#
# Cython Top Level
#
from __future__ import absolute_import
import os
import re
import sys
import io
if sys.version_info[:2] < (2, 6) or (3, 0) <= sys.version_info[:2] < (3, 3):
sys.stderr.write("Sorry, Cython requires Python 2.6+ or 3.3+, found %d.%d\n" % tuple(sys.version_info[:2]))
sys.exit(1)
try:
from __builtin__ import basestring
except ImportError:
basestring = str
# Do not import Parsing here, import it when needed, because Parsing imports
# Nodes, which globally needs debug command line options initialized to set a
# conditional metaclass. These options are processed by CmdLine called from
# main() in this file.
# import Parsing
from . import Errors
from .StringEncoding import EncodedString
from .Scanning import PyrexScanner, FileSourceDescriptor
from .Errors import PyrexError, CompileError, error, warning
from .Symtab import ModuleScope
from .. import Utils
from . import Options
from . import Version # legacy import needed by old PyTables versions
version = Version.version # legacy attribute - use "Cython.__version__" instead
module_name_pattern = re.compile(r"[A-Za-z_][A-Za-z0-9_]*(\.[A-Za-z_][A-Za-z0-9_]*)*$")
verbose = 0
standard_include_path = os.path.abspath(os.path.join(os.path.dirname(__file__),
os.path.pardir, 'Includes'))
class CompilationData(object):
# Bundles the information that is passed from transform to transform.
# (For now, this is only)
# While Context contains every pxd ever loaded, path information etc.,
# this only contains the data related to a single compilation pass
#
# pyx ModuleNode Main code tree of this compilation.
# pxds {string : ModuleNode} Trees for the pxds used in the pyx.
# codewriter CCodeWriter Where to output final code.
# options CompilationOptions
# result CompilationResult
pass
class Context(object):
# This class encapsulates the context needed for compiling
# one or more Cython implementation files along with their
# associated and imported declaration files. It includes
# the root of the module import namespace and the list
# of directories to search for include files.
#
# modules {string : ModuleScope}
# include_directories [string]
# future_directives [object]
# language_level int currently 2 or 3 for Python 2/3
cython_scope = None
language_level = None # warn when not set but default to Py2
def __init__(self, include_directories, compiler_directives, cpp=False,
language_level=None, options=None):
# cython_scope is a hack, set to False by subclasses, in order to break
# an infinite loop.
# Better code organization would fix it.
from . import Builtin, CythonScope
self.modules = {"__builtin__" : Builtin.builtin_scope}
self.cython_scope = CythonScope.create_cython_scope(self)
self.modules["cython"] = self.cython_scope
self.include_directories = include_directories
self.future_directives = set()
self.compiler_directives = compiler_directives
self.cpp = cpp
self.options = options
self.pxds = {} # full name -> node tree
self._interned = {} # (type(value), value, *key_args) -> interned_value
if language_level is not None:
self.set_language_level(language_level)
self.gdb_debug_outputwriter = None
def set_language_level(self, level):
from .Future import print_function, unicode_literals, absolute_import, division
future_directives = set()
if level == '3str':
level = 3
else:
level = int(level)
if level >= 3:
future_directives.add(unicode_literals)
if level >= 3:
future_directives.update([print_function, absolute_import, division])
self.language_level = level
self.future_directives = future_directives
if level >= 3:
self.modules['builtins'] = self.modules['__builtin__']
def intern_ustring(self, value, encoding=None):
key = (EncodedString, value, encoding)
try:
return self._interned[key]
except KeyError:
pass
value = EncodedString(value)
if encoding:
value.encoding = encoding
self._interned[key] = value
return value
def intern_value(self, value, *key):
key = (type(value), value) + key
try:
return self._interned[key]
except KeyError:
pass
self._interned[key] = value
return value
# pipeline creation functions can now be found in Pipeline.py
def process_pxd(self, source_desc, scope, module_name):
from . import Pipeline
if isinstance(source_desc, FileSourceDescriptor) and source_desc._file_type == 'pyx':
source = CompilationSource(source_desc, module_name, os.getcwd())
result_sink = create_default_resultobj(source, self.options)
pipeline = Pipeline.create_pyx_as_pxd_pipeline(self, result_sink)
result = Pipeline.run_pipeline(pipeline, source)
else:
pipeline = Pipeline.create_pxd_pipeline(self, scope, module_name)
result = Pipeline.run_pipeline(pipeline, source_desc)
return result
def nonfatal_error(self, exc):
return Errors.report_error(exc)
def find_module(self, module_name, relative_to=None, pos=None, need_pxd=1,
absolute_fallback=True):
# Finds and returns the module scope corresponding to
# the given relative or absolute module name. If this
# is the first time the module has been requested, finds
# the corresponding .pxd file and process it.
# If relative_to is not None, it must be a module scope,
# and the module will first be searched for relative to
# that module, provided its name is not a dotted name.
debug_find_module = 0
if debug_find_module:
print("Context.find_module: module_name = %s, relative_to = %s, pos = %s, need_pxd = %s" % (
module_name, relative_to, pos, need_pxd))
scope = None
pxd_pathname = None
if relative_to:
if module_name:
# from .module import ...
qualified_name = relative_to.qualify_name(module_name)
else:
# from . import ...
qualified_name = relative_to.qualified_name
scope = relative_to
relative_to = None
else:
qualified_name = module_name
if not module_name_pattern.match(qualified_name):
raise CompileError(pos or (module_name, 0, 0),
"'%s' is not a valid module name" % module_name)
if relative_to:
if debug_find_module:
print("...trying relative import")
scope = relative_to.lookup_submodule(module_name)
if not scope:
pxd_pathname = self.find_pxd_file(qualified_name, pos)
if pxd_pathname:
scope = relative_to.find_submodule(module_name)
if not scope:
if debug_find_module:
print("...trying absolute import")
if absolute_fallback:
qualified_name = module_name
scope = self
for name in qualified_name.split("."):
scope = scope.find_submodule(name)
if debug_find_module:
print("...scope = %s" % scope)
if not scope.pxd_file_loaded:
if debug_find_module:
print("...pxd not loaded")
if not pxd_pathname:
if debug_find_module:
print("...looking for pxd file")
# Only look in sys.path if we are explicitly looking
# for a .pxd file.
pxd_pathname = self.find_pxd_file(qualified_name, pos, sys_path=need_pxd)
if debug_find_module:
print("......found %s" % pxd_pathname)
if not pxd_pathname and need_pxd:
# Set pxd_file_loaded such that we don't need to
# look for the non-existing pxd file next time.
scope.pxd_file_loaded = True
package_pathname = self.search_include_directories(qualified_name, ".py", pos)
if package_pathname and package_pathname.endswith('__init__.py'):
pass
else:
error(pos, "'%s.pxd' not found" % qualified_name.replace('.', os.sep))
if pxd_pathname:
scope.pxd_file_loaded = True
try:
if debug_find_module:
print("Context.find_module: Parsing %s" % pxd_pathname)
rel_path = module_name.replace('.', os.sep) + os.path.splitext(pxd_pathname)[1]
if not pxd_pathname.endswith(rel_path):
rel_path = pxd_pathname # safety measure to prevent printing incorrect paths
source_desc = FileSourceDescriptor(pxd_pathname, rel_path)
err, result = self.process_pxd(source_desc, scope, qualified_name)
if err:
raise err
(pxd_codenodes, pxd_scope) = result
self.pxds[module_name] = (pxd_codenodes, pxd_scope)
except CompileError:
pass
return scope
def find_pxd_file(self, qualified_name, pos, sys_path=True):
# Search include path (and sys.path if sys_path is True) for
# the .pxd file corresponding to the given fully-qualified
# module name.
# Will find either a dotted filename or a file in a
# package directory. If a source file position is given,
# the directory containing the source file is searched first
# for a dotted filename, and its containing package root
# directory is searched first for a non-dotted filename.
pxd = self.search_include_directories(qualified_name, ".pxd", pos, sys_path=sys_path)
if pxd is None: # XXX Keep this until Includes/Deprecated is removed
if (qualified_name.startswith('python') or
qualified_name in ('stdlib', 'stdio', 'stl')):
standard_include_path = os.path.abspath(os.path.normpath(
os.path.join(os.path.dirname(__file__), os.path.pardir, 'Includes')))
deprecated_include_path = os.path.join(standard_include_path, 'Deprecated')
self.include_directories.append(deprecated_include_path)
try:
pxd = self.search_include_directories(qualified_name, ".pxd", pos)
finally:
self.include_directories.pop()
if pxd:
name = qualified_name
if name.startswith('python'):
warning(pos, "'%s' is deprecated, use 'cpython'" % name, 1)
elif name in ('stdlib', 'stdio'):
warning(pos, "'%s' is deprecated, use 'libc.%s'" % (name, name), 1)
elif name in ('stl'):
warning(pos, "'%s' is deprecated, use 'libcpp.*.*'" % name, 1)
if pxd is None and Options.cimport_from_pyx:
return self.find_pyx_file(qualified_name, pos)
return pxd
def find_pyx_file(self, qualified_name, pos):
# Search include path for the .pyx file corresponding to the
# given fully-qualified module name, as for find_pxd_file().
return self.search_include_directories(qualified_name, ".pyx", pos)
def find_include_file(self, filename, pos):
# Search list of include directories for filename.
# Reports an error and returns None if not found.
path = self.search_include_directories(filename, "", pos,
include=True)
if not path:
error(pos, "'%s' not found" % filename)
return path
def search_include_directories(self, qualified_name, suffix, pos,
include=False, sys_path=False):
include_dirs = self.include_directories
if sys_path:
include_dirs = include_dirs + sys.path
# include_dirs must be hashable for caching in @cached_function
include_dirs = tuple(include_dirs + [standard_include_path])
return search_include_directories(include_dirs, qualified_name,
suffix, pos, include)
def find_root_package_dir(self, file_path):
return Utils.find_root_package_dir(file_path)
def check_package_dir(self, dir, package_names):
return Utils.check_package_dir(dir, tuple(package_names))
def c_file_out_of_date(self, source_path, output_path):
if not os.path.exists(output_path):
return 1
c_time = Utils.modification_time(output_path)
if Utils.file_newer_than(source_path, c_time):
return 1
pos = [source_path]
pxd_path = Utils.replace_suffix(source_path, ".pxd")
if os.path.exists(pxd_path) and Utils.file_newer_than(pxd_path, c_time):
return 1
for kind, name in self.read_dependency_file(source_path):
if kind == "cimport":
dep_path = self.find_pxd_file(name, pos)
elif kind == "include":
dep_path = self.search_include_directories(name, pos)
else:
continue
if dep_path and Utils.file_newer_than(dep_path, c_time):
return 1
return 0
def find_cimported_module_names(self, source_path):
return [ name for kind, name in self.read_dependency_file(source_path)
if kind == "cimport" ]
def is_package_dir(self, dir_path):
return Utils.is_package_dir(dir_path)
def read_dependency_file(self, source_path):
dep_path = Utils.replace_suffix(source_path, ".dep")
if os.path.exists(dep_path):
f = open(dep_path, "rU")
chunks = [ line.strip().split(" ", 1)
for line in f.readlines()
if " " in line.strip() ]
f.close()
return chunks
else:
return ()
def lookup_submodule(self, name):
# Look up a top-level module. Returns None if not found.
return self.modules.get(name, None)
def find_submodule(self, name):
# Find a top-level module, creating a new one if needed.
scope = self.lookup_submodule(name)
if not scope:
scope = ModuleScope(name,
parent_module = None, context = self)
self.modules[name] = scope
return scope
def parse(self, source_desc, scope, pxd, full_module_name):
if not isinstance(source_desc, FileSourceDescriptor):
raise RuntimeError("Only file sources for code supported")
source_filename = source_desc.filename
scope.cpp = self.cpp
# Parse the given source file and return a parse tree.
num_errors = Errors.num_errors
try:
with Utils.open_source_file(source_filename) as f:
from . import Parsing
s = PyrexScanner(f, source_desc, source_encoding = f.encoding,
scope = scope, context = self)
tree = Parsing.p_module(s, pxd, full_module_name)
if self.options.formal_grammar:
try:
from ..Parser import ConcreteSyntaxTree
except ImportError:
raise RuntimeError(
"Formal grammar can only be used with compiled Cython with an available pgen.")
ConcreteSyntaxTree.p_module(source_filename)
except UnicodeDecodeError as e:
#import traceback
#traceback.print_exc()
raise self._report_decode_error(source_desc, e)
if Errors.num_errors > num_errors:
raise CompileError()
return tree
def _report_decode_error(self, source_desc, exc):
msg = exc.args[-1]
position = exc.args[2]
encoding = exc.args[0]
line = 1
column = idx = 0
with io.open(source_desc.filename, "r", encoding='iso8859-1', newline='') as f:
for line, data in enumerate(f, 1):
idx += len(data)
if idx >= position:
column = position - (idx - len(data)) + 1
break
return error((source_desc, line, column),
"Decoding error, missing or incorrect coding=<encoding-name> "
"at top of source (cannot decode with encoding %r: %s)" % (encoding, msg))
def extract_module_name(self, path, options):
# Find fully_qualified module name from the full pathname
# of a source file.
dir, filename = os.path.split(path)
module_name, _ = os.path.splitext(filename)
if "." in module_name:
return module_name
names = [module_name]
while self.is_package_dir(dir):
parent, package_name = os.path.split(dir)
if parent == dir:
break
names.append(package_name)
dir = parent
names.reverse()
return ".".join(names)
def setup_errors(self, options, result):
Errors.reset() # clear any remaining error state
if options.use_listing_file:
path = result.listing_file = Utils.replace_suffix(result.main_source_file, ".lis")
else:
path = None
Errors.open_listing_file(path=path,
echo_to_stderr=options.errors_to_stderr)
def teardown_errors(self, err, options, result):
source_desc = result.compilation_source.source_desc
if not isinstance(source_desc, FileSourceDescriptor):
raise RuntimeError("Only file sources for code supported")
Errors.close_listing_file()
result.num_errors = Errors.num_errors
if result.num_errors > 0:
err = True
if err and result.c_file:
try:
Utils.castrate_file(result.c_file, os.stat(source_desc.filename))
except EnvironmentError:
pass
result.c_file = None
def get_output_filename(source_filename, cwd, options):
if options.cplus:
c_suffix = ".cpp"
else:
c_suffix = ".c"
suggested_file_name = Utils.replace_suffix(source_filename, c_suffix)
if options.output_file:
out_path = os.path.join(cwd, options.output_file)
if os.path.isdir(out_path):
return os.path.join(out_path, os.path.basename(suggested_file_name))
else:
return out_path
else:
return suggested_file_name
def create_default_resultobj(compilation_source, options):
result = CompilationResult()
result.main_source_file = compilation_source.source_desc.filename
result.compilation_source = compilation_source
source_desc = compilation_source.source_desc
result.c_file = get_output_filename(source_desc.filename,
compilation_source.cwd, options)
result.embedded_metadata = options.embedded_metadata
return result
def run_pipeline(source, options, full_module_name=None, context=None):
from . import Pipeline
source_ext = os.path.splitext(source)[1]
options.configure_language_defaults(source_ext[1:]) # py/pyx
if context is None:
context = options.create_context()
# Set up source object
cwd = os.getcwd()
abs_path = os.path.abspath(source)
full_module_name = full_module_name or context.extract_module_name(source, options)
Utils.raise_error_if_module_name_forbidden(full_module_name)
if options.relative_path_in_code_position_comments:
rel_path = full_module_name.replace('.', os.sep) + source_ext
if not abs_path.endswith(rel_path):
rel_path = source # safety measure to prevent printing incorrect paths
else:
rel_path = abs_path
source_desc = FileSourceDescriptor(abs_path, rel_path)
source = CompilationSource(source_desc, full_module_name, cwd)
# Set up result object
result = create_default_resultobj(source, options)
if options.annotate is None:
# By default, decide based on whether an html file already exists.
html_filename = os.path.splitext(result.c_file)[0] + ".html"
if os.path.exists(html_filename):
with io.open(html_filename, "r", encoding="UTF-8") as html_file:
if u'<!-- Generated by Cython' in html_file.read(100):
options.annotate = True
# Get pipeline
if source_ext.lower() == '.py' or not source_ext:
pipeline = Pipeline.create_py_pipeline(context, options, result)
else:
pipeline = Pipeline.create_pyx_pipeline(context, options, result)
context.setup_errors(options, result)
err, enddata = Pipeline.run_pipeline(pipeline, source)
context.teardown_errors(err, options, result)
return result
# ------------------------------------------------------------------------
#
# Main Python entry points
#
# ------------------------------------------------------------------------
class CompilationSource(object):
"""
Contains the data necessary to start up a compilation pipeline for
a single compilation unit.
"""
def __init__(self, source_desc, full_module_name, cwd):
self.source_desc = source_desc
self.full_module_name = full_module_name
self.cwd = cwd
class CompilationOptions(object):
r"""
See default_options at the end of this module for a list of all possible
options and CmdLine.usage and CmdLine.parse_command_line() for their
meaning.
"""
def __init__(self, defaults=None, **kw):
self.include_path = []
if defaults:
if isinstance(defaults, CompilationOptions):
defaults = defaults.__dict__
else:
defaults = default_options
options = dict(defaults)
options.update(kw)
# let's assume 'default_options' contains a value for most known compiler options
# and validate against them
unknown_options = set(options) - set(default_options)
# ignore valid options that are not in the defaults
unknown_options.difference_update(['include_path'])
if unknown_options:
message = "got unknown compilation option%s, please remove: %s" % (
's' if len(unknown_options) > 1 else '',
', '.join(unknown_options))
raise ValueError(message)
directive_defaults = Options.get_directive_defaults()
directives = dict(options['compiler_directives']) # copy mutable field
# check for invalid directives
unknown_directives = set(directives) - set(directive_defaults)
if unknown_directives:
message = "got unknown compiler directive%s: %s" % (
's' if len(unknown_directives) > 1 else '',
', '.join(unknown_directives))
raise ValueError(message)
options['compiler_directives'] = directives
if directives.get('np_pythran', False) and not options['cplus']:
import warnings
warnings.warn("C++ mode forced when in Pythran mode!")
options['cplus'] = True
if 'language_level' in directives and 'language_level' not in kw:
options['language_level'] = directives['language_level']
elif not options.get('language_level'):
options['language_level'] = directive_defaults.get('language_level')
if 'formal_grammar' in directives and 'formal_grammar' not in kw:
options['formal_grammar'] = directives['formal_grammar']
if options['cache'] is True:
options['cache'] = os.path.join(Utils.get_cython_cache_dir(), 'compiler')
self.__dict__.update(options)
def configure_language_defaults(self, source_extension):
if source_extension == 'py':
if self.compiler_directives.get('binding') is None:
self.compiler_directives['binding'] = True
def create_context(self):
return Context(self.include_path, self.compiler_directives,
self.cplus, self.language_level, options=self)
def get_fingerprint(self):
r"""
Return a string that contains all the options that are relevant for cache invalidation.
"""
# Collect only the data that can affect the generated file(s).
data = {}
for key, value in self.__dict__.items():
if key in ['show_version', 'errors_to_stderr', 'verbose', 'quiet']:
# verbosity flags have no influence on the compilation result
continue
elif key in ['output_file', 'output_dir']:
# ignore the exact name of the output file
continue
elif key in ['timestamps']:
# the cache cares about the content of files, not about the timestamps of sources
continue
elif key in ['cache']:
# hopefully caching has no influence on the compilation result
continue
elif key in ['compiler_directives']:
# directives passed on to the C compiler do not influence the generated C code
continue
elif key in ['include_path']:
# this path changes which headers are tracked as dependencies,
# it has no influence on the generated C code
continue
elif key in ['working_path']:
# this path changes where modules and pxd files are found;
# their content is part of the fingerprint anyway, their
# absolute path does not matter
continue
elif key in ['create_extension']:
# create_extension() has already mangled the options, e.g.,
# embedded_metadata, when the fingerprint is computed so we
# ignore it here.
continue
elif key in ['build_dir']:
# the (temporary) directory where we collect dependencies
# has no influence on the C output
continue
elif key in ['use_listing_file', 'generate_pxi', 'annotate', 'annotate_coverage_xml']:
# all output files are contained in the cache so the types of
# files generated must be part of the fingerprint
data[key] = value
elif key in ['formal_grammar', 'evaluate_tree_assertions']:
# these bits can change whether compilation to C passes/fails
data[key] = value
elif key in ['embedded_metadata', 'emit_linenums', 'c_line_in_traceback', 'gdb_debug', 'relative_path_in_code_position_comments']:
# the generated code contains additional bits when these are set
data[key] = value
elif key in ['cplus', 'language_level', 'compile_time_env', 'np_pythran']:
# assorted bits that, e.g., influence the parser
data[key] = value
elif key == ['capi_reexport_cincludes']:
if self.capi_reexport_cincludes:
# our caching implementation does not yet include fingerprints of all the header files
raise NotImplementedError('capi_reexport_cincludes is not compatible with Cython caching')
elif key == ['common_utility_include_dir']:
if self.common_utility_include_dir:
raise NotImplementedError('common_utility_include_dir is not compatible with Cython caching yet')
else:
# any unexpected option should go into the fingerprint; it's better
# to recompile than to return incorrect results from the cache.
data[key] = value
def to_fingerprint(item):
r"""
Recursively turn item into a string, turning dicts into lists with
deterministic ordering.
"""
if isinstance(item, dict):
item = sorted([(repr(key), to_fingerprint(value)) for key, value in item.items()])
return repr(item)
return to_fingerprint(data)
class CompilationResult(object):
"""
Results from the Cython compiler:
c_file string or None The generated C source file
h_file string or None The generated C header file
i_file string or None The generated .pxi file
api_file string or None The generated C API .h file
listing_file string or None File of error messages
object_file string or None Result of compiling the C file
extension_file string or None Result of linking the object file
num_errors integer Number of compilation errors
compilation_source CompilationSource
"""
def __init__(self):
self.c_file = None
self.h_file = None
self.i_file = None
self.api_file = None
self.listing_file = None
self.object_file = None
self.extension_file = None
self.main_source_file = None
class CompilationResultSet(dict):
"""
Results from compiling multiple Pyrex source files. A mapping
from source file paths to CompilationResult instances. Also
has the following attributes:
num_errors integer Total number of compilation errors
"""
num_errors = 0
def add(self, source, result):
self[source] = result
self.num_errors += result.num_errors
def compile_single(source, options, full_module_name = None):
"""
compile_single(source, options, full_module_name)
Compile the given Pyrex implementation file and return a CompilationResult.
Always compiles a single file; does not perform timestamp checking or
recursion.
"""
return run_pipeline(source, options, full_module_name)
def compile_multiple(sources, options):
"""
compile_multiple(sources, options)
Compiles the given sequence of Pyrex implementation files and returns
a CompilationResultSet. Performs timestamp checking and/or recursion
if these are specified in the options.
"""
# run_pipeline creates the context
# context = options.create_context()
sources = [os.path.abspath(source) for source in sources]
processed = set()
results = CompilationResultSet()
timestamps = options.timestamps
verbose = options.verbose
context = None
cwd = os.getcwd()
for source in sources:
if source not in processed:
if context is None:
context = options.create_context()
output_filename = get_output_filename(source, cwd, options)
out_of_date = context.c_file_out_of_date(source, output_filename)
if (not timestamps) or out_of_date:
if verbose:
sys.stderr.write("Compiling %s\n" % source)
result = run_pipeline(source, options, context=context)
results.add(source, result)
# Compiling multiple sources in one context doesn't quite
# work properly yet.
context = None
processed.add(source)
return results
def compile(source, options = None, full_module_name = None, **kwds):
"""
compile(source [, options], [, <option> = <value>]...)
Compile one or more Pyrex implementation files, with optional timestamp
checking and recursing on dependencies. The source argument may be a string
or a sequence of strings. If it is a string and no recursion or timestamp
checking is requested, a CompilationResult is returned, otherwise a
CompilationResultSet is returned.
"""
options = CompilationOptions(defaults = options, **kwds)
if isinstance(source, basestring) and not options.timestamps:
return compile_single(source, options, full_module_name)
else:
return compile_multiple(source, options)
@Utils.cached_function
def search_include_directories(dirs, qualified_name, suffix, pos, include=False):
"""
Search the list of include directories for the given file name.
If a source file position is given, first searches the directory
containing that file. Returns None if not found, but does not
report an error.
The 'include' option will disable package dereferencing.
"""
if pos:
file_desc = pos[0]
if not isinstance(file_desc, FileSourceDescriptor):
raise RuntimeError("Only file sources for code supported")
if include:
dirs = (os.path.dirname(file_desc.filename),) + dirs
else:
dirs = (Utils.find_root_package_dir(file_desc.filename),) + dirs
dotted_filename = qualified_name
if suffix:
dotted_filename += suffix
if not include:
names = qualified_name.split('.')
package_names = tuple(names[:-1])
module_name = names[-1]
module_filename = module_name + suffix
package_filename = "__init__" + suffix
for dirname in dirs:
path = os.path.join(dirname, dotted_filename)
if os.path.exists(path):
return path
if not include:
package_dir = Utils.check_package_dir(dirname, package_names)
if package_dir is not None:
path = os.path.join(package_dir, module_filename)
if os.path.exists(path):
return path
path = os.path.join(package_dir, module_name,
package_filename)
if os.path.exists(path):
return path
return None
# ------------------------------------------------------------------------
#
# Main command-line entry point
#
# ------------------------------------------------------------------------
def setuptools_main():
return main(command_line = 1)
def main(command_line = 0):
args = sys.argv[1:]
any_failures = 0
if command_line:
from .CmdLine import parse_command_line
options, sources = parse_command_line(args)
else:
options = CompilationOptions(default_options)
sources = args
if options.show_version:
sys.stderr.write("Cython version %s\n" % version)
if options.working_path!="":
os.chdir(options.working_path)
try:
result = compile(sources, options)
if result.num_errors > 0:
any_failures = 1
except (EnvironmentError, PyrexError) as e:
sys.stderr.write(str(e) + '\n')
any_failures = 1
if any_failures:
sys.exit(1)
# ------------------------------------------------------------------------
#
# Set the default options depending on the platform
#
# ------------------------------------------------------------------------
default_options = dict(
show_version = 0,
use_listing_file = 0,
errors_to_stderr = 1,
cplus = 0,
output_file = None,
annotate = None,
annotate_coverage_xml = None,
generate_pxi = 0,
capi_reexport_cincludes = 0,
working_path = "",
timestamps = None,
verbose = 0,
quiet = 0,
compiler_directives = {},
embedded_metadata = {},
evaluate_tree_assertions = False,
emit_linenums = False,
relative_path_in_code_position_comments = True,
c_line_in_traceback = True,
language_level = None, # warn but default to 2
formal_grammar = False,
gdb_debug = False,
compile_time_env = None,
common_utility_include_dir = None,
output_dir=None,
build_dir=None,
cache=None,
create_extension=None,
np_pythran=False
)