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Python Sets vs Lists
...st(iterable):
... for i in iterable:
... pass
...
>>> from timeit import timeit
>>> timeit(
... "iter_test(iterable)",
... setup="from __main__ import iter_test; iterable = set(range(10000))",
... number=100000)
12.666952133178711
>>> timeit(
... ...
Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
...onfigured as "x86_64-linux-gnu".
Attaching to process 5636
Reading symbols from /usr/bin/tail...(no debugging symbols found)...done.
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...(no debugging symb...
Determine path of the executing script
...error happens when you try to execute dirname(sys.frame(1)$ofile) directly from Rstudio. It works ok when the script is executed using source("other.R"), and dirname(sys.frame(1)$ofile) is inside "other.R".
– Murta
Jul 14 '15 at 23:39
...
How can I calculate the difference between two dates?
... date using e.g. an NSDateFormatter, the NSDateFormatter converts the time from the configured timezone. Therefore, the number of seconds between two NSDate objects will always be time-zone-agnostic.
Furthermore, this documentation specifies that Cocoa's implementation of time does not account for ...
This project references NuGet package(s) that are missing on this computer
...
In my case, I had to remove the following from the .csproj file:
<Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild"...
Python multiprocessing pool.map for multiple arguments
...a sequence of argument tuples. It then automatically unpacks the arguments from each tuple and passes them to the given function:
import multiprocessing
from itertools import product
def merge_names(a, b):
return '{} & {}'.format(a, b)
if __name__ == '__main__':
names = ['Brown', 'Wil...
Get a random boolean in python?
...s(1)"
1000000 loops, best of 3: 0.308 usec per loop
$ python -m timeit -s "from random import getrandbits" "not getrandbits(1)"
1000000 loops, best of 3: 0.262 usec per loop # not takes about 20us of this
Added this one after seeing @Pavel's answer
$ python -m timeit -s "from random import rando...
ImportError in importing from sklearn: cannot import name check_build
I am getting the following error while trying to import from sklearn:
13 Answers
13
...
How do I get the file name from a String containing the Absolute file path?
... file system so wouldn't expect the performance to be materially different from a substring/indexOf.
– assylias
Sep 26 '13 at 7:15
7
...
Remove directory from remote repository after adding them to .gitignore
...ctory "some-directory"'
git push origin master
You can't delete the file from your history without rewriting the history of your repository - you shouldn't do this if anyone else is working with your repository, or you're using it from multiple computers. If you still want to do that, you can use...