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5,280,178 | How do I load a file into the python console? | load a file `file.py` into the python console | exec(compile(open('file.py').read(), 'file.py', 'exec')) |
10,822,635 | Get the number of rows in table using SQLAlchemy | SQLAlchemy count the number of rows in table `Congress` | rows = session.query(Congress).count() |
18,742,657 | Execute Shell Script from python with variable | null | subprocess.call(['test.sh', str(domid)]) |
16,888,888 | How to read a .xlsx file using the pandas Library in iPython? | read excel file `file_name` using pandas | dfs = pd.read_excel(file_name, sheetname=None) |
38,831,808 | Reading hex to double-precision float python | unpack the binary data represented by the hexadecimal string '4081637ef7d0424a' to a float | struct.unpack('d', binascii.unhexlify('4081637ef7d0424a')) |
5,508,352 | Indexing numpy array with another numpy array | Get index of numpy array `a` with another numpy array `b` | a[tuple(b)] |
9,040,939 | How to find all possible sequences of elements in a list? | find all possible sequences of elements in a list `[2, 3, 4]` | map(list, permutations([2, 3, 4])) |
36,518,800 | Sort a list in python based on another sorted list | sort a list `unsorted_list` based on another sorted list `presorted_list` | sorted(unsorted_list, key=presorted_list.index) |
19,779,790 | How to get yesterday in python | null | datetime.datetime.now() - datetime.timedelta(days=1) |
22,963,263 | Creating a zero-filled pandas data frame | create a dataframe `d` filled with zeros with indices from 0 to length of `data` and column names from `feature_list` | d = pd.DataFrame(0, index=np.arange(len(data)), columns=feature_list) |
674,764 | string find | find the index of sub string 'World' in `x` | x.find('World') |
674,764 | string find | find the index of sub string 'Aloha' in `x` | x.find('Aloha') |
674,764 | string find | find the index of sub string 'cc' in string 'sdfasdf' | 'sdfasdf'.index('cc') |
674,764 | string find | find the index of sub string 'df' in string 'sdfasdf' | 'sdfasdf'.index('df') |
674,764 | string find | find the index of sub string 'a' in string `str` | str.find('a') |
674,764 | string find | find the index of sub string 'g' in string `str` | str.find('g') |
674,764 | string find | find the index of sub string 's' in string `str` starting from index 11 | str.find('s', 11) |
674,764 | string find | find the index of sub string 's' in string `str` starting from index 15 | str.find('s', 15) |
674,764 | string find | find the index of sub string 's' in string `str` starting from index 16 | str.find('s', 16) |
674,764 | string find | find the index of sub string 's' in string `str` starting from index 11 and ending at index 14 | str.find('s', 11, 14) |
17,627,531 | Sort list of date strings | sort list of date strings 'd' | sorted(d, key=lambda x: datetime.datetime.strptime(x, '%m-%Y')) |
27,946,742 | Regular expression in Python sentence extractor | Get all the sentences from a string `text` using regex | re.split('\\.\\s', text) |
27,946,742 | Regular expression in Python sentence extractor | null | re.split('\\.\\s', re.sub('\\.\\s*$', '', text)) |
8,247,792 | Python - How to cut a string in Python? | get all characters in string 'foobar' up to the fourth index | """foobar"""[:4] |
8,247,792 | Python - How to cut a string in Python? | cut a string by delimiter '&' | s.rfind('&') |
8,247,792 | Python - How to cut a string in Python? | cut a string using delimiter '&' | s[:s.rfind('&')] |
32,874,539 | Using a variable in xpath in Python Selenium | find a tag `option` whose `value` attribute is `state` in selenium | driver.find_element_by_xpath("//option[@value='" + state + "']").click() |
4,706,499 | append to a file | append line "appended text" to file "test.txt" | with open('test.txt', 'a') as myfile:
myfile.write('appended text') |
4,706,499 | append to a file | append line "cool beans..." to file "foo" | with open('foo', 'a') as f:
f.write('cool beans...') |
4,706,499 | append to a file | append to file 'test1' content 'koko' | with open('test1', 'ab') as f:
pass |
4,706,499 | append to a file | append to file 'test' content 'koko' | open('test', 'a+b').write('koko') |
18,312,447 | How can I split a string into tokens? | split string 'x+13.5*10x-4e1' into tokens | print([i for i in re.split('([\\d.]+|\\W+)', 'x+13.5*10x-4e1') if i]) |
34,587,346 | Python: Check if a string contains chinese character? | Find all Chinese characters in string `ipath` | re.findall('[\u4e00-\u9fff]+', ipath) |
13,128,565 | String splitting in Python | split string `s` by letter 's' | s.split('s') |
1,196,074 | How to start a background process in Python? | run shell command 'rm -r some.file' in the background | subprocess.Popen(['rm', '-r', 'some.file']) |
8,303,993 | Elegant way to transform a list of dict into a dict of dicts | convert a list of dictionaries `listofdict into a dictionary of dictionaries | dict((d['name'], d) for d in listofdict) |
311,627 | print date in a regular format | print current date and time in a regular format | datetime.datetime.now().strftime('%Y-%m-%d %H:%M') |
311,627 | print date in a regular format | print current date and time in a regular format | time.strftime('%Y-%m-%d %H:%M') |
27,744,882 | Finding consecutive consonants in a word | find consecutive consonants in a word `CONCENTRATION` using regex | re.findall('[bcdfghjklmnpqrstvwxyz]+', 'CONCERTATION', re.IGNORECASE) |
4,111,412 | How do I get a list of indices of non zero elements in a list? | get a list of indices of non zero elements in a list `a` | [i for i, e in enumerate(a) if e != 0] |
11,339,210 | How to get integer values from a string in Python? | get multiple integer values from a string 'string1' | map(int, re.findall('\\d+', string1)) |
647,515 | How can I know python's path under windows? | get the path of Python executable under windows | os.path.dirname(sys.executable) |
14,406,214 | Moving x-axis to the top of a plot in matplotlib | move an x-axis label to the top of a plot `ax` in matplotlib | ax.xaxis.set_label_position('top') |
14,406,214 | Moving x-axis to the top of a plot in matplotlib | move x-axis to the top of a plot `ax` | ax.xaxis.tick_top() |
14,406,214 | Moving x-axis to the top of a plot in matplotlib | Move x-axis of the pyplot object `ax` to the top of a plot in matplotlib | ax.xaxis.set_ticks_position('top') |
25,279,993 | Parsing non-zero padded timestamps in Python | parse string '2015/01/01 12:12am' to DateTime object using format '%Y/%m/%d %I:%M%p' | datetime.strptime('2015/01/01 12:12am', '%Y/%m/%d %I:%M%p') |
16,387,069 | Open images | Open image 'picture.jpg' | img = Image.open('picture.jpg')
img.show() |
16,387,069 | Open images | Open image "picture.jpg" | img = Image.open('picture.jpg')
Img.show |
179,369 | How do I abort the execution of a Python script? | terminate the script using status value 0 | sys.exit(0) |
179,369 | How do I abort the execution of a Python script? | abort the execution of the script using message 'aa! errors!' | sys.exit('aa! errors!') |
179,369 | How do I abort the execution of a Python script? | abort the execution of a python script | sys.exit() |
34,543,513 | Find maximum with limited length in a list | find maximum with lookahead = 4 in a list `arr` | [max(abs(x) for x in arr[i:i + 4]) for i in range(0, len(arr), 4)] |
1,810,743 | How to set the current working directory in Python? | set the current working directory to 'c:\\Users\\uname\\desktop\\python' | os.chdir('c:\\Users\\uname\\desktop\\python') |
1,810,743 | How to set the current working directory in Python? | set the current working directory to path `path` | os.chdir(path) |
3,159,155 | How to remove all integer values from a list in python | get a list `no_integers` of all the items in list `mylist` that are not of type `int` | no_integers = [x for x in mylist if not isinstance(x, int)] |
2,637,760 | How do I match contents of an element in XPath (lxml)? | match contents of an element to 'Example' in xpath (lxml) | tree.xpath(".//a[text()='Example']")[0].tag |
40,512,124 | convert dictionaries into string python | concatenate key/value pairs in dictionary `a` with string ', ' into a single string | """, """.join([(str(k) + ' ' + str(v)) for k, v in list(a.items())]) |
16,866,261 | Detecting non-ascii characters in unicode string | Strip all non-ASCII characters from a unicode string, `\xa3\u20ac\xa3\u20ac` | print(set(re.sub('[\x00-\x7f]', '', '\xa3\u20ac\xa3\u20ac'))) |
16,866,261 | Detecting non-ascii characters in unicode string | Get all non-ascii characters in a unicode string `\xa3100 is worth more than \u20ac100` | print(re.sub('[\x00-\x7f]', '', '\xa3100 is worth more than \u20ac100')) |
988,228 | Convert a String representation of a Dictionary to a dictionary? | build a dict of key:value pairs from a string representation of a dict, `{'muffin' : 'lolz', 'foo' : 'kitty'}` | ast.literal_eval("{'muffin' : 'lolz', 'foo' : 'kitty'}") |
13,793,973 | Easiest way to remove unicode representations from a string in python 3? | Print string `t` with proper unicode representations | print(t.decode('unicode_escape')) |
10,525,301 | String encoding and decoding from possibly latin1 and utf8 | Normalize string `str` from 'cp1252' code to 'utf-8' code | print(str.encode('cp1252').decode('utf-8').encode('cp1252').decode('utf-8')) |
2,407,398 | merge lists into a list of tuples | merge lists `list_a` and `list_b` into a list of tuples | zip(list_a, list_b) |
2,407,398 | merge lists into a list of tuples | merge lists `a` and `a` into a list of tuples | list(zip(a, b)) |
18,695,605 | python pandas dataframe to dictionary | convert pandas DataFrame `df` to a dictionary using `id` field as the key | df.set_index('id').to_dict() |
18,695,605 | python pandas dataframe to dictionary | convert pandas dataframe `df` with fields 'id', 'value' to dictionary | df.set_index('id')['value'].to_dict() |
1,534,542 | Can I sort text by its numeric value in Python? | null | sorted(list(mydict.items()), key=lambda a: map(int, a[0].split('.'))) |
640,001 | How can I remove text within parentheses with a regex? | remove parentheses and text within it in string `filename` | re.sub('\\([^)]*\\)', '', filename) |
29,454,773 | How can I tell if a string only contains letter AND spaces | Check if string 'a b' only contains letters and spaces | """a b""".replace(' ', '').isalpha() |
14,050,824 | Add SUM of values of two LISTS into new LIST | 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)] |
11,932,729 | How to sort a Python dictionary by value? | sort a python dictionary `a_dict` by element `1` of the value | sorted(list(a_dict.items()), key=lambda item: item[1][1]) |
4,108,561 | How to exclude a character from a regex group? | null | re.compile('[^a-zA-Z0-9-]+') |
13,070,461 | Get index of the top n values of a list in python | get index of the biggest 2 values of a list `a` | sorted(list(range(len(a))), key=lambda i: a[i])[-2:] |
13,070,461 | Get index of the top n values of a list in python | get indexes of the largest `2` values from a list `a` using itemgetter | zip(*sorted(enumerate(a), key=operator.itemgetter(1)))[0][-2:] |
13,070,461 | Get index of the top n values of a list in python | get the indexes of the largest `2` values from a list of integers `a` | sorted(list(range(len(a))), key=lambda i: a[i], reverse=True)[:2] |
14,538,885 | How to get the index with the key in Python dictionary? | get index of key 'c' in dictionary `x` | list(x.keys()).index('c') |
8,337,004 | How to print +1 in Python, as +1 (with plus sign) instead of 1? | Print +1 using format '{0:+d}' | print('{0:+d}'.format(score)) |
3,460,161 | Remove adjacent duplicate elements from a list | remove adjacent duplicate elements from a list `[1, 2, 2, 3, 2, 2, 4]` | [k for k, g in itertools.groupby([1, 2, 2, 3, 2, 2, 4])] |
2,168,123 | Converting a String to List in Python | split string "0,1,2" based on delimiter ',' | """0,1,2""".split(',') |
2,168,123 | Converting a String to List in Python | convert the string '0,1,2' to a list of integers | [int(x) for x in '0,1,2'.split(',')] |
6,586,310 | Python: Convert list of key-value tuples into dictionary? | convert list of key-value tuples `[('A', 1), ('B', 2), ('C', 3)]` into dictionary | dict([('A', 1), ('B', 2), ('C', 3)]) |
3,685,265 | How to write a multidimensional array to a text file? | save numpy array `x` into text file 'test.txt' | np.savetxt('test.txt', x) |
19,267,591 | How to store os.system() output in a variable or a list in python | store the output of command 'ls' in variable `direct_output` | direct_output = subprocess.check_output('ls', shell=True) |
32,032,836 | Select everything but a list of columns from pandas dataframe | get all column name of dataframe `df` except for column 'T1_V6' | df[df.columns - ['T1_V6']] |
9,560,207 | How to count values in a certain range in a Numpy array? | get count of values in numpy array `a` that are between values `25` and `100` | ((25 < a) & (a < 100)).sum() |
8,380,389 | how to get day name in datetime in python | Get day name from a datetime object | date.today().strftime('%A') |
15,863,066 | Python regular expression match whole word | null | re.search('\\bis\\b', your_string) |
4,830,535 | Python: How do I format a date in Jinja2? | Jinja parse datetime object `car.date_of_manufacture` to use format pattern `datetime` | {{car.date_of_manufacture | datetime}} |
4,830,535 | Python: How do I format a date in Jinja2? | Get the date object `date_of_manufacture` of object `car` in string format '%Y-%m-%d' | {{car.date_of_manufacture.strftime('%Y-%m-%d')}} |
952,914 | Making a flat list out of list of lists | make a flat list from list of lists `sublist` | [item for sublist in l for item in sublist] |
952,914 | Making a flat list out of list of lists | make a flat list from list of lists `list2d` | list(itertools.chain(*list2d)) |
952,914 | Making a flat list out of list of lists | make a flat list from list of lists `list2d` | list(itertools.chain.from_iterable(list2d)) |
3,673,428 | Convert int to ASCII and back in Python | convert ascii value 'a' to int | ord('a') |
3,984,539 | Python: use regular expression to remove the white space from all lines | replace white spaces in string ' a\n b\n c\nd e' with empty string '' | re.sub('(?m)^[^\\S\\n]+', '', ' a\n b\n c\nd e') |
3,984,539 | Python: use regular expression to remove the white space from all lines | remove white spaces from all the lines using a regular expression in string 'a\n b\n c' | re.sub('(?m)^\\s+', '', 'a\n b\n c') |
19,300,174 | Python: Assign each element of a List to a separate Variable | destruct elements of list `[1, 2, 3]` to variables `a`, `b` and `c` | a, b, c = [1, 2, 3] |
13,368,723 | Python split a list into subsets based on pattern | split list `mylist` into a list of lists whose elements have the same first five characters | [list(v) for k, v in itertools.groupby(mylist, key=lambda x: x[:5])] |
37,584,492 | Regular expression substitution in Python | remove all instances of parenthesesis containing text beginning with `as ` from string `line` | line = re.sub('\\(+as .*?\\) ', '', line) |
17,027,690 | How to skip the extra newline while printing lines read from a file? | skip the newline while printing `line` | print(line.rstrip('\n')) |
18,358,938 | Get index values of Pandas DataFrame as list? | get index values of pandas dataframe `df` as list | df.index.values.tolist() |
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