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Convert Average of Python List Values to Another List,"{'Mike': [[1, 4], [5, 7]], 'Joe': [[5, 7], [6, 9], [7, 4]]}" |
Can I set user-defined variable in Python MySQLdb?,cursor.execute('SELECT @X:=@X+1 FROM some_table') |
Using Spritesheets in Tkinter,self.canvas.pack() |
Matplotlib fill beetwen multiple lines,"plt.fill_between(X, Y2, Y3, color='m', alpha=0.5)" |
Creating a game board with Python and Tkinter,root.mainloop() |
Matplotlib - Contour plot with single value,plt.show() |
How to order a list of lists by the first value,"[1, 1, 1] < [1, 1, 2]" |
Slice pandas DataFrame where column's value exists in another array,df.query('a in @keys') |
"In Python, how to change text after it's printed?",sys.stdout.flush() |
Reshape pandas dataframe from rows to columns,"pd.concat([df2[df2.Name == 'Jane'].T, df2[df2.Name == 'Joe'].T])" |
Find closest row of DataFrame to given time in Pandas,df.iloc[i] |
Algorithm - How to delete duplicate elements in a list efficiently?,M = list(set(L)) |
Get rows that have the same value across its columns in pandas,"df[df.apply(lambda x: min(x) == max(x), 1)]" |
run program in Python shell,"exec(compile(open('C:\\test.py').read(), 'C:\\test.py', 'exec'))" |
Is it possible to make POST request in Flask?,app.run(debug=True) |
"Is it possible to take an ordered ""slice"" of a dictionary in Python based on a list of keys?","zip(my_list, map(my_dictionary.get, my_list))" |
Condensing Multiple List Comprehensions,"[[9, 30, 'am'], [5, 0, 'pm']]" |
Django: Convert a POST request parameters to query string,request.META['QUERY_STRING'] |
Numpy: get 1D array as 2D array without reshape,"np.column_stack([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5]])" |
Python Logging - Disable logging from imported modules,logger = logging.getLogger(__name__) |
Fastest way to store large files in Python,"gzip.GzipFile('output file name', 'wb')" |
Split a string only by first space in python,"s.split(' ', 1)" |
Sorting list by an attribute that can be None,my_list.sort(key=nonesorter) |
Remove certain keys from a dictionary in python,"FieldSet = dict((k, v) for k, v in FieldSet.items() if len(v) != 1)" |
Importing files in Python from __init__.py,__init__.py |
How to check if value is nan in unittest?,assertTrue(math.isnan(nan_value)) |
Counting the amount of occurences in a list of tuples,"sum(v for k, v in c.items() if v > 1)" |
Sending binary data over sockets with Python,s.send(my_bytes) |
Python: plot data from a txt file,pylab.show() |
replace values in an array,"np.place(a, np.isnan(a), 0)" |
Find the nth occurrence of substring in a string,"find_nth('foofoofoofoo', 'foofoo', 2)" |
How to get text with selenium web driver in python,element = driver.find_element_by_class_name('class_name').text |
How to export a table to csv or excel format,writer.writerows(cursor.fetchall()) |
How do I translate a ISO 8601 datetime string into a Python datetime object?,"datetime.datetime.strptime(conformed_timestamp, '%Y%m%dT%H%M%S.%f%z')" |
Numpy - add row to array,"array([[0, 1, 2], [0, 2, 0], [0, 1, 2], [1, 2, 0], [2, 1, 2]])" |
How can I vectorize the averaging of 2x2 sub-arrays of numpy array?,y.mean(axis=1).mean(axis=-1) |
pandas: slice a MultiIndex by range of secondary index,s['b'].iloc[1:10] |
Using Python to add a list of files into a zip file,"ZipFile.write(a, compress_type=zipfile.ZIP_DEFLATED)" |
How do I write output in same place on the console?,sys.stdout.flush() |
How to update matplotlib's imshow() window interactively?,draw() |
How to modify matplotlib legend after it has been created?,pylab.show() |
How to count the occurrence of certain item in an ndarray in Python?,"a = numpy.array([0, 3, 0, 1, 0, 1, 2, 1, 0, 0, 0, 0, 1, 3, 4]) |
collections.Counter(a)" |
How to use Python kazoo library?,from kazoo.client import KazooClient |
python replace backslashes to slashes,"print('pictures\\12761_1.jpg'.replace('\\', '/'))" |
How to query MultiIndex index columns values in pandas,"x.loc[(x.B >= 111.0) & (x.B <= 500.0)].set_index(['A', 'B'])" |
Passing a function with two arguments to filter() in python,basetwo('10010') |
Extracting Data with Python Regular Expressions,"re.findall('\\d+', s)" |
Pythonic way to assign the parameter into attribute?,"setattr(self, k, v)" |
where to store a log file name in python?,logging.debug('This is a message from another place.') |
Reshaping array into a square array Python,"x.reshape(2, 2, 5).transpose(1, 0, 2).reshape(4, 5)" |
Convert list to lower-case,l = [item.lower() for item in l] |
Best way to remove elements from a list,[item for item in my_list if some_condition()] |
get the index of the last negative value in a 2d array per column,"np.maximum.accumulate((A2 < 0)[:, ::-1], axis=1)[:, ::-1]" |
How can I execute Python code in a virtualenv from Matlab,system('python myscript.py') |
How to union two subqueries in SQLAlchemy and postgresql,session.query(q).limit(10) |
Convert numpy array to tuple,tuple([tuple(row) for row in myarray]) |
Getting the docstring from a function,help(my_func) |
Python: How can I run python functions in parallel?,p1.start() |
Moving x-axis to the top of a plot in matplotlib,"ax.tick_params(labelbottom='off', labeltop='on')" |
Can Selenium web driver have access to javascript global variables?,browser.execute_script('return globalVar;') |
Django - Filter objects older than X days,Post.objects.filter(createdAt__lte=datetime.now() - timedelta(days=plan.days)) |
How can I convert an RGB image into grayscale in Python?,img.save('greyscale.png') |
Adding Values From Tuples of Same Length,"coord = tuple(sum(x) for x in zip(coord, change))" |
How do I get the Application ID at runtime,os.environ['APPLICATION_ID'] |
python: how to sort lists alphabetically with respect to capitalized letters,"sorted(lst, key=lambda L: (L.lower(), L))" |
Select everything but a list of columns from pandas dataframe,"df.drop(['T1_V6'], axis=1)" |
Is there a function for Converting IP address to decimal number in python?,"print(struct.unpack('!I', socket.inet_aton('127.0.0.1'))[0])" |
Python pandas - filter rows after groupby,"get_group_rows(df, 'A', 'B', 'median', '>')" |
How do you specify the foreign key column value in SQLAlchemy?,"users = relationship('User', backref='account')" |
Perform different operations based on index modulus of list items,"['One', 'TWO', 'eerhT', 'Four', 'FIVE', 'xiS', 'Seven', 'EIGHT', 'eniN']" |
How can I make a barplot and a lineplot in the same seaborn plot with different Y axes nicely?,plt.show() |
How to get the seconds since epoch from the time + date output of gmtime() in Python?,time.mktime(time.gmtime(0)) |
How to get absolute url in Pylons?,"print(url('blog', id=123, qualified=True, host='example.com'))" |
Replace values in list using Python,new_items = [(x if x % 2 else None) for x in items] |
Named colors in matplotlib,plt.show() |
How to dynamically select a method call in Python?,"getattr(foo_obj, command)()" |
Python requests can't send multiple headers with same key,"headers = [('X-Attribute', 'A'), ('X-Attribute', 'B')]" |
Python export csv data into file,"output.write('{0}:{1}\n'.format(nfeature[0] + 1, nfeature[1]))" |
"In Python, is there a concise way to use a list comprehension with multiple iterators?","list(itertools.product(list(range(1, 3)), list(range(1, 5))))" |
How to parse XML in Python and LXML?,print(doc.xpath('//aws:weather/aws:ob/aws:temp')[0].text) |
Convert pandas DataFrame to a nested dict,df = pd.DataFrame.from_dict(data) |
Resampling trade data into OHLCV with pandas,"df.resample('30s', how={'volume': 'sum'})" |
Reading a CSV file into Pandas Dataframe with invalid characters (accents),sys.setdefaultencoding('utf8') |
How to make a histogram from a list of strings in Python?,df.plot(kind='bar') |
Notebook widget in Tkinter,root.title('ttk.Notebook') |
Convert string to JSON using Python,print(d['glossary']['title']) |
Convert SRE_Match object to string,print(result.group(0)) |
How to execute manage.py from the Python shell,"execute_from_command_line(['manage.py', 'syncdb'])" |
Summarizing a dictionary of arrays in Python,"OrderedDict(heapq.nlargest(3, iter(mydict.items()), key=lambda tup: sum(tup[1])))" |
Tkinter: Wait for item in queue,time.sleep(1) |
How do I make a Django ModelForm menu item selected by default?,form = MyModelForm(instance=someinst) |
Can the Python CSV module parse files with multi-column delimiters,"reader = csv.reader(open('test.csv'), delimiter='|#|')" |
What is the simplest way to create a shaped window in wxPython?,"self.Bind(wx.EVT_PAINT, self.OnPaint)" |
Inserting JSON into MySQL using Python,db.execute('INSERT INTO json_col VALUES (' + json_value + ')') |
Is there a scala equivalent to python's list comprehension,list.filter(_ != somevalue) |
Make new column in Panda dataframe by adding values from other columns,"df['C'] = df.apply(lambda row: row['A'] + row['B'], axis=1)" |
From a list of lists to a dictionary,{l[1]: l for l in lol} |
How to install python packages in virtual environment only with virtualenv bootstrap script?,"subprocess.call(['pip', 'install', '-E', home_dir, 'django'])" |
Set variable point size in matplotlib,"ax1.scatter(data[0], data[1], marker='o', c='b', s=data[2], label='the data')" |
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