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Equivalent of j in Numpy,1j * np.arange(5)
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replacing all regex matches in single line,"re.sub('\\b(this|string)\\b', '<markup>\\1</markup>', 'this is my string')"
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Is it possible to use 'else' in a python list comprehension?,"[(a if a else 2) for a in [0, 1, 0, 3]]"
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Best way to plot an angle between two lines in Matplotlib,plt.show()
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Sort a list based on dictionary values in python?,"sorted(trial_list, key=lambda x: trial_dict[x])"
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How do I sum values in a column that match a given condition using pandas?,df.groupby('a')['b'].sum()[1]
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Multiprocessing writing to pandas dataframe,"pd.concat(d, ignore_index=True)"
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Reshape pandas dataframe from rows to columns,df2.groupby('Name').apply(tgrp)
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Getting file size in Python?,os.stat('C:\\Python27\\Lib\\genericpath.py').st_size
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Calling a parent class constructor from a child class in python,"super(Instructor, self).__init__(name, year)"
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"How do you pick ""x"" number of unique numbers from a list in Python?","random.sample(list(range(1, 16)), 3)"
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Best way to strip punctuation from a string in Python,"s.translate(None, string.punctuation)"
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Python - Bulk Select then Insert from one DB to another,cursor.execute('INSERT OR REPLACE INTO master.table1 SELECT * FROM table1')
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The best way to filter a dictionary in Python,"d = {k: v for k, v in list(d.items()) if v > 0}"
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Python: sorting items in a dictionary by a part of a key?,"sorted(list(d.items()), key=lambda name_num: (name_num[0].rsplit(None, 1)[0], name_num[1]))"
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How to write individual bits to a text file in python?,"open('file.bla', 'wb')"
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customizing just one side of tick marks in matplotlib using spines,"ax.tick_params(axis='y', direction='out')"
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Grouping dataframes in pandas?,"df.groupby(['A', 'B'])['C'].unique()"
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split items in list,"result = [item for word in words for item in word.split(',')]"
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Replace console output in Python,sys.stdout.flush()
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Storing a matlab file using python,"scipy.io.savemat('test.mat', data)"
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how to create a group ID based on 5 minutes interval in pandas timeseries?,df.groupby(pd.TimeGrouper('5Min'))['val'].mean()
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Plotting terrain as background using matplotlib,plt.show()
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How to create range of numbers in Python like in MATLAB,"print(np.linspace(1, 3, num=5))"
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How to create nested list from flatten list?,"[['a', 'b', 'c'], ['d', 'e', 'f', 'g'], ['d', 's', 'd', 'a']]"
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How to iterate over a range of keys in a dictionary?,"d = OrderedDict([('key1', 'value1'), ('key2', 'value2'), ('key3', 'value3')])"
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change figure size and figure format in matplotlib,"plt.figure(figsize=(3, 4))"
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What is the definition of mean in pandas data frame?,df['col'] = df['col'].map(int)
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Delete letters from string,""""""""""""".join(filter(str.isdigit, '12454v'))"
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swap values in a tuple/list inside a list in python?,"[(t[1], t[0]) for t in mylist]"
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"Regex, find first - Python","re.findall('<wx\\.[^<]*<[^<]*> >', i)"
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Python Save to file,file.close()
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How to run a python script from IDLE interactive shell?,"exec(compile(open('helloworld.py').read(), 'helloworld.py', 'exec'))"
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Python Pandas Dataframe GroupBy Size based on condition,"df.groupby(['id', 'date1']).apply(lambda x: (x['date1'] == x['date2']).sum())"
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how to initialize multiple columns to existing pandas DataFrame,df.reindex(columns=list['cd'])
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How to convert pandas dataframe so that index is the unique set of values and data is the count of each value?,df['Qu1'].value_counts()
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Generating an MD5 checksum of a file,"print(hashlib.md5(open(full_path, 'rb').read()).hexdigest())"
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Create multiple columns in Pandas Dataframe from one function,"df[['IV', 'Vega']] = df.apply(newtonRap, axis=1)"
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How to delete a character from a string using python?,"s = s.replace('M', '')"
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How to add a column to a multi-indexed DataFrame?,"df.insert(1, ('level1', 'age'), pd.Series([13]))"
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"python, format string","""""""{0} %s {1}"""""".format('foo', 'bar')"
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How to call a system command with specified time limit in Python?,self.process.terminate()
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Using variables in Python regular expression,re.compile('{}-\\d*'.format(user))
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Using Colormaps to set color of line in matplotlib,plt.show()
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Creating a dictionary from a CSV file,"{'Date': ['Foo', 'Bar'], '123': ['456', '789'], 'abc': ['def', 'ghi']}"
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Assign a number to each unique value in a list,"[1, 1, 3, 3, 3, 2, 2, 1, 2, 0, 0, 0, 1]"
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Python: Logging TypeError: not all arguments converted during string formatting,logging.info('date={}'.format(date))
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Pandas DataFrame to List of Dictionaries,df.to_dict('records')
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Sorting a list of lists of dictionaries in python,key = lambda x: sum(y['play'] for y in x)
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How to find row of 2d array in 3d numpy array,"np.all(np.all(test, axis=2), axis=1)"
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Slicing numpy array with another array,"numpy.ma.array(strided, mask=mask)"
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Ordering a list of dictionaries in python,"mylist.sort(key=operator.itemgetter('weight', 'factor'))"
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Convert unicode codepoint to UTF8 hex in python,"chr(int('fd9b', 16)).encode('utf-8')"
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MultiValueDictKeyError in Django,"request.GET.get('username', '')"
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Changing the text on a label,self.depositLabel.config(text='change the value')
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How to modify the elements in a list within list,"L = [[1, 2, 3], [4, 5, 6], [3, 4, 6]]"
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Python: How do I format a date in Jinja2?,{{car.date_of_manufacture.strftime('%Y-%m-%d')}}
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How can I use Bootstrap with Django?,STATIC_URL = '/static/'
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Python/Matplotlib - Is there a way to make a discontinuous axis?,"ax.plot(x, y, 'bo')"
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Python - converting a string of numbers into a list of int,"map(int, example_string.split(','))"
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Replace keys in a dictionary,"keys = {'a': 'append', 'h': 'horse', 'e': 'exp', 's': 'see'}"
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Django filter JSONField list of dicts,Test.objects.filter(actions__contains=[{'fixed_key_1': 'foo2'}])
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How do I rename columns in a python pandas dataframe?,"country_data_table.rename(columns={'value': country.name}, inplace=True)"
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How can I start a Python thread FROM C++?,system('python myscript.py')
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How to accumulate an array by index in numpy?,"np.add.at(a, np.array([1, 2, 2, 1, 3]), np.array([1, 1, 1, 1, 1]))"
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How can I fill a matplotlib grid?,plt.show()
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Counting the amount of occurences in a list of tuples,"Counter({'12392': 2, '7862': 1})"
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Python remove anything that is not a letter or number,"re.sub('[\\W_]+', '', s)"
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Pandas: Subtract row mean from each element in row,df.mean(axis=1)
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How to sort a Pandas DataFrame according to multiple criteria?,"df.sort_values(['Peak', 'Weeks'], ascending=[True, False], inplace=True)"
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How to find the index of a value in 2d array in Python?,zip(*np.where(a == 1))
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How to I load a tsv file into a Pandas DataFrame?,"DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')"
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How to decode a 'url-encoded' string in python,urllib.parse.unquote(urllib.parse.unquote('FireShot3%2B%25282%2529.png'))
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Efficient way to convert a list to dictionary,"{k: v for k, v in (e.split(':') for e in lis)}"
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Find max overlap in list of lists,"[[0, 1, 5], [2, 3], [13, 14], [4], [6, 7], [8, 9, 10, 11], [12], [15]]"
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How to generate random numbers that are different?,"random.sample(range(1, 50), 6)"
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finding out absolute path to a file from python,os.path.abspath(__file__)
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How can I show figures separately in matplotlib?,plt.show()
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How do I remove identical items from a list and sort it in Python?,"['a', 'b', 'c', 'd', 'e', 'f']"
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How to input 2 integers in one line in Python?,"a, b = map(int, input().split())"
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"Python mySQL Update, Working but not updating table",dbb.commit()
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Python insert numpy array into sqlite3 database,"cur.execute('insert into test (arr) values (?)', (x,))"
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Exit while loop in Python,sys.exit()
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How to remove the space between subplots in matplotlib.pyplot?,"fig.subplots_adjust(wspace=0, hspace=0)"
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Updating csv with data from a csv with different formatting,"cdf1.to_csv('temp.csv', index=False)"
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Executing a C program in python?,"call(['./spa', 'args', 'to', 'spa'])"
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How to dynamically assign values to class properties in Python?,"setattr(self, attr, group)"
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Equivalent of j in Numpy,np.array([1j])
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Python Pandas: How to get the row names from index of a dataframe?,df.index
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How do I model a many-to-many relationship over 3 tables in SQLAlchemy (ORM)?,session.query(Shots).filter_by(event_id=event_id).count()
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Replacing instances of a character in a string,"line = line.replace(';', ':')"
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How can I iterate and apply a function over a single level of a DataFrame with MultiIndex?,"df.groupby(level=0, axis=1).sub(df['IWWGCW'].values)"
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Python Requests Multipart HTTP POST,"requests.post(url, headers=headers, files=files, data=data)"
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How to authenticate a public key with certificate authority using Python?,"requests.get(url, verify=True)"
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sum a list of numbers in Python,sum(list_of_nums)
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how to parse a list or string into chunks of fixed length,"split_list = [the_list[i:i + n] for i in range(0, len(the_list), n)]"
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Code for line of best fit of a scatter plot in python,"plt.plot(np.unique(x), np.poly1d(np.polyfit(x, y, 1))(np.unique(x)))"
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SQLAlchemy: a better way for update with declarative?,session.query(User).filter_by(id=123).update({'name': 'Bob Marley'})
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Pandas DataFrame performance,df.loc['2000-1-1':'2000-3-31']
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How to authenticate a public key with certificate authority using Python?,"requests.get(url, verify='/path/to/cert.pem')"
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