大约有 40,000 项符合查询结果(耗时:0.0492秒) [XML]

https://stackoverflow.com/ques... 

namedtuple and default values for optional keyword arguments

...gt;>> Node() Node(val=None, left=None, right=None) Before Python 2.6 Set Node.__new__.func_defaults to the default values. >>> from collections import namedtuple >>> Node = namedtuple('Node', 'val left right') >>> Node.__new__.func_defaults = (None,) * len(Node._...
https://stackoverflow.com/ques... 

Import a file from a subdirectory?

... Take a look at the Packages documentation (Section 6.4) here: http://docs.python.org/tutorial/modules.html In short, you need to put a blank file named __init__.py in the "lib" directory. share ...
https://stackoverflow.com/ques... 

Running single test from unittest.TestCase via command line

... phihagphihag 239k6060 gold badges406406 silver badges444444 bronze badges ...
https://stackoverflow.com/ques... 

How to decorate a class?

... orokusaki 45.8k4646 gold badges152152 silver badges240240 bronze badges answered Mar 25 '09 at 15:14 Jarret HardieJar...
https://stackoverflow.com/ques... 

How do I get list of methods in a Python class?

... | edited Apr 12 at 6:49 answered Dec 15 '09 at 23:41 ...
https://stackoverflow.com/ques... 

How to access outer class from an inner class?

... 68 The methods of a nested class cannot directly access the instance attributes of the outer class...
https://stackoverflow.com/ques... 

How to sort a list of objects based on an attribute of the objects?

... Dorian Turba 72699 silver badges2020 bronze badges answered Dec 31 '08 at 16:42 TriptychTriptych ...
https://stackoverflow.com/ques... 

How do I use PHP namespaces with autoload?

... | edited Nov 6 '16 at 20:11 answered Dec 9 '09 at 1:35 ...
https://stackoverflow.com/ques... 

Why is early return slower than else?

...se(): >>> T(lambda : without_else()).repeat() [0.42015745017874906, 0.3188967452567226, 0.31984281521812363] >>> T(lambda : with_else()).repeat() [0.36009842032996175, 0.28962249392031936, 0.2927151355828528] >>> T(lambda : without_else(True)).repeat() [0.3170972847107691...
https://stackoverflow.com/ques... 

How to properly assert that an exception gets raised in pytest?

...============================================ platform linux2 -- Python 2.7.6 -- py-1.4.26 -- pytest-2.6.4 collected 7 items test.py ..FF..F =================================================================================================== FAILURES ================================================...