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"match a sharp, followed by letters (including accent characters) in string `str1` using a regex","hashtags = re.findall('#(\\w+)', str1, re.UNICODE)"
sorting the letters of a one worded string in python?,""""""""""""".join(sorted(x))"
how to remove square bracket from pandas dataframe,df['value'] = df['value'].str[0]
python right click menu using pygtk,button = gtk.Button('A Button')
python - split sentence after words but with maximum of n characters in result,"re.findall('.{,16}\\b', text)"
regex for location matching - python,"re.findall('(?:\\w+(?:\\s+\\w+)*,\\s)+(?:\\w+(?:\\s\\w+)*)', x)"
python lambda function to calculate factorial of a number,5 * (4 * (3 * (2 * (1 * 1))))
sum each element `x` in list `first` with element `y` at the same index in list `second`.,"[(x + y) for x, y in zip(first, second)]"
what is the most pythonic way to pop a random element from a list?,x.pop(random.randrange(len(x)))
how to write unix end of line characters in windows using python,"f = open('file.txt', 'wb')"
"annoying white space in bar chart (matplotlib, python)","plt.xlim([0, bins.size])"
add new column in pandas dataframe python,df['Col3'] = (df['Col2'] <= 1).astype(int)
finding index of an item closest to the value in a list that's not entirely sorted,"min(enumerate(a), key=lambda x: abs(x[1] - 11.5))"
check if object `a` has property 'property',"if hasattr(a, 'property'):
pass"
best way to format integer as string with leading zeros?,print('{0:05d}'.format(i))
converting from a string to boolean in python?,str2bool('stuff')
find average of every three columns in pandas dataframe,"df.resample('Q', axis=1).mean()"
count `true` values associated with key 'one' in dictionary `tadas`,sum(item['one'] for item in list(tadas.values()))
display current time,now = datetime.datetime.now().strftime('%H:%M:%S')
python: compare a list to a integer,"int(''.join(your_list), 16)"
moving x-axis to the top of a plot in matplotlib,ax.xaxis.tick_top()
get the list of figures in matplotlib,plt.savefig('figure%d.png' % i)
how to share secondary y-axis between subplots in matplotlib,plt.show()
numpy list comprehension syntax,[[X[i][j] for j in range(len(X[i]))] for i in range(len(X))]
share data using manager() in python multiprocessing module,p.start()
capturing group with findall?,"re.findall('(1(23)45)', '12345')"
how do i get the path of a the python script i am running in?,print(os.path.abspath(__file__))
python - how to add integers (possibly in a list?),total = sum([int(i) for i in cost])
python: find index of first digit in string?,"{c: i for i, c in enumerate('xdtwkeltjwlkejt7wthwk89lk') if c.isdigit()}"
how to make two markers share the same label in the legend using matplotlib?,ax.legend()
how to execute process in python where data is written to stdin?,process.stdin.close()
how to make matplotlib scatterplots transparent as a group?,plt.show()
convert list of tuples to multiple lists in python,"zip(*[(1, 2), (3, 4), (5, 6)])"
how to create a fix size list in python?,[None for _ in range(10)]
set the stdin of the process 'grep f' to be b'one\ntwo\nthree\nfour\nfive\nsix\n',"p = Popen(['grep', 'f'], stdout=PIPE, stdin=PIPE, stderr=STDOUT)
grep_stdout = p.communicate(input='one\ntwo\nthree\nfour\nfive\nsix\n')[0]"
using django models in external python script,sys.path.append('/var/www/cloudloon')
case insensitive string comparison between `string1` and `string2`,(string1.lower() == string2.lower())
how to pass variables with spaces through url in :django,"urlpatterns = patterns('kiosks.views', url('^([\\w ]+)/$', 'dashboard'))"
finding non-numeric rows in dataframe in pandas?,df.applymap(np.isreal)
how to do a less than or equal to filter in django queryset?,User.objects.filter(userprofile__level__lte=0)
convert string into date type on python,"datetime.strptime('2012-02-10', '%Y-%m-%d')"
how can i split this comma-delimited string in python?,"re.split('\\d*,\\d*', mystring)"
print multiple arguments in python,"print(('Total score for', name, 'is', score))"
python lambda with if but without else,lambda x: x if x < 3 else None
how to get the concrete class name as a string?,instance.__class__.__name__
match regex '[a-za-z][\\w-]*\\z' on string 'a\n',"re.match('[a-zA-Z][\\w-]*\\Z', 'A\n')"
what are some good ways to set a path in a multi-os supported python script,os.path.sep
numpy: get 1d array as 2d array without reshape,"np.column_stack([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5]])"
how to stop flask application without using ctrl-c,app.run()
how to get raw xml back from lxml?,etree.tostring(div)
how can i search a list in python and print at which location(s) in that list my criteria is located?,"newNums = [i for i, x in enumerate(nums) if x == 12]"
how to count result rows in pandas dataframe?,x = sum(data['cond'] == 1)
print the key of the max value in a dictionary the pythonic way,"print(max(list(d.keys()), key=lambda x: d[x]))"
converting string to tuple and adding to tuple,"ast.literal_eval('(1,2,3,4)')"
writing string to a file on a new line everytime?,f.write('text to write\n')
row-wise indexing in numpy,"A[i, j]"
update tkinter label from variable,root.mainloop()
how to extract a subset of a colormap as a new colormap in matplotlib?,plt.show()
joining pandas dataframes by column names,"pd.merge(frame_1, frame_2, left_on='county_ID', right_on='countyid')"
"how to ""fake"" a module safely in a python package",__init__.py
how to adjust the size of matplotlib legend box?,plt.show()
python - convert list of tuples to string,""""""", """""".join(map(str, tups))"
how can i sum the product of two list items using for loop in python?,"score = sum([(x * y) for x, y in zip(a, b)])"
how to check if a python module exists without importing it,imp.find_module('eggs')
split string `str1` on one or more spaces with a regular expression,"re.split(' +', str1)"
get all the matches from a string `abcd` if it begins with a character `a`,"re.findall('[^a]', 'abcd')"
how to write pandas dataframe to sqlite with index,"sql.write_frame(price2, name='price2', con=cnx)"
how to remove nan from a pandas series where the dtype is a list?,pd.Series([np.array(e)[~np.isnan(e)] for e in x.values])
numpy isnan() fails on an array of floats (from pandas dataframe apply),"np.isnan(np.array([np.nan, 0], dtype=object))"
python: find index of first digit in string?,"[(i, c) for i, c in enumerate('xdtwkeltjwlkejt7wthwk89lk') if c.isdigit()]"
cut a string by delimiter '&',s.rfind('&')
removing all non-numeric characters from string in python,"re.sub('[^0-9]', '', 'sdkjh987978asd098as0980a98sd')"
saving a numpy array with mixed data,"numpy.savetxt('output.dat', my_array.reshape((1, 8)), fmt='%f %i ' * 4)"
what is numpy way of arranging numpy 2d array based on 2d numpy array of index?,"x[np.arange(x.shape[0])[..., (None)], y]"
find specific link text with bs4,"links = soup.find_all('a', {'id': 'c1'})"
how do you split a string at a specific point?,"[['Cats', 'like', 'dogs', 'as', 'much', 'cats.'], [1, 2, 3, 4, 5, 4, 3, 2, 6]]"
trying to strip b' ' from my numpy array,"array(['one.com', 'two.url', 'three.four'], dtype='|S10')"
python : how to avoid numpy runtimewarning in function definition?,"a = np.array(a, dtype=np.float128)"
can a python script execute a function inside a bash script?,"subprocess.Popen(['bash', '-c', '. foo.sh; go'])"
printing bit representation of numbers in python,"""""""{0:016b}"""""".format(4660)"
change the number of colors in matplotlib stylesheets,h.set_color('r')
how can i send an xml body using requests library?,"print(requests.post('http://httpbin.org/post', data=xml, headers=headers).text)"
evaluating a mathematical expression in a string,"eval('(1).__class__.__bases__[0].__subclasses__()', {'__builtins__': None})"
how can i get the ip address of eth0 in python?,return s.getsockname()[0]
delete all objects in a list,del mylist[:]
convert date string to day of week,"datetime.datetime.strptime('January 11, 2010', '%B %d, %Y').strftime('%A')"
how to get return value from coroutine in python,print(list(sk.d.items()))
how to determine from a python application if x server/x forwarding is running?,os.environ['DISPLAY']
multiplication of two 1-dimensional arrays in numpy,"np.outer(a, b)"
how to read a config file using python,"self.path = configParser.get('your-config', 'path1')"
write all tuple of tuples `a` at once into csv file,writer.writerows(A)
resampling non-time-series data,df.groupby('rounded_length').mean().force
replacing instances of a character in a string,"line = line[:10].replace(';', ':') + line[10:]"
is there any elegant way to build a multi-level dictionary in python?,"multi_level_dict('ab', 'AB', '12')"
how can i process a python dictionary with callables?,"{k: (v() if callable(v) else v) for k, v in a.items()}"
join items of each tuple in list of tuples `a` into a list of strings,"list(map(''.join, a))"
overlay imshow plots in matplotlib,plt.show()
serve a static html page 'your_template.html' at the root of a django project,"url('^$', TemplateView.as_view(template_name='your_template.html'))"