starting new practical learning branch using nbdev

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "python.formatting.provider": "autopep8",
+  "C_Cpp.default.configurationProvider": "ms-vscode.makefile-tools",
+  "esbonio.sphinx.confDir": ""
+}

lesson02/.gitconfig

@@ -0,0 +1,11 @@
+# Generated by nbdev_install_hooks
+#
+# If you need to disable this instrumentation do:
+#   git config --local --unset include.path
+#
+# To restore:
+#   git config --local include.path ../.gitconfig
+#
+[merge "nbdev-merge"]
+name = resolve conflicts with nbdev_fix
+driver = nbdev_merge %O %A %B %P

lesson02/.gitignore

@@ -0,0 +1,89 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# DotEnv configuration
+.env
+
+# Database
+*.db
+*.rdb
+
+# Pycharm
+.idea
+
+# VS Code
+.vscode/
+
+# Spyder
+.spyproject/
+
+# Jupyter NB Checkpoints
+.ipynb_checkpoints/
+
+# exclude data from source control by default
+/data/
+
+# Mac OS-specific storage files
+.DS_Store
+
+# vim
+*.swp
+*.swo
+
+# Mypy cache
+.mypy_cache/

lesson02/LICENSE

@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright (c) 2023, Byron Wright
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

lesson02/Makefile

@@ -0,0 +1,144 @@
+.PHONY: clean data lint requirements sync_data_to_s3 sync_data_from_s3
+
+#################################################################################
+# GLOBALS                                                                       #
+#################################################################################
+
+PROJECT_DIR := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
+BUCKET = [OPTIONAL] your-bucket-for-syncing-data (do not include 's3://')
+PROFILE = default
+PROJECT_NAME = lesson02
+PYTHON_INTERPRETER = python3
+
+ifeq (,$(shell which conda))
+HAS_CONDA=False
+else
+HAS_CONDA=True
+endif
+
+#################################################################################
+# COMMANDS                                                                      #
+#################################################################################
+
+## Install Python Dependencies
+requirements: test_environment
+	$(PYTHON_INTERPRETER) -m pip install -U pip setuptools wheel
+	$(PYTHON_INTERPRETER) -m pip install -r requirements.txt
+
+## Make Dataset
+data: requirements
+	$(PYTHON_INTERPRETER) src/data/make_dataset.py data/raw data/processed
+
+## Delete all compiled Python files
+clean:
+	find . -type f -name "*.py[co]" -delete
+	find . -type d -name "__pycache__" -delete
+
+## Lint using flake8
+lint:
+	flake8 src
+
+## Upload Data to S3
+sync_data_to_s3:
+ifeq (default,$(PROFILE))
+	aws s3 sync data/ s3://$(BUCKET)/data/
+else
+	aws s3 sync data/ s3://$(BUCKET)/data/ --profile $(PROFILE)
+endif
+
+## Download Data from S3
+sync_data_from_s3:
+ifeq (default,$(PROFILE))
+	aws s3 sync s3://$(BUCKET)/data/ data/
+else
+	aws s3 sync s3://$(BUCKET)/data/ data/ --profile $(PROFILE)
+endif
+
+## Set up python interpreter environment
+create_environment:
+ifeq (True,$(HAS_CONDA))
+		@echo ">>> Detected conda, creating conda environment."
+ifeq (3,$(findstring 3,$(PYTHON_INTERPRETER)))
+	conda create --name $(PROJECT_NAME) python=3
+else
+	conda create --name $(PROJECT_NAME) python=2.7
+endif
+		@echo ">>> New conda env created. Activate with:\nsource activate $(PROJECT_NAME)"
+else
+	$(PYTHON_INTERPRETER) -m pip install -q virtualenv virtualenvwrapper
+	@echo ">>> Installing virtualenvwrapper if not already installed.\nMake sure the following lines are in shell startup file\n\
+	export WORKON_HOME=$$HOME/.virtualenvs\nexport PROJECT_HOME=$$HOME/Devel\nsource /usr/local/bin/virtualenvwrapper.sh\n"
+	@bash -c "source `which virtualenvwrapper.sh`;mkvirtualenv $(PROJECT_NAME) --python=$(PYTHON_INTERPRETER)"
+	@echo ">>> New virtualenv created. Activate with:\nworkon $(PROJECT_NAME)"
+endif
+
+## Test python environment is setup correctly
+test_environment:
+	$(PYTHON_INTERPRETER) test_environment.py
+
+#################################################################################
+# PROJECT RULES                                                                 #
+#################################################################################
+
+
+
+#################################################################################
+# Self Documenting Commands                                                     #
+#################################################################################
+
+.DEFAULT_GOAL := help
+
+# Inspired by <http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html>
+# sed script explained:
+# /^##/:
+# 	* save line in hold space
+# 	* purge line
+# 	* Loop:
+# 		* append newline + line to hold space
+# 		* go to next line
+# 		* if line starts with doc comment, strip comment character off and loop
+# 	* remove target prerequisites
+# 	* append hold space (+ newline) to line
+# 	* replace newline plus comments by `---`
+# 	* print line
+# Separate expressions are necessary because labels cannot be delimited by
+# semicolon; see <http://stackoverflow.com/a/11799865/1968>
+.PHONY: help
+help:
+	@echo "$$(tput bold)Available rules:$$(tput sgr0)"
+	@echo
+	@sed -n -e "/^## / { \
+		h; \
+		s/.*//; \
+		:doc" \
+		-e "H; \
+		n; \
+		s/^## //; \
+		t doc" \
+		-e "s/:.*//; \
+		G; \
+		s/\\n## /---/; \
+		s/\\n/ /g; \
+		p; \
+	}" ${MAKEFILE_LIST} \
+	| LC_ALL='C' sort --ignore-case \
+	| awk -F '---' \
+		-v ncol=$$(tput cols) \
+		-v indent=19 \
+		-v col_on="$$(tput setaf 6)" \
+		-v col_off="$$(tput sgr0)" \
+	'{ \
+		printf "%s%*s%s ", col_on, -indent, $$1, col_off; \
+		n = split($$2, words, " "); \
+		line_length = ncol - indent; \
+		for (i = 1; i <= n; i++) { \
+			line_length -= length(words[i]) + 1; \
+			if (line_length <= 0) { \
+				line_length = ncol - indent - length(words[i]) - 1; \
+				printf "\n%*s ", -indent, " "; \
+			} \
+			printf "%s ", words[i]; \
+		} \
+		printf "\n"; \
+	}' \
+	| more $(shell test $(shell uname) = Darwin && echo '--no-init --raw-control-chars')

lesson02/README.md

@@ -0,0 +1,57 @@
+Lesson02
+==============================
+
+Lesson02 fastai
+
+Project Organization
+------------
+
+    ├── LICENSE
+    ├── Makefile           <- Makefile with commands like `make data` or `make train`
+    ├── README.md          <- The top-level README for developers using this project.
+    ├── data
+    │   ├── external       <- Data from third party sources.
+    │   ├── interim        <- Intermediate data that has been transformed.
+    │   ├── processed      <- The final, canonical data sets for modeling.
+    │   └── raw            <- The original, immutable data dump.
+    │
+    ├── docs               <- A default Sphinx project; see sphinx-doc.org for details
+    │
+    ├── models             <- Trained and serialized models, model predictions, or model summaries
+    │
+    ├── notebooks          <- Jupyter notebooks. Naming convention is a number (for ordering),
+    │                         the creator's initials, and a short `-` delimited description, e.g.
+    │                         `1.0-jqp-initial-data-exploration`.
+    │
+    ├── references         <- Data dictionaries, manuals, and all other explanatory materials.
+    │
+    ├── reports            <- Generated analysis as HTML, PDF, LaTeX, etc.
+    │   └── figures        <- Generated graphics and figures to be used in reporting
+    │
+    ├── requirements.txt   <- The requirements file for reproducing the analysis environment, e.g.
+    │                         generated with `pip freeze > requirements.txt`
+    │
+    ├── setup.py           <- makes project pip installable (pip install -e .) so src can be imported
+    ├── src                <- Source code for use in this project.
+    │   ├── __init__.py    <- Makes src a Python module
+    │   │
+    │   ├── data           <- Scripts to download or generate data
+    │   │   └── make_dataset.py
+    │   │
+    │   ├── features       <- Scripts to turn raw data into features for modeling
+    │   │   └── build_features.py
+    │   │
+    │   ├── models         <- Scripts to train models and then use trained models to make
+    │   │   │                 predictions
+    │   │   ├── predict_model.py
+    │   │   └── train_model.py
+    │   │
+    │   └── visualization  <- Scripts to create exploratory and results oriented visualizations
+    │       └── visualize.py
+    │
+    └── tox.ini            <- tox file with settings for running tox; see tox.readthedocs.io
+
+
+--------
+
+<p><small>Project based on the <a target="_blank" href="https://drivendata.github.io/cookiecutter-data-science/">cookiecutter data science project template</a>. #cookiecutterdatascience</small></p>

lesson02/docs/Makefile

@@ -0,0 +1,153 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	-rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/lesson02.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/lesson02.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/lesson02"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/lesson02"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."

lesson02/docs/commands.rst

@@ -0,0 +1,10 @@
+Commands
+========
+
+The Makefile contains the central entry points for common tasks related to this project.
+
+Syncing data to S3
+^^^^^^^^^^^^^^^^^^
+
+* `make sync_data_to_s3` will use `aws s3 sync` to recursively sync files in `data/` up to `s3://[OPTIONAL] your-bucket-for-syncing-data (do not include 's3://')/data/`.
+* `make sync_data_from_s3` will use `aws s3 sync` to recursively sync files from `s3://[OPTIONAL] your-bucket-for-syncing-data (do not include 's3://')/data/` to `data/`.

lesson02/docs/conf.py

@@ -0,0 +1,244 @@
+# -*- coding: utf-8 -*-
+#
+# Lesson02 documentation build configuration file, created by
+# sphinx-quickstart.
+#
+# This file is execfile()d with the current directory set to its containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import os
+import sys
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+# sys.path.insert(0, os.path.abspath('.'))
+
+# -- General configuration -----------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+# needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be extensions
+# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = []
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The encoding of source files.
+# source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'Lesson02'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = '0.1'
+# The full version, including alpha/beta/rc tags.
+release = '0.1'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+# language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+# today = ''
+# Else, today_fmt is used as the format for a strftime call.
+# today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = ['_build']
+
+# The reST default role (used for this markup: `text`) to use for all documents.
+# default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+# add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+# add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+# show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+# modindex_common_prefix = []
+
+
+# -- Options for HTML output ---------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = 'default'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+# html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+# html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+# html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+# html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+# html_logo = None
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+# html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+# html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+# html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+# html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+# html_additional_pages = {}
+
+# If false, no module index is generated.
+# html_domain_indices = True
+
+# If false, no index is generated.
+# html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+# html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+# html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+# html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+# html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+# html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+# html_file_suffix = None
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'lesson02doc'
+
+
+# -- Options for LaTeX output --------------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    # 'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    # 'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    # 'preamble': '',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, documentclass [howto/manual]).
+latex_documents = [
+    ('index',
+     'lesson02.tex',
+     u'Lesson02 Documentation',
+     u"Byron Wright", 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+# latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+# latex_use_parts = False
+
+# If true, show page references after internal links.
+# latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+# latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+# latex_appendices = []
+
+# If false, no module index is generated.
+# latex_domain_indices = True
+
+
+# -- Options for manual page output --------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    ('index', 'lesson02', u'Lesson02 Documentation',
+     [u"Byron Wright"], 1)
+]
+
+# If true, show URL addresses after external links.
+# man_show_urls = False
+
+
+# -- Options for Texinfo output ------------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    ('index', 'lesson02', u'Lesson02 Documentation',
+     u"Byron Wright", 'Lesson02',
+     'Lesson02 fastai', 'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+# texinfo_appendices = []
+
+# If false, no module index is generated.
+# texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+# texinfo_show_urls = 'footnote'

lesson02/docs/getting-started.rst

@@ -0,0 +1,6 @@
+Getting started
+===============
+
+This is where you describe how to get set up on a clean install, including the
+commands necessary to get the raw data (using the `sync_data_from_s3` command,
+for example), and then how to make the cleaned, final data sets.

lesson02/docs/index.rst

@@ -0,0 +1,24 @@
+.. Lesson02 documentation master file, created by
+   sphinx-quickstart.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Lesson02 documentation!
+==============================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   getting-started
+   commands
+
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`

lesson02/docs/make.bat

@@ -0,0 +1,190 @@
+@ECHO OFF
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set BUILDDIR=_build
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+set I18NSPHINXOPTS=%SPHINXOPTS% .
+if NOT "%PAPER%" == "" (
+	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
+	set I18NSPHINXOPTS=-D latex_paper_size=%PAPER% %I18NSPHINXOPTS%
+)
+
+if "%1" == "" goto help
+
+if "%1" == "help" (
+	:help
+	echo.Please use `make ^<target^>` where ^<target^> is one of
+	echo.  html       to make standalone HTML files
+	echo.  dirhtml    to make HTML files named index.html in directories
+	echo.  singlehtml to make a single large HTML file
+	echo.  pickle     to make pickle files
+	echo.  json       to make JSON files
+	echo.  htmlhelp   to make HTML files and a HTML help project
+	echo.  qthelp     to make HTML files and a qthelp project
+	echo.  devhelp    to make HTML files and a Devhelp project
+	echo.  epub       to make an epub
+	echo.  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter
+	echo.  text       to make text files
+	echo.  man        to make manual pages
+	echo.  texinfo    to make Texinfo files
+	echo.  gettext    to make PO message catalogs
+	echo.  changes    to make an overview over all changed/added/deprecated items
+	echo.  linkcheck  to check all external links for integrity
+	echo.  doctest    to run all doctests embedded in the documentation if enabled
+	goto end
+)
+
+if "%1" == "clean" (
+	for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
+	del /q /s %BUILDDIR%\*
+	goto end
+)
+
+if "%1" == "html" (
+	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
+	goto end
+)
+
+if "%1" == "dirhtml" (
+	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
+	goto end
+)
+
+if "%1" == "singlehtml" (
+	%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
+	goto end
+)
+
+if "%1" == "pickle" (
+	%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the pickle files.
+	goto end
+)
+
+if "%1" == "json" (
+	%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the JSON files.
+	goto end
+)
+
+if "%1" == "htmlhelp" (
+	%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run HTML Help Workshop with the ^
+.hhp project file in %BUILDDIR%/htmlhelp.
+	goto end
+)
+
+if "%1" == "qthelp" (
+	%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run "qcollectiongenerator" with the ^
+.qhcp project file in %BUILDDIR%/qthelp, like this:
+	echo.^> qcollectiongenerator %BUILDDIR%\qthelp\lesson02.qhcp
+	echo.To view the help file:
+	echo.^> assistant -collectionFile %BUILDDIR%\qthelp\lesson02.ghc
+	goto end
+)
+
+if "%1" == "devhelp" (
+	%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished.
+	goto end
+)
+
+if "%1" == "epub" (
+	%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The epub file is in %BUILDDIR%/epub.
+	goto end
+)
+
+if "%1" == "latex" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "text" (
+	%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The text files are in %BUILDDIR%/text.
+	goto end
+)
+
+if "%1" == "man" (
+	%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The manual pages are in %BUILDDIR%/man.
+	goto end
+)
+
+if "%1" == "texinfo" (
+	%SPHINXBUILD% -b texinfo %ALLSPHINXOPTS% %BUILDDIR%/texinfo
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The Texinfo files are in %BUILDDIR%/texinfo.
+	goto end
+)
+
+if "%1" == "gettext" (
+	%SPHINXBUILD% -b gettext %I18NSPHINXOPTS% %BUILDDIR%/locale
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The message catalogs are in %BUILDDIR%/locale.
+	goto end
+)
+
+if "%1" == "changes" (
+	%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.The overview file is in %BUILDDIR%/changes.
+	goto end
+)
+
+if "%1" == "linkcheck" (
+	%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Link check complete; look for any errors in the above output ^
+or in %BUILDDIR%/linkcheck/output.txt.
+	goto end
+)
+
+if "%1" == "doctest" (
+	%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of doctests in the sources finished, look at the ^
+results in %BUILDDIR%/doctest/output.txt.
+	goto end
+)
+
+:end

lesson02/notebooks/Lesson02.ipynb

@@ -0,0 +1,176 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/torchvision/models/_utils.py:208: UserWarning: The parameter 'pretrained' is deprecated since 0.13 and may be removed in the future, please use 'weights' instead.\n",
+      "  warnings.warn(\n",
+      "/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/torchvision/models/_utils.py:223: UserWarning: Arguments other than a weight enum or `None` for 'weights' are deprecated since 0.13 and may be removed in the future. The current behavior is equivalent to passing `weights=ResNet34_Weights.IMAGENET1K_V1`. You can also use `weights=ResNet34_Weights.DEFAULT` to get the most up-to-date weights.\n",
+      "  warnings.warn(msg)\n"
+     ]
+    }
+   ],
+   "source": [
+    "#id first_training\n",
+    "#caption Results from the first training\n",
+    "# CLICK ME\n",
+    "#|export\n",
+    "from fastai.vision.all import *\n",
+    "path = untar_data(URLs.PETS)/'images'\n",
+    "\n",
+    "def is_cat(x): return x[0].isupper()\n",
+    "dls = ImageDataLoaders.from_name_func(\n",
+    "    path, get_image_files(path), \n",
+    "    valid_pct=0.2, \n",
+    "    seed=42,\n",
+    "    label_func=is_cat, \n",
+    "    item_tfms=Resize(224)\n",
+    ")\n",
+    "\n",
+    "learn = vision_learner(dls, resnet34, metrics=error_rate)\n",
+    "learn.fine_tune(1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "7714f88d5b1a4e198c60d4303a7dbf50",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "FileUpload(value=(), description='Upload')"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "\n",
+    "from ipywidgets import widgets\n",
+    "from IPython.display import display\n",
+    "uploader = widgets.FileUpload()\n",
+    "display(uploader)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#|export\n",
+    "# For the book, we can't actually click an upload button, so we fake it\n",
+    "uploader = SimpleNamespace(data = ['../data/interim/th-1.webp'])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "    <div>\n",
+       "      <progress value='0' class='' max='1' style='width:300px; height:20px; vertical-align: middle;'></progress>\n",
+       "      0.00% [0/1 00:00&lt;?]\n",
+       "    </div>\n",
+       "    "
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "ename": "AttributeError",
+     "evalue": "read",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
+      "Cell \u001b[0;32mIn[11], line 2\u001b[0m\n\u001b[1;32m      1\u001b[0m img \u001b[39m=\u001b[39m PILImage\u001b[39m.\u001b[39mcreate(uploader\u001b[39m.\u001b[39mdata[\u001b[39m0\u001b[39m])\n\u001b[0;32m----> 2\u001b[0m is_cat,_,probs \u001b[39m=\u001b[39m learn\u001b[39m.\u001b[39;49mpredict(img)\n\u001b[1;32m      3\u001b[0m \u001b[39mprint\u001b[39m(\u001b[39mf\u001b[39m\u001b[39m\"\u001b[39m\u001b[39mIs this a cat?: \u001b[39m\u001b[39m{\u001b[39;00mis_cat\u001b[39m}\u001b[39;00m\u001b[39m.\u001b[39m\u001b[39m\"\u001b[39m)\n\u001b[1;32m      4\u001b[0m \u001b[39mprint\u001b[39m(\u001b[39mf\u001b[39m\u001b[39m\"\u001b[39m\u001b[39mProbability it\u001b[39m\u001b[39m'\u001b[39m\u001b[39ms a cat: \u001b[39m\u001b[39m{\u001b[39;00mprobs[\u001b[39m1\u001b[39m]\u001b[39m.\u001b[39mitem()\u001b[39m:\u001b[39;00m\u001b[39m.6f\u001b[39m\u001b[39m}\u001b[39;00m\u001b[39m\"\u001b[39m)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/learner.py:321\u001b[0m, in \u001b[0;36mLearner.predict\u001b[0;34m(self, item, rm_type_tfms, with_input)\u001b[0m\n\u001b[1;32m    319\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39mpredict\u001b[39m(\u001b[39mself\u001b[39m, item, rm_type_tfms\u001b[39m=\u001b[39m\u001b[39mNone\u001b[39;00m, with_input\u001b[39m=\u001b[39m\u001b[39mFalse\u001b[39;00m):\n\u001b[1;32m    320\u001b[0m     dl \u001b[39m=\u001b[39m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdls\u001b[39m.\u001b[39mtest_dl([item], rm_type_tfms\u001b[39m=\u001b[39mrm_type_tfms, num_workers\u001b[39m=\u001b[39m\u001b[39m0\u001b[39m)\n\u001b[0;32m--> 321\u001b[0m     inp,preds,_,dec_preds \u001b[39m=\u001b[39m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mget_preds(dl\u001b[39m=\u001b[39;49mdl, with_input\u001b[39m=\u001b[39;49m\u001b[39mTrue\u001b[39;49;00m, with_decoded\u001b[39m=\u001b[39;49m\u001b[39mTrue\u001b[39;49;00m)\n\u001b[1;32m    322\u001b[0m     i \u001b[39m=\u001b[39m \u001b[39mgetattr\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdls, \u001b[39m'\u001b[39m\u001b[39mn_inp\u001b[39m\u001b[39m'\u001b[39m, \u001b[39m-\u001b[39m\u001b[39m1\u001b[39m)\n\u001b[1;32m    323\u001b[0m     inp \u001b[39m=\u001b[39m (inp,) \u001b[39mif\u001b[39;00m i\u001b[39m==\u001b[39m\u001b[39m1\u001b[39m \u001b[39melse\u001b[39;00m tuplify(inp)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/learner.py:308\u001b[0m, in \u001b[0;36mLearner.get_preds\u001b[0;34m(self, ds_idx, dl, with_input, with_decoded, with_loss, act, inner, reorder, cbs, **kwargs)\u001b[0m\n\u001b[1;32m    306\u001b[0m \u001b[39mif\u001b[39;00m with_loss: ctx_mgrs\u001b[39m.\u001b[39mappend(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mloss_not_reduced())\n\u001b[1;32m    307\u001b[0m \u001b[39mwith\u001b[39;00m ContextManagers(ctx_mgrs):\n\u001b[0;32m--> 308\u001b[0m     \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_do_epoch_validate(dl\u001b[39m=\u001b[39;49mdl)\n\u001b[1;32m    309\u001b[0m     \u001b[39mif\u001b[39;00m act \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m: act \u001b[39m=\u001b[39m getcallable(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mloss_func, \u001b[39m'\u001b[39m\u001b[39mactivation\u001b[39m\u001b[39m'\u001b[39m)\n\u001b[1;32m    310\u001b[0m     res \u001b[39m=\u001b[39m cb\u001b[39m.\u001b[39mall_tensors()\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/learner.py:244\u001b[0m, in \u001b[0;36mLearner._do_epoch_validate\u001b[0;34m(self, ds_idx, dl)\u001b[0m\n\u001b[1;32m    242\u001b[0m \u001b[39mif\u001b[39;00m dl \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m: dl \u001b[39m=\u001b[39m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdls[ds_idx]\n\u001b[1;32m    243\u001b[0m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdl \u001b[39m=\u001b[39m dl\n\u001b[0;32m--> 244\u001b[0m \u001b[39mwith\u001b[39;00m torch\u001b[39m.\u001b[39mno_grad(): \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_with_events(\u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mall_batches, \u001b[39m'\u001b[39;49m\u001b[39mvalidate\u001b[39;49m\u001b[39m'\u001b[39;49m, CancelValidException)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/learner.py:199\u001b[0m, in \u001b[0;36mLearner._with_events\u001b[0;34m(self, f, event_type, ex, final)\u001b[0m\n\u001b[1;32m    198\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m_with_events\u001b[39m(\u001b[39mself\u001b[39m, f, event_type, ex, final\u001b[39m=\u001b[39mnoop):\n\u001b[0;32m--> 199\u001b[0m     \u001b[39mtry\u001b[39;00m: \u001b[39mself\u001b[39m(\u001b[39mf\u001b[39m\u001b[39m'\u001b[39m\u001b[39mbefore_\u001b[39m\u001b[39m{\u001b[39;00mevent_type\u001b[39m}\u001b[39;00m\u001b[39m'\u001b[39m);  f()\n\u001b[1;32m    200\u001b[0m     \u001b[39mexcept\u001b[39;00m ex: \u001b[39mself\u001b[39m(\u001b[39mf\u001b[39m\u001b[39m'\u001b[39m\u001b[39mafter_cancel_\u001b[39m\u001b[39m{\u001b[39;00mevent_type\u001b[39m}\u001b[39;00m\u001b[39m'\u001b[39m)\n\u001b[1;32m    201\u001b[0m     \u001b[39mself\u001b[39m(\u001b[39mf\u001b[39m\u001b[39m'\u001b[39m\u001b[39mafter_\u001b[39m\u001b[39m{\u001b[39;00mevent_type\u001b[39m}\u001b[39;00m\u001b[39m'\u001b[39m);  final()\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/learner.py:205\u001b[0m, in \u001b[0;36mLearner.all_batches\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m    203\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39mall_batches\u001b[39m(\u001b[39mself\u001b[39m):\n\u001b[1;32m    204\u001b[0m     \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mn_iter \u001b[39m=\u001b[39m \u001b[39mlen\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdl)\n\u001b[0;32m--> 205\u001b[0m     \u001b[39mfor\u001b[39;00m o \u001b[39min\u001b[39;00m \u001b[39menumerate\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdl): \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mone_batch(\u001b[39m*\u001b[39mo)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/load.py:127\u001b[0m, in \u001b[0;36mDataLoader.__iter__\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m    125\u001b[0m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mbefore_iter()\n\u001b[1;32m    126\u001b[0m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m__idxs\u001b[39m=\u001b[39m\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mget_idxs() \u001b[39m# called in context of main process (not workers/subprocesses)\u001b[39;00m\n\u001b[0;32m--> 127\u001b[0m \u001b[39mfor\u001b[39;00m b \u001b[39min\u001b[39;00m _loaders[\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mfake_l\u001b[39m.\u001b[39mnum_workers\u001b[39m==\u001b[39m\u001b[39m0\u001b[39m](\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mfake_l):\n\u001b[1;32m    128\u001b[0m     \u001b[39m# pin_memory causes tuples to be converted to lists, so convert them back to tuples\u001b[39;00m\n\u001b[1;32m    129\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mpin_memory \u001b[39mand\u001b[39;00m \u001b[39mtype\u001b[39m(b) \u001b[39m==\u001b[39m \u001b[39mlist\u001b[39m: b \u001b[39m=\u001b[39m \u001b[39mtuple\u001b[39m(b)\n\u001b[1;32m    130\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdevice \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m: b \u001b[39m=\u001b[39m to_device(b, \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdevice)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/torch/utils/data/dataloader.py:628\u001b[0m, in \u001b[0;36m_BaseDataLoaderIter.__next__\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m    625\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_sampler_iter \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m:\n\u001b[1;32m    626\u001b[0m     \u001b[39m# TODO(https://github.com/pytorch/pytorch/issues/76750)\u001b[39;00m\n\u001b[1;32m    627\u001b[0m     \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_reset()  \u001b[39m# type: ignore[call-arg]\u001b[39;00m\n\u001b[0;32m--> 628\u001b[0m data \u001b[39m=\u001b[39m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_next_data()\n\u001b[1;32m    629\u001b[0m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_num_yielded \u001b[39m+\u001b[39m\u001b[39m=\u001b[39m \u001b[39m1\u001b[39m\n\u001b[1;32m    630\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_dataset_kind \u001b[39m==\u001b[39m _DatasetKind\u001b[39m.\u001b[39mIterable \u001b[39mand\u001b[39;00m \\\n\u001b[1;32m    631\u001b[0m         \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_IterableDataset_len_called \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m \u001b[39mand\u001b[39;00m \\\n\u001b[1;32m    632\u001b[0m         \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_num_yielded \u001b[39m>\u001b[39m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_IterableDataset_len_called:\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/torch/utils/data/dataloader.py:671\u001b[0m, in \u001b[0;36m_SingleProcessDataLoaderIter._next_data\u001b[0;34m(self)\u001b[0m\n\u001b[1;32m    669\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m_next_data\u001b[39m(\u001b[39mself\u001b[39m):\n\u001b[1;32m    670\u001b[0m     index \u001b[39m=\u001b[39m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_next_index()  \u001b[39m# may raise StopIteration\u001b[39;00m\n\u001b[0;32m--> 671\u001b[0m     data \u001b[39m=\u001b[39m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_dataset_fetcher\u001b[39m.\u001b[39;49mfetch(index)  \u001b[39m# may raise StopIteration\u001b[39;00m\n\u001b[1;32m    672\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_pin_memory:\n\u001b[1;32m    673\u001b[0m         data \u001b[39m=\u001b[39m _utils\u001b[39m.\u001b[39mpin_memory\u001b[39m.\u001b[39mpin_memory(data, \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_pin_memory_device)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/torch/utils/data/_utils/fetch.py:43\u001b[0m, in \u001b[0;36m_IterableDatasetFetcher.fetch\u001b[0;34m(self, possibly_batched_index)\u001b[0m\n\u001b[1;32m     41\u001b[0m         \u001b[39mraise\u001b[39;00m \u001b[39mStopIteration\u001b[39;00m\n\u001b[1;32m     42\u001b[0m \u001b[39melse\u001b[39;00m:\n\u001b[0;32m---> 43\u001b[0m     data \u001b[39m=\u001b[39m \u001b[39mnext\u001b[39;49m(\u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mdataset_iter)\n\u001b[1;32m     44\u001b[0m \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mcollate_fn(data)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/load.py:138\u001b[0m, in \u001b[0;36mDataLoader.create_batches\u001b[0;34m(self, samps)\u001b[0m\n\u001b[1;32m    136\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdataset \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m: \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mit \u001b[39m=\u001b[39m \u001b[39miter\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdataset)\n\u001b[1;32m    137\u001b[0m res \u001b[39m=\u001b[39m \u001b[39mfilter\u001b[39m(\u001b[39mlambda\u001b[39;00m o:o \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m, \u001b[39mmap\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdo_item, samps))\n\u001b[0;32m--> 138\u001b[0m \u001b[39myield from\u001b[39;00m \u001b[39mmap\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mdo_batch, \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mchunkify(res))\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/basics.py:230\u001b[0m, in \u001b[0;36mchunked\u001b[0;34m(it, chunk_sz, drop_last, n_chunks)\u001b[0m\n\u001b[1;32m    228\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39misinstance\u001b[39m(it, Iterator): it \u001b[39m=\u001b[39m \u001b[39miter\u001b[39m(it)\n\u001b[1;32m    229\u001b[0m \u001b[39mwhile\u001b[39;00m \u001b[39mTrue\u001b[39;00m:\n\u001b[0;32m--> 230\u001b[0m     res \u001b[39m=\u001b[39m \u001b[39mlist\u001b[39;49m(itertools\u001b[39m.\u001b[39;49mislice(it, chunk_sz))\n\u001b[1;32m    231\u001b[0m     \u001b[39mif\u001b[39;00m res \u001b[39mand\u001b[39;00m (\u001b[39mlen\u001b[39m(res)\u001b[39m==\u001b[39mchunk_sz \u001b[39mor\u001b[39;00m \u001b[39mnot\u001b[39;00m drop_last): \u001b[39myield\u001b[39;00m res\n\u001b[1;32m    232\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mlen\u001b[39m(res)\u001b[39m<\u001b[39mchunk_sz: \u001b[39mreturn\u001b[39;00m\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/load.py:153\u001b[0m, in \u001b[0;36mDataLoader.do_item\u001b[0;34m(self, s)\u001b[0m\n\u001b[1;32m    152\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39mdo_item\u001b[39m(\u001b[39mself\u001b[39m, s):\n\u001b[0;32m--> 153\u001b[0m     \u001b[39mtry\u001b[39;00m: \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mafter_item(\u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mcreate_item(s))\n\u001b[1;32m    154\u001b[0m     \u001b[39mexcept\u001b[39;00m SkipItemException: \u001b[39mreturn\u001b[39;00m \u001b[39mNone\u001b[39;00m\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/load.py:160\u001b[0m, in \u001b[0;36mDataLoader.create_item\u001b[0;34m(self, s)\u001b[0m\n\u001b[1;32m    159\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39mcreate_item\u001b[39m(\u001b[39mself\u001b[39m, s):\n\u001b[0;32m--> 160\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mindexed: \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mdataset[s \u001b[39mor\u001b[39;49;00m \u001b[39m0\u001b[39;49m]\n\u001b[1;32m    161\u001b[0m     \u001b[39melif\u001b[39;00m s \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m:  \u001b[39mreturn\u001b[39;00m \u001b[39mnext\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39mit)\n\u001b[1;32m    162\u001b[0m     \u001b[39melse\u001b[39;00m: \u001b[39mraise\u001b[39;00m \u001b[39mIndexError\u001b[39;00m(\u001b[39m\"\u001b[39m\u001b[39mCannot index an iterable dataset numerically - must use `None`.\u001b[39m\u001b[39m\"\u001b[39m)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/core.py:458\u001b[0m, in \u001b[0;36mDatasets.__getitem__\u001b[0;34m(self, it)\u001b[0m\n\u001b[1;32m    457\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m__getitem__\u001b[39m(\u001b[39mself\u001b[39m, it):\n\u001b[0;32m--> 458\u001b[0m     res \u001b[39m=\u001b[39m \u001b[39mtuple\u001b[39m([tl[it] \u001b[39mfor\u001b[39;00m tl \u001b[39min\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mtls])\n\u001b[1;32m    459\u001b[0m     \u001b[39mreturn\u001b[39;00m res \u001b[39mif\u001b[39;00m is_indexer(it) \u001b[39melse\u001b[39;00m \u001b[39mlist\u001b[39m(\u001b[39mzip\u001b[39m(\u001b[39m*\u001b[39mres))\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/core.py:458\u001b[0m, in \u001b[0;36m<listcomp>\u001b[0;34m(.0)\u001b[0m\n\u001b[1;32m    457\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m__getitem__\u001b[39m(\u001b[39mself\u001b[39m, it):\n\u001b[0;32m--> 458\u001b[0m     res \u001b[39m=\u001b[39m \u001b[39mtuple\u001b[39m([tl[it] \u001b[39mfor\u001b[39;00m tl \u001b[39min\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mtls])\n\u001b[1;32m    459\u001b[0m     \u001b[39mreturn\u001b[39;00m res \u001b[39mif\u001b[39;00m is_indexer(it) \u001b[39melse\u001b[39;00m \u001b[39mlist\u001b[39m(\u001b[39mzip\u001b[39m(\u001b[39m*\u001b[39mres))\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/core.py:417\u001b[0m, in \u001b[0;36mTfmdLists.__getitem__\u001b[0;34m(self, idx)\u001b[0m\n\u001b[1;32m    415\u001b[0m res \u001b[39m=\u001b[39m \u001b[39msuper\u001b[39m()\u001b[39m.\u001b[39m\u001b[39m__getitem__\u001b[39m(idx)\n\u001b[1;32m    416\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_after_item \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m: \u001b[39mreturn\u001b[39;00m res\n\u001b[0;32m--> 417\u001b[0m \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_after_item(res) \u001b[39mif\u001b[39;00m is_indexer(idx) \u001b[39melse\u001b[39;00m res\u001b[39m.\u001b[39mmap(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_after_item)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/data/core.py:377\u001b[0m, in \u001b[0;36mTfmdLists._after_item\u001b[0;34m(self, o)\u001b[0m\n\u001b[0;32m--> 377\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m_after_item\u001b[39m(\u001b[39mself\u001b[39m, o): \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mtfms(o)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/transform.py:208\u001b[0m, in \u001b[0;36mPipeline.__call__\u001b[0;34m(self, o)\u001b[0m\n\u001b[0;32m--> 208\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m__call__\u001b[39m(\u001b[39mself\u001b[39m, o): \u001b[39mreturn\u001b[39;00m compose_tfms(o, tfms\u001b[39m=\u001b[39;49m\u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49mfs, split_idx\u001b[39m=\u001b[39;49m\u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49msplit_idx)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/transform.py:158\u001b[0m, in \u001b[0;36mcompose_tfms\u001b[0;34m(x, tfms, is_enc, reverse, **kwargs)\u001b[0m\n\u001b[1;32m    156\u001b[0m \u001b[39mfor\u001b[39;00m f \u001b[39min\u001b[39;00m tfms:\n\u001b[1;32m    157\u001b[0m     \u001b[39mif\u001b[39;00m \u001b[39mnot\u001b[39;00m is_enc: f \u001b[39m=\u001b[39m f\u001b[39m.\u001b[39mdecode\n\u001b[0;32m--> 158\u001b[0m     x \u001b[39m=\u001b[39m f(x, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mkwargs)\n\u001b[1;32m    159\u001b[0m \u001b[39mreturn\u001b[39;00m x\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/transform.py:81\u001b[0m, in \u001b[0;36mTransform.__call__\u001b[0;34m(self, x, **kwargs)\u001b[0m\n\u001b[0;32m---> 81\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m__call__\u001b[39m(\u001b[39mself\u001b[39m, x, \u001b[39m*\u001b[39m\u001b[39m*\u001b[39mkwargs): \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_call(\u001b[39m'\u001b[39;49m\u001b[39mencodes\u001b[39;49m\u001b[39m'\u001b[39;49m, x, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mkwargs)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/transform.py:91\u001b[0m, in \u001b[0;36mTransform._call\u001b[0;34m(self, fn, x, split_idx, **kwargs)\u001b[0m\n\u001b[1;32m     89\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39m_call\u001b[39m(\u001b[39mself\u001b[39m, fn, x, split_idx\u001b[39m=\u001b[39m\u001b[39mNone\u001b[39;00m, \u001b[39m*\u001b[39m\u001b[39m*\u001b[39mkwargs):\n\u001b[1;32m     90\u001b[0m     \u001b[39mif\u001b[39;00m split_idx\u001b[39m!=\u001b[39m\u001b[39mself\u001b[39m\u001b[39m.\u001b[39msplit_idx \u001b[39mand\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39msplit_idx \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m: \u001b[39mreturn\u001b[39;00m x\n\u001b[0;32m---> 91\u001b[0m     \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39;49m\u001b[39m.\u001b[39;49m_do_call(\u001b[39mgetattr\u001b[39;49m(\u001b[39mself\u001b[39;49m, fn), x, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mkwargs)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/transform.py:97\u001b[0m, in \u001b[0;36mTransform._do_call\u001b[0;34m(self, f, x, **kwargs)\u001b[0m\n\u001b[1;32m     95\u001b[0m     \u001b[39mif\u001b[39;00m f \u001b[39mis\u001b[39;00m \u001b[39mNone\u001b[39;00m: \u001b[39mreturn\u001b[39;00m x\n\u001b[1;32m     96\u001b[0m     ret \u001b[39m=\u001b[39m f\u001b[39m.\u001b[39mreturns(x) \u001b[39mif\u001b[39;00m \u001b[39mhasattr\u001b[39m(f,\u001b[39m'\u001b[39m\u001b[39mreturns\u001b[39m\u001b[39m'\u001b[39m) \u001b[39melse\u001b[39;00m \u001b[39mNone\u001b[39;00m\n\u001b[0;32m---> 97\u001b[0m     \u001b[39mreturn\u001b[39;00m retain_type(f(x, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mkwargs), x, ret)\n\u001b[1;32m     98\u001b[0m res \u001b[39m=\u001b[39m \u001b[39mtuple\u001b[39m(\u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_do_call(f, x_, \u001b[39m*\u001b[39m\u001b[39m*\u001b[39mkwargs) \u001b[39mfor\u001b[39;00m x_ \u001b[39min\u001b[39;00m x)\n\u001b[1;32m     99\u001b[0m \u001b[39mreturn\u001b[39;00m retain_type(res, x)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastcore/dispatch.py:120\u001b[0m, in \u001b[0;36mTypeDispatch.__call__\u001b[0;34m(self, *args, **kwargs)\u001b[0m\n\u001b[1;32m    118\u001b[0m \u001b[39melif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39minst \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m: f \u001b[39m=\u001b[39m MethodType(f, \u001b[39mself\u001b[39m\u001b[39m.\u001b[39minst)\n\u001b[1;32m    119\u001b[0m \u001b[39melif\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mowner \u001b[39mis\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39mNone\u001b[39;00m: f \u001b[39m=\u001b[39m MethodType(f, \u001b[39mself\u001b[39m\u001b[39m.\u001b[39mowner)\n\u001b[0;32m--> 120\u001b[0m \u001b[39mreturn\u001b[39;00m f(\u001b[39m*\u001b[39;49margs, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mkwargs)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/vision/core.py:125\u001b[0m, in \u001b[0;36mPILBase.create\u001b[0;34m(cls, fn, **kwargs)\u001b[0m\n\u001b[1;32m    123\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39misinstance\u001b[39m(fn,\u001b[39mbytes\u001b[39m): fn \u001b[39m=\u001b[39m io\u001b[39m.\u001b[39mBytesIO(fn)\n\u001b[1;32m    124\u001b[0m \u001b[39mif\u001b[39;00m \u001b[39misinstance\u001b[39m(fn,Image\u001b[39m.\u001b[39mImage) \u001b[39mand\u001b[39;00m \u001b[39mnot\u001b[39;00m \u001b[39misinstance\u001b[39m(fn,\u001b[39mcls\u001b[39m): \u001b[39mreturn\u001b[39;00m \u001b[39mcls\u001b[39m(fn)\n\u001b[0;32m--> 125\u001b[0m \u001b[39mreturn\u001b[39;00m \u001b[39mcls\u001b[39m(load_image(fn, \u001b[39m*\u001b[39;49m\u001b[39m*\u001b[39;49mmerge(\u001b[39mcls\u001b[39;49m\u001b[39m.\u001b[39;49m_open_args, kwargs)))\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/fastai/vision/core.py:98\u001b[0m, in \u001b[0;36mload_image\u001b[0;34m(fn, mode)\u001b[0m\n\u001b[1;32m     96\u001b[0m \u001b[39mdef\u001b[39;00m \u001b[39mload_image\u001b[39m(fn, mode\u001b[39m=\u001b[39m\u001b[39mNone\u001b[39;00m):\n\u001b[1;32m     97\u001b[0m     \u001b[39m\"\u001b[39m\u001b[39mOpen and load a `PIL.Image` and convert to `mode`\u001b[39m\u001b[39m\"\u001b[39m\n\u001b[0;32m---> 98\u001b[0m     im \u001b[39m=\u001b[39m Image\u001b[39m.\u001b[39;49mopen(fn)\n\u001b[1;32m     99\u001b[0m     im\u001b[39m.\u001b[39mload()\n\u001b[1;32m    100\u001b[0m     im \u001b[39m=\u001b[39m im\u001b[39m.\u001b[39m_new(im\u001b[39m.\u001b[39mim)\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/PIL/Image.py:3236\u001b[0m, in \u001b[0;36mopen\u001b[0;34m(fp, mode, formats)\u001b[0m\n\u001b[1;32m   3233\u001b[0m     fp \u001b[39m=\u001b[39m io\u001b[39m.\u001b[39mBytesIO(fp\u001b[39m.\u001b[39mread())\n\u001b[1;32m   3234\u001b[0m     exclusive_fp \u001b[39m=\u001b[39m \u001b[39mTrue\u001b[39;00m\n\u001b[0;32m-> 3236\u001b[0m prefix \u001b[39m=\u001b[39m fp\u001b[39m.\u001b[39;49mread(\u001b[39m16\u001b[39m)\n\u001b[1;32m   3238\u001b[0m preinit()\n\u001b[1;32m   3240\u001b[0m accept_warnings \u001b[39m=\u001b[39m []\n",
+      "File \u001b[0;32m/opt/homebrew/Caskroom/mambaforge/base/lib/python3.10/site-packages/PIL/Image.py:529\u001b[0m, in \u001b[0;36mImage.__getattr__\u001b[0;34m(self, name)\u001b[0m\n\u001b[1;32m    527\u001b[0m     deprecate(\u001b[39m\"\u001b[39m\u001b[39mImage categories\u001b[39m\u001b[39m\"\u001b[39m, \u001b[39m10\u001b[39m, \u001b[39m\"\u001b[39m\u001b[39mis_animated\u001b[39m\u001b[39m\"\u001b[39m, plural\u001b[39m=\u001b[39m\u001b[39mTrue\u001b[39;00m)\n\u001b[1;32m    528\u001b[0m     \u001b[39mreturn\u001b[39;00m \u001b[39mself\u001b[39m\u001b[39m.\u001b[39m_category\n\u001b[0;32m--> 529\u001b[0m \u001b[39mraise\u001b[39;00m \u001b[39mAttributeError\u001b[39;00m(name)\n",
+      "\u001b[0;31mAttributeError\u001b[0m: read"
+     ]
+    }
+   ],
+   "source": [
+    "#|export\n",
+    "img = PILImage.create(uploader.data[0])\n",
+    "is_cat,_,probs = learn.predict(img)\n",
+    "print(f\"Is this a cat?: {is_cat}.\")\n",
+    "print(f\"Probability it's a cat: {probs[1].item():.6f}\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "base",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.9"
+  },
+  "orig_nbformat": 4,
+  "vscode": {
+   "interpreter": {
+    "hash": "59f3145cc67fcda0343c2852f1f97113a2e6e98841e887156424448e7071ad54"
+   }
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}

lesson02/requirements.txt

@@ -0,0 +1,10 @@
+# local package
+#-e .
+
+# external requirements
+click
+Sphinx
+coverage
+awscli
+flake8
+python-dotenv>=0.5.1

lesson02/setup.py

@@ -0,0 +1,10 @@
+from setuptools import find_packages, setup
+
+setup(
+    name='src',
+    packages=find_packages(),
+    version='0.1.0',
+    description='Lesson02 fastai',
+    author='Byron Wright',
+    license='MIT',
+)

lesson02/src/app.py

@@ -0,0 +1,8 @@
+import gradio as gr
+
+
+def greet(name):
+    return "Hello " + name + "!!"
+
+iface = gr.Interface(fn=greet, inputs="text", outputs="text")
+iface.launch()

lesson02/src/data/make_dataset.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+import logging
+from pathlib import Path
+
+import click
+from dotenv import find_dotenv, load_dotenv
+
+
+@click.command()
+@click.argument('input_filepath', type=click.Path(exists=True))
+@click.argument('output_filepath', type=click.Path())
+def main(input_filepath, output_filepath):
+    """ Runs data processing scripts to turn raw data from (../raw) into
+        cleaned data ready to be analyzed (saved in ../processed).
+    """
+    logger = logging.getLogger(__name__)
+    logger.info('making final data set from raw data')
+
+
+if __name__ == '__main__':
+    log_fmt = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+    logging.basicConfig(level=logging.INFO, format=log_fmt)
+
+    # not used in this stub but often useful for finding various files
+    project_dir = Path(__file__).resolve().parents[2]
+
+    # find .env automagically by walking up directories until it's found, then
+    # load up the .env entries as environment variables
+    load_dotenv(find_dotenv())
+
+    main()

lesson02/src/fastai-export.py

@@ -0,0 +1,42 @@
+# %%
+#id first_training
+#caption Results from the first training
+# CLICK ME
+#|export
+from fastai.vision.all import *
+
+path = untar_data(URLs.PETS)/'images'
+
+def is_cat(x): return x[0].isupper()
+dls = ImageDataLoaders.from_name_func(
+    path, get_image_files(path), 
+    valid_pct=0.2, 
+    seed=42,
+    label_func=is_cat, 
+    item_tfms=Resize(224)
+)
+
+learn = vision_learner(dls, resnet34, metrics=error_rate)
+learn.fine_tune(1)
+
+# %%
+
+from IPython.display import display
+from ipywidgets import widgets
+
+uploader = widgets.FileUpload()
+display(uploader)
+
+# %%
+#|export
+# For the book, we can't actually click an upload button, so we fake it
+uploader = SimpleNamespace(data = ['data/interim/th-1.webp'])
+
+# %%
+#|export
+img = PILImage.create(uploader.data[0])
+is_cat,_,probs = learn.predict(img)
+print(f"Is this a cat?: {is_cat}.")
+print(f"Probability it's a cat: {probs[1].item():.6f}")
+
+

lesson02/test_environment.py

@@ -0,0 +1,27 @@
+import sys
+
+REQUIRED_PYTHON = "python3"
+
+
+def main():
+    system_major = sys.version_info.major
+    if REQUIRED_PYTHON == "python":
+        required_major = 2
+    elif REQUIRED_PYTHON == "python3":
+        required_major = 3
+    else:
+        raise ValueError(
+            # .format(REQUIRED_PYTHON)
+            f"Unrecognized python interpreter: {REQUIRED_PYTHON}"
+        )
+
+    if system_major != required_major:
+        raise TypeError(
+            f"This project requires Python {required_major}. Found: Python {sys.version}"
+        )
+    else:
+        print(">>> Development environment passes all tests!")
+
+
+if __name__ == '__main__':
+    main()

lesson02/tox.ini

@@ -0,0 +1,3 @@
+[flake8]
+max-line-length = 79
+max-complexity = 10