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Inline instantiation of a constant List
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
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Thanks, doing print(requests.request.__doc__) in IPython is more of what I was looking for though. I was wondering what other optional arguments to request.get() there were.
– wordsforthewise
Oct 22 '17 at 21:16
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Progress indicator during pandas operations
...iceably slow pandas down -- here's an example for DataFrameGroupBy.progress_apply:
import pandas as pd
import numpy as np
from tqdm import tqdm
# from tqdm.auto import tqdm # for notebooks
df = pd.DataFrame(np.random.randint(0, int(1e8), (10000, 1000)))
# Create and register a new `tqdm` instance...
data.table vs dplyr: can one do something well the other can't or does poorly?
...n shallow copied DT
DT[x > 2L, x := 3L] ## have to copy (like base R / dplyr does always); otherwise original DT will
## also get modified.
}
By not using shallow(), the old functionality is retained:
bar <- function(DT) {
DT[, newcol := 1L] ...
Why can templates only be implemented in the header file?
... sentence at the very start of this answer to clarify that the question is based on a false premise. If somebody asks "Why is X true?" when in fact X is not true, we should quickly reject that assumption.
– Aaron McDaid
Aug 5 '15 at 9:39
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Remove empty elements from an array in Javascript
...filter(function(e){return e});
Return:
["hello", 1, 100, " "]
UPDATE (based on Alnitak's comment)
In some situations you may want to keep "0" in the array and remove anything else (null, undefined and ""), this is one way:
arr.filter(function(e){ return e === 0 || e });
Return:
["hello", 0...
How to check if an object is a generator object in python?
...s and generators (generator function's result):
>>> def generator_function():
... yield 1
... yield 2
...
>>> import inspect
>>> inspect.isgeneratorfunction(generator_function)
True
calling generator_function won't yield normal result, it even won't execute any ...
Is there a math nCr function in python? [duplicate]
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def nCr(n,r):
f = math.factorial
return f(n) / f(r) / f(n-r)
if __name__ == '__main__':
print nCr(4,2)
In Python 3, use the integer division // instead of / to avoid overflows:
return f(n) // f(r) // f(n-r)
Output
6
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Very Long If Statement in Python [duplicate]
...to your code block.
For example:
if (abcdefghijklmnopqrstuvwxyz > some_other_long_identifier and
here_is_another_long_identifier != and_finally_another_long_name):
# ... your code here ...
pass
share
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Comparing two branches in Git? [duplicate]
I have two branches, branch_1 and branch_2 .
1 Answer
1
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