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How to sum elements in functional way,"[sum(l[:i]) for i, _ in enumerate(l)]" |
Python Regex Split Keeps Split Pattern Characters,"""""""Docs/src/Scripts/temp"""""".replace('/', '/\x00/').split('\x00')" |
Shuffle columns of an array with Numpy,np.random.shuffle(np.transpose(r)) |
Copy all values in a column to a new column in a pandas dataframe,df['D'] = df['B'] |
Find a value within nested json dictionary in python,list(data['A']['B'].values())[0]['maindata'][0]['Info'] |
True for all characters of a string,all(predicate(x) for x in string) |
How to determine number of files on a drive with Python?,os.statvfs('/').f_files - os.statvfs('/').f_ffree |
how to get a single result from a SQLite query in python?,cursor.fetchone()[0] |
How to convert a string list into an integer in python,"user_list = [int(number) for number in user_input.split(',')]" |
How to convert a string list into an integer in python,"[int(s) for s in user.split(',')]" |
Sorting a Python list by two criteria,"sorted(list, key=lambda x: (x[0], -x[1]))" |
"How to sort a list of objects , based on an attribute of the objects?","ut.sort(key=cmpfun, reverse=True)" |
"How to sort a list of objects , based on an attribute of the objects?","ut.sort(key=lambda x: x.count, reverse=True)" |
"How to sort a list of objects , based on an attribute of the objects?","ut.sort(key=lambda x: x.count, reverse=True)" |
Click a href button with selenium and python?,driver.find_element_by_partial_link_text('Send').click() |
Click a href button with selenium and python?,driver.findElement(By.linkText('Send InMail')).click() |
Click a href button with selenium and python?,driver.find_element_by_link_text('Send InMail').click() |
Casting an int to a string in Python,'ME' + str(i) |
Sorting data in DataFrame Pandas,"df.sort_values(['System_num', 'Dis'])" |
Prepend a line to an existing file in Python,"open('outfile', 'w').write('#test firstline\n' + open('infile').read())" |
Python sort a List by length of value in tuple,"l.sort(key=lambda t: len(t[1]), reverse=True)" |
Split by suffix with Python regular expression,"re.findall('\\b(\\w+)d\\b', s)" |
python's re: return True if regex contains in the string,"bool(re.search('ba[rzd]', 'foobarrrr'))" |
Removing duplicates in lists,list(set(t)) |
Removing duplicates in lists,list(set(source_list)) |
Removing duplicates in lists,list(OrderedDict.fromkeys('abracadabra')) |
How to make List from Numpy Matrix in Python,numpy.array(a).reshape(-1).tolist() |
How to make List from Numpy Matrix in Python,numpy.array(a)[0].tolist() |
Beautifulsoup - nextSibling,print(soup.find(text='Address:').findNext('td').contents[0]) |
Converting lists of tuples to strings Python,""""""" """""".join([('%d@%d' % t) for t in l])" |
Converting lists of tuples to strings Python,""""""" """""".join([('%d@%d' % (t[0], t[1])) for t in l])" |
Splinter or Selenium: Can we get current html page after clicking a button?,driver.execute_script('return document.documentElement.outerHTML;') |
Find a specific pattern (regular expression) in a list of strings (Python),"[i for i in teststr if re.search('\\d+[xX]', i)]" |
Selecting with complex criteria from pandas.DataFrame,df['A'][(df['B'] > 50) & (df['C'] == 900)] |
How to sort dictionaries by keys in Python,sorted(o.items()) |
How to sort dictionaries by keys in Python,sorted(d) |
How to sort dictionaries by keys in Python,sorted(d.items()) |
convert strings into integers,int('1') |
convert strings into integers,int() |
convert strings into integers,"T2 = [map(int, x) for x in T1]" |
How to call a shell script from python code?,subprocess.call(['./test.sh']) |
How to call a shell script from python code?,subprocess.call(['notepad']) |
Interleaving two lists in Python,"[val for pair in zip(l1, l2) for val in pair]" |
Base64 encoding in Python 3,encoded = base64.b64encode('data to be encoded') |
Base64 encoding in Python 3,encoded = 'data to be encoded'.encode('ascii') |
Parsing CSV / tab-delimited txt file with Python,"lol = list(csv.reader(open('text.txt', 'rb'), delimiter='\t'))" |
Python - Access object attributes as in a dictionary,"getattr(my_object, my_str)" |
list of dicts to/from dict of lists,"print(dict(zip(LD[0], zip(*[list(d.values()) for d in LD]))))" |
How do I sum the first value in each tuple in a list of tuples in Python?,sum([pair[0] for pair in list_of_pairs]) |
Convert unicode string dictionary into dictionary in python,"d = ast.literal_eval(""{'code1':1,'code2':1}"")" |
Find all words in a string that start with the $ sign in Python,[word for word in mystring.split() if word.startswith('$')] |
How to remove any URL within a string in Python,"text = re.sub('^https?:\\/\\/.*[\\r\\n]*', '', text, flags=re.MULTILINE)" |
How to find all elements in a numpy 2-dimensional array that match a certain list?,"np.where(np.in1d(A, [1, 3, 4]).reshape(A.shape), A, 0)" |
Calculate mean across dimension in a 2D array,"np.mean(a, axis=1)" |
Running R script from python,"subprocess.call(['/usr/bin/Rscript', '--vanilla', '/pathto/MyrScript.r'])" |
Running R script from python,"subprocess.call('/usr/bin/Rscript --vanilla /pathto/MyrScript.r', shell=True)" |
How to add a header to a csv file in Python?,writer.writeheader() |
Pandas Dataframe: Replacing NaN with row average,"df.fillna(df.mean(axis=1), axis=1)" |
Python: Converting Epoch time into the datetime,"time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(1347517370))" |
Calling a base class's classmethod in Python,"super(Derived, cls).do(a)" |
selecting rows in numpy ndarray based on the value of two columns,"a[np.where((a[:, (0)] == 0) * (a[:, (1)] == 1))]" |
Python regex separate space-delimited words into a list,"re.split(' +', 'hello world sample text')" |
Length of longest word in a list,"len(max(words, key=len))" |
accessing python dictionary,result[0]['from_user'] |
Save line in file to list,[line.split() for line in open('File.txt')] |
Python: Best Way to Exchange Keys with Values in a Dictionary?,"res = dict((v, k) for k, v in a.items())" |
creating a tmp file in python,"new_file = open('path/to/FILE_NAME.ext', 'w')" |
How to count distinct values in a column of a pandas group by object?,"df.groupby(['col1', 'col2'])['col3'].nunique().reset_index()" |
Check for a key pattern in a dictionary in python,any(key.startswith('EMP$$') for key in dict1) |
Check for a key pattern in a dictionary in python,"[value for key, value in list(dict1.items()) if key.startswith('EMP$$')]" |
"python, best way to convert a pandas series into a pandas dataframe","pd.DataFrame({'email': sf.index, 'list': sf.values})" |
printing tab-separated values of a list,"print('\t'.join(map(str, list)))" |
Python unicode string with UTF-8?,print('\xd0\xbf\xd1\x80\xd0\xb8'.encode('raw_unicode_escape')) |
Python unicode string with UTF-8?,'Sopet\xc3\xb3n'.encode('latin-1').decode('utf-8') |
How to adjust the quality of a resized image in Python Imaging Library?,"image = image.resize((x, y), Image.ANTIALIAS)" |
"Regex, find pattern only in middle of string","re.findall('n(?<=[^n]n)n+(?=[^n])(?i)', s)" |
how to show Percentage in python,print('{0:.0f}%'.format(1.0 / 3 * 100)) |
Sort a list of dicts by dict values,mylist.sort(key=lambda x: x['title']) |
Sort a list of dicts by dict values,l.sort(key=lambda x: x['title']) |
Sort a list of dicts by dict values,"l.sort(key=lambda x: (x['title'], x['title_url'], x['id']))" |
finding n largest differences between two lists,"heapq.nlargest(10, range(len(l1)), key=lambda i: abs(l1[i] - l2[i]))" |
Finding multiple attributes within the span tag in Python,"soup.find_all('span', {'class': 'starGryB sp'})" |
Pandas writing dataframe to other postgresql schema,"df.to_sql('test', engine, schema='a_schema')" |
Regular Expression to find brackets in a string,"brackets = re.sub('[^(){}[\\]]', '', s)" |
Removing duplicates from list of lists in Python,"list(dict((x[0], x) for x in L).values())" |
Reading a file without newlines,[line.rstrip('\n') for line in file] |
get item's position in a list,"[i for (i, x) in enumerate(testlist) if (x == 1)]" |
get item's position in a list,"[i for (i, x) in enumerate(testlist) if (x == 1)]" |
get item's position in a list,"for i in [i for (i, x) in enumerate(testlist) if (x == 1)]: |
pass" |
get item's position in a list,"for i in (i for (i, x) in enumerate(testlist) if (x == 1)): |
pass" |
get item's position in a list,"gen = (i for (i, x) in enumerate(testlist) if (x == 1))" |
get item's position in a list,print(testlist.index(element)) |
get item's position in a list,"gen = (i for (i, x) in enumerate(testlist) if (x == 1))" |
Find the maximum value in a list of tuples in Python,"max(lis, key=lambda item: item[1])[0]" |
Find the maximum value in a list of tuples in Python,"max(lis, key=itemgetter(1))[0]" |
How do I simulate a progress counter in a command line application in Python?,time.sleep(1) |
Tuple conversion to a string,""""""", """""".join('(' + ', '.join(i) + ')' for i in L)" |
Default value for field in Django model,"b = models.CharField(max_length=7, default='0000000', editable=False)" |
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