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How to check if a value exists in a dictionary (python),type(iter(d.values()))
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Optional get parameters in django?,"url('^so/(?P<required>\\d+)/', include('myapp.required_urls'))"
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Consequences of abusing nltk's word_tokenize(sent),"nltk.tokenize.word_tokenize('Hello, world.')"
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Getting the total number of lines in a Tkinter Text widget?,int(text_widget.index('end-1c').split('.')[0])
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Normalize columns of pandas data frame,df = df / df.max().astype(np.float64)
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Python repeat string,print('{0} {0}'.format(s[:5]))
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Using Python Regular Expression in Django,"""""""^org/(?P<company_name>\\w+)/$"""""""
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find xml element based on its attribute and change its value,"elem.find('.//number[@topic=""sys/phoneNumber/1""]')"
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Copying data from S3 to AWS redshift using python and psycopg2,conn.commit()
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Python: sorting dictionary of dictionaries,"sorted(dic, key=lambda x: dic[x].get('Fisher', float('inf')))"
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Python - json without whitespaces,"json.dumps(separators=(',', ':'))"
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How to generate random colors in matplotlib?,plt.show()
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Find and replace string values in Python list,"words = [word.replace('[br]', '<br />') for word in words]"
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Python Pandas- Merging two data frames based on an index order,df1['cumcount'] = df1.groupby('val1').cumcount()
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Print file age in seconds using Python,print('mdatetime = {}'.format(datetime.datetime.fromtimestamp(mtime)))
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"python, Json and string indices must be integers, not str",accesstoken = retdict['access_token']
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Python: Lambda function in List Comprehensions,[(lambda x: x * i) for i in range(4)]
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How to convert SQL Query result to PANDAS Data Structure?,"df = pd.read_sql(sql, cnxn)"
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How do I get the name of a python class as a string?,test.__name__
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Changing marker style in scatter plot according to third variable,plt.show()
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How to find out if there is data to be read from stdin on Windows in Python?,os.isatty(sys.stdin.fileno())
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Compare Python Pandas DataFrames for matching rows,"pd.merge(df1, df2, on=common_cols, how='inner')"
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Changing time frequency in Pandas Dataframe,"new = df.resample('T', how='mean')"
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How to find and count emoticons in a string using python?,wordcount = len(s.split())
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"""TypeError: string indices must be integers"" when trying to make 2D array in python","Tablero = array('b', [Boardsize, Boardsize])"
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How would I go about playing an alarm sound in python?,os.system('beep')
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Python regexp groups: how do I get all groups?,"re.findall('[a-z]+', s)"
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"sigmoidal regression with scipy, numpy, python, etc","scipy.optimize.leastsq(residuals, p_guess, args=(x, y))"
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"Displaying numbers with ""X"" instead of ""e"" scientific notation in matplotlib",plt.show()
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"Resize matrix by repeating copies of it, in python","array([[0, 1, 0, 1, 0, 1, 0], [2, 3, 2, 3, 2, 3, 2]])"
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How to decrement a variable while printing in Python?,print(decrement())
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efficient way to compress a numpy array (python),"my_array.compress([(x in ['this', 'that']) for x in my_array['job']])"
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What's the simplest way of detecting keyboard input in python from the terminal?,"termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)"
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How to specify the endiannes directly in the numpy datatype for a 16bit unsigned integer?,"np.memmap('test.bin', dtype=np.dtype('>u2'), mode='r')"
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convert list of tuples to multiple lists in Python,"zip(*[(1, 2), (3, 4), (5, 6)])"
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Congruency Table in Pandas (Pearson Correlation between each row for every row pair),"df.corr().mask(np.equal.outer(df.index.values, df.columns.values))"
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Conditionally passing arbitrary number of default named arguments to a function,"func('arg', 'arg2', 'some value' if condition else None)"
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Sending ASCII Command using PySerial,ser.write('open1\r\n')
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Python: How to make a list of n numbers and randomly select any number?,random.choice(mylist)
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Is there a simple way to change a column of yes/no to 1/0 in a Pandas dataframe?,"pd.Series(np.searchsorted(['no', 'yes'], sample.housing.values), sample.index)"
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Iterate a list of tuples,"tuple_list = [(a, some_process(b)) for a, b in tuple_list]"
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Python concatenate string & list,""""""", """""".join(str(f) for f in fruits)"
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Find index of last occurrence of a substring in a string,s.rfind('l')
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How do you select choices in a form using Python?,form['FORM1'] = ['Value1']
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Python: Convert unicode string to MM/DD/YYYY,"datetime.datetime.strptime('Mar232012', '%b%d%Y').strftime('%m/%d/%Y')"
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How to use symbolic group name using re.findall(),"[{'toto': '1', 'bip': 'xyz'}, {'toto': '15', 'bip': 'abu'}]"
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Splitting Numpy array based on value,zeros = np.where(a == 0)[0]
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Splitting integer in Python?,[int(i) for i in str(12345)]
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How to get the label of a choice in a Django forms ChoiceField?,{{OBJNAME.get_FIELDNAME_display}}
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python subprocess with gzip,p.stdin.close()
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text with unicode escape sequences to unicode in python,print('test \\u0259'.decode('unicode-escape'))
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How do convert unicode escape sequences to unicode characters in a python string,print(name.decode('latin-1'))
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How to write unicode strings into a file?,f.write(s)
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How can I color Python logging output?,logging.error('some error')
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Python Checking a string's first and last character,"print('hi' if str1.startswith('""') and str1.endswith('""') else 'fails')"
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Sort order of lists in multidimensional array in Python,"test = sorted(test, key=lambda x: len(x) if type(x) == list else 1)"
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Writing to a file in a for loop,text_file.close()
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Setting a clip on a seaborn plot,"sns.kdeplot(x=points['x_coord'], y=points['y_coord'], ax=ax)"
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How can I build a recursive function in python?,sys.setrecursionlimit()
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Vertical text in Tkinter Canvas,root.mainloop()
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How to subtract one from every value in a tuple in Python?,"holes = [(table[i][1] + 1, table[i + 1][0] - 1) for i in range(len(table) - 1)]"
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Cookies with urllib2 and PyWebKitGtk,opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
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Importing a local variable in a function into timeit,time = timeit.timeit(lambda : module.expensive_func(data))
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"Python ""extend"" for a dictionary",a.update(b)
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Multiplying values from two different dictionaries together in Python,"{k: (v * dict2[k]) for k, v in list(dict1.items()) if k in dict2}"
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Python - Return rows after a certain date where a condition is met,df.groupby('deviceid').apply(after_purchase)
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Python - dump dict as a json string,json.dumps(fu)
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Python - How can I do a string find on a Unicode character that is a variable?,zzz = 'foo'
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How to center a window on the screen in Tkinter?,root.title('Not centered')
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how to convert a python dict object to a java equivalent object?,"map.put(key, new_value)"
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How do I attach event bindings to items on a canvas using Tkinter?,root.mainloop()
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How to create a dict with letters as keys in a concise way?,"dic = dict((y, x) for x, y in enumerate(al, 1))"
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How to retrieve table names in a mysql database with Python and MySQLdb?,cursor.execute('USE mydatabase')
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How do you count cars in OpenCV with Python?,img = cv2.imread('parking_lot.jpg')
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What's a quick one-liner to remove empty lines from a python string?,text = os.linesep.join([s for s in text.splitlines() if s])
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Importing financial data into Python Pandas using read_csv,"data.loc[0, 'transaction_amount']"
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Split a list into nested lists on a value,"[[1, 4], [6, 9], [3, 9, 4]]"
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How do I raise the same Exception with a custom message in Python?,print(' got error of type ' + str(type(e)) + ' with message ' + e.message)
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convert integer to binary,"your_list = map(int, '{:b}'.format(your_int))"
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"Python-Matplotlib boxplot. How to show percentiles 0,10,25,50,75,90 and 100?",plt.show()
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How to get the values from a NumPy array using multiple indices,"arr[[1, 4, 5]]"
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Is there a way to split a string by every nth separator in Python?,"print(['-'.join(words[i:i + span]) for i in range(0, len(words), span)])"
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What are the guidelines to allow customizable logging from a Python module?,logger = logging.getLogger(__name__)
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Dynamically add subplots in matplotlib with more than one column,fig.tight_layout()
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Python regex alternative for join,"re.sub('(?<=.)(?=.)', '-', string)"
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CherryPy interferes with Twisted shutting down on Windows,cherrypy.engine.start()
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Move a tkinter canvas with Mouse,root.mainloop()
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How to convert integer value to array of four bytes in python,"map(ord, tuple(struct.pack('!I', number)))"
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Remove column from multi index dataframe,df.columns = pd.MultiIndex.from_tuples(df.columns.to_series())
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Extract external contour or silhouette of image in Python,"contour(im, levels=[245], colors='black', origin='image')"
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Remove items from a list while iterating,somelist[:] = [x for x in somelist if not determine(x)]
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efficient way to count the element in a dictionary in Python using a loop,{x[0]: len(list(x[1])) for x in itertools.groupby(sorted(mylist))}
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Reading tab delimited csv into numpy array with different data types,"np.genfromtxt(txt, delimiter='\t', dtype='6int,S20')"
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Is it possible to have multiple statements in a python lambda expression?,"(lambda x, f: list(y[1] for y in f(x)))(lst, lambda x: (sorted(y) for y in x))"
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How can I do a batch insert into an Oracle database using Python?,connection.commit()
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Python: how to calculate the sum of a list without creating the whole list first?,sum(a)
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How do I match zero or more brackets in python regex,"re.sub('\\[.*\\]|\\{.*\\}', '', one)"
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How to set pdb break condition from within source code?,pdb.set_trace()
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How to check if a python module exists without importing it,imp.find_module('eggs')
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how to move identical elements in numpy array into subarrays,"np.split(a, np.nonzero(np.diff(a))[0] + 1)"
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