Datasets:

AhmedSSoliman

/

CoNaLa-Large

like 0

convert binary string '11111111' to integer

int('11111111', 2)

fixing color in scatter plots in matplotlib

plt.show()

python pandas dataframe slicing by date conditions

df.sort_index()

python pandas - how to flatten a hierarchical index in columns

df.columns = df.columns.get_level_values(0)

expanding numpy array over extra dimension

np.tile(b, (2, 2, 2))

python pandas: replace values multiple columns matching multiple columns from another dataframe

df2.rename(columns={'OCHR': 'chr', 'OSTOP': 'pos'}, inplace=True)

finding the index of elements based on a condition using python list comprehension

a[:] = [x for x in a if x <= 2]

converting string to tuple

print([(x[0], x[-1]) for x in l])

smartest way to join two lists into a formatted string

c = ', '.join('%s=%s' % t for t in zip(a, b))

dynamically updating plot in matplotlib

plt.draw()

replace rarely occurring values in a pandas dataframe

g = df.groupby('column_name')

numpy `logical_or` for more than two arguments

np.logical_or.reduce((x, y, z))

python: sort an array of dictionaries with custom comparator?

key = lambda d: (not 'rank' in d, d['rank'])

wait for shell command `p` evoked by subprocess.popen to complete

p.wait()

get the sum of the products of each pair of corresponding elements in lists `a` and `b`

sum(x * y for x, y in zip(a, b))

how to replace values with none in pandas data frame in python?

df.replace('-', np.nan)

how to join components of a path when you are constructing a url in python

urlparse.urljoin('/media/', 'js/foo.js')

python - how to format variable number of arguments into a string?

function_in_library('Hello %s' % ', '.join(['%s'] * len(my_args)), my_args)

iterate through words of a file in python

words = open('myfile').read().split()

get the common prefix from comparing two absolute paths '/usr/var' and '/usr/var2/log'

os.path.commonprefix(['/usr/var', '/usr/var2/log'])

elegant way to create a dictionary of pairs, from a list of tuples?

dict(x[1:] for x in reversed(myListOfTuples))

remove all the elements that occur in one list from another

l3 = [x for x in l1 if x not in l2]

create new columns in pandas from python nested lists

df.A.apply(lambda x: pd.Series(1, x)).fillna(0).astype(int)

how to sort list of lists according to length of sublists

sorted(a, key=len)

print current date and time in a regular format

time.strftime('%Y-%m-%d %H:%M')

regex to separate numeric from alpha

re.findall('(\\d+|[a-zA-Z]+)', '12fgsdfg234jhfq35rjg')

confusing with the usage of regex in python

re.findall('[a-z]*', '123456789')

python int to binary?

bin(10)

python getting a list of value from list of dict

[d['value'] for d in l]

filter objects month wise in django model `sample` for year `2011`

Sample.objects.filter(date__year='2011', date__month='01')

how to flatten a pandas dataframe with some columns as json?

df[['id', 'name']].join([A, B])

sort list of tuples by reordering tuples

sorted(A, key=operator.itemgetter(2, 0, 1))

encode `u'x\xc3\xbcy\xc3\x9f'` as unicode and decode with utf-8

'X\xc3\xbcY\xc3\x9f'.encode('raw_unicode_escape').decode('utf-8')

how to create a ratings csr_matrix in scipy?

scipy.sparse.csr_matrix([column['rating'], column['user'], column['movie']])

find dictionary items whose key matches a substring

[value for key, value in list(programs.items()) if 'new york' in key.lower()]

how to iterate through a list of tuples containing three pair values?

[(1, 'B', 'A'), (2, 'C', 'B'), (3, 'C', 'A')]

printing numbers rounding up to third decimal place

print('%.3f' % 3.1415)

how to do pearson correlation of selected columns of a pandas data frame

df.corr().iloc[:-1, (-1)]

matplotlib artist to stay same size when zoomed in but also move with panning?

plt.show()

convert a string of numbers `example_string` separated by `,` into a list of integers

map(int, example_string.split(','))

how to create a dictionary using two lists in python?

dict(zip(x, y))

append to file 'test1' content 'koko'

with open('test1', 'ab') as f: pass

running python code contained in a string

print('hello')

remove newline in string `s` on the left side

s.lstrip()

most pythonic way to convert a list of tuples

zip(*list_of_tuples)

extracting only characters from a string in python

""" """.join(re.split('[^a-zA-Z]*', 'your string'))

how to use the mv command in python with subprocess

subprocess.call(['mv', '/home/somedir/subdir/*', 'somedir/'])

split string 'fooxyzbar' based on case-insensitive matching using string 'xyz'

re.compile('XYZ', re.IGNORECASE).split('fooxyzbar')

remove duplicates from a list of sets 'l'

[set(item) for item in set(frozenset(item) for item in L)]

selecting data between specific hours in a pandas dataframe

df_new = df[(df['time'] > start_time) & (df['time'] < end_time)]

regex to get list of all words with specific letters (unicode graphemes)

print(' '.join(get_words(['k', 'c', 't', 'a'])))

idiom for flattening a shallow nested list: how does it work?

[x for y in l for x in y]

python regex to match non-ascii names

regexRef = re.compile('\\w', re.UNICODE)

match zero-or-more instances of lower case alphabet characters in a string `f233op `

re.findall('([a-z]*)', 'f233op')

numpy: check if array 'a' contains all the numbers in array 'b'.

numpy.array([(x in a) for x in b])

using headers with the python requests library's get method

r = requests.get('http://www.example.com/', headers={'content-type': 'text'})

python: getting rid of \u200b from a string using regular expressions

'used\u200b'.replace('\u200b', '*')

regular expression to return all characters between two special characters

match.group(1)

flask confusion with app

app = Flask(__name__)

python: test if value can be converted to an int in a list comprehension

[row for row in listOfLists if row[x].isdigit()]

how can i backup and restore mongodb by using pymongo?

db.col.find({'price': {'$lt': 100}})

how to create a list with the characters of a string?

['5', '+', '6']

how to continue a task when fabric receives an error

sudo('rm tmp')

save a subplot in matplotlib

fig.savefig('full_figure.png')

json query that returns parent element and child data?

dict((k, v['_status']['md5']) for k, v in list(json_result.items()))

get list item by attribute in python

items = [item for item in container if item.attribute == value]

find a specific tag with beautifulsoup

soup.findAll('div', style='width=300px;')

how to set the unit length of axis in matplotlib?

plt.show()

sort list of mixed strings based on digits

sorted(l, key=lambda x: int(re.search('\\d+', x).group(0)))

check the status code of url "http://www.stackoverflow.com"

urllib.request.urlopen('http://www.stackoverflow.com').getcode()

is there a python equivalent to ruby's string interpolation?

"""my {0} string: {1}""".format('cool', 'Hello there!')

unpack first and second bytes of byte string `ps` into integer

struct.unpack('h', pS[0:2])

extract the 2nd elements from a list of tuples

[x[1] for x in elements]

convert a list with string `['1', '2', '3']` into list with integers

map(int, ['1', '2', '3'])

intersection of 2d and 1d numpy array

A[:, 3:].flat[np.in1d(A[:, 3:], B)] = 0

generate 6 random numbers between 1 and 50

random.sample(range(1, 50), 6)

python - how to format variable number of arguments into a string?

'Hello %s' % ', '.join(map(str, my_args))

get keys with same value in dictionary `d`

print([key for key in d if d[key] == 1])

code to detect all words that start with a capital letter in a string

print([word for word in words if word[0].isupper()])

passing the '+' character in a post request in python

f = urllib.request.urlopen(url, urllib.parse.unquote(urllib.parse.urlencode(params)))

find numpy array rows which contain any of list

np.in1d(a, b).reshape(a.shape).any(axis=1)

confusing with the usage of regex in python

re.findall('([a-z])*', 'f233op')

create list of dictionary python

[{'data': 2}, {'data': 2}, {'data': 2}]

merge column 'word' in dataframe `df2` with column 'word' on dataframe `df1`

df1.merge(df2, how='left', on='word')

substract 1 hour and 10 minutes from current time

t = datetime.datetime.now() (t - datetime.timedelta(hours=1, minutes=10))

make tkinter widget take focus

root.mainloop()

how to get the current model instance from inlineadmin in django

return super(MyModelAdmin, self).get_form(request, obj, **kwargs)

getting the docstring from a function

help(my_func)

post json to python cgi

print(json.dumps(result))

read pandas data frame csv `comma.csv` with extra commas in column specifying string delimiter `'`

df = pd.read_csv('comma.csv', quotechar="'")

how to draw line inside a scatter plot

ax.set_ylabel('TPR or sensitivity')

passing variable from javascript to server (django)

document.getElementById('geolocation').submit()

regenerate vector of randoms in python

np.random.normal(0, 1, (100, 3))

how can i slice each element of a numpy array of strings?

a.view('U1').reshape(4, -1)[:, 1:3]

join elements of each tuple in list `a` into one string

[''.join(x) for x in a]

splitting numpy array based on value

zeros = np.where(a == 0)[0]

how to duplicate rows in pandas, based on items in a list

df['data'] = df['data'].apply(clean_string_to_list)

clear tkinter canvas `canvas`

canvas.delete('all')

python load zip with modules from memory

zipfile.ZipFile(zipbytes)

what is the most efficient way to remove a group of indices from a list of numbers in python 2.7?

return [numbers[i] for i in range(len(numbers)) if i not in indices]