大约有 5,685 项符合查询结果(耗时:0.0159秒) [XML]
Splitting a list into N parts of approximately equal length
...and `print(*L). Also see stackoverflow.com/a/36908/2184122 or search for "python use of asterisk".
– Robert Lugg
Jun 26 '19 at 21:01
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pandas: filter rows of DataFrame with operator chaining
...olution - I wasn't even aware that you could jury-rig methods like that in python. A function like this would be really nice to have in Pandas itself.
– naught101
Mar 3 '17 at 2:38
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Do we need semicolon at the end? [duplicate]
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As a python developer, I don't understand why you would do that. Either you use semicolons, in which case your statements can span across as many lines you wish, or you don't, in which case the end of a line means that the stateme...
Implications of foldr vs. foldl (or foldl')
...y, when there is only one form in a language, it is a left fold, including Python's reduce, Perl's List::Util::reduce, C++'s accumulate, C#'s Aggregate, Smalltalk's inject:into:, PHP's array_reduce, Mathematica's Fold, etc. Common Lisp's reduce defaults to left fold but there's an option for right f...
NumPy array initialization (fill with identical values)
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You can at least do help(numpy.full) in a Python shell. I am also surprised that it is not in the web documentation.
– Eric O Lebigot
Jan 22 '14 at 13:49
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What's the difference between UTF-8 and UTF-8 without BOM?
...ple don't know about it.
BOM breaks scripts
Shell scripts, Perl scripts, Python scripts, Ruby scripts, Node.js scripts or any other executable that needs to be run by an interpreter - all start with a shebang line which looks like one of those:
#!/bin/sh
#!/usr/bin/python
#!/usr/local/bin/perl
#...
Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppres
...ommand-line options as errors. This issue has been seen when building both Python native extensions and Ruby Gems, where some invalid compiler options are currently specified.
Projects using invalid compiler options will need to be changed to remove those options. To help ease that transition, the ...
Django filter versus get for single object?
... Everything is correct but maybe more info should be added to answer? 1. Python encourages try/except (see EAFP), that's why QS.get() is good. 2. Details matter: does "expecting only one" means always 0-1 objects, or it's possible to have 2+ objects and that case should be handled too (in this c...
C++ IDE for Linux? [closed]
...u end up not using them. Here’s just a small and biased selection:
For Python development, there’s PyCharm
For R, there’s RStudio
For JavaScript and TypeScript, there’s Visual Studio Code (which is also a good all-round editor)
And finally, many people love the Sublime Text editor for gene...
prototype based vs. class based inheritance
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@Stephano, They're not so distinct as all that: Python, Ruby, Smalltalk use dictionaries for method lookup, and javascript and Self have classes. To some extent, you could argue that the difference is just that the prototype-oriented languages are exposing their implement...