One of the first things that should stick out is that we’re using themock.patchmethod decorator to mock an object located atmymodule.os, and injecting that mock into our test case method. Wouldn’t it make more
Pythonic编程风格：Python强调清晰、简洁、优雅的代码，推崇"Pythonic"编程风格。这包括使用列表推导式、生成...
import thisThe Zen ofPython, by Tim Peters如何使你的代码看起来更加简洁,请看下面这些话Beautiful is better than ugly.Explicit is better than implicit.Simple is better than complex.Complex is better than complicated.Flat is better than nested.Sparse is better than dense.Readability counts.Special cas...
Errors should never pass silently. Unless explicitly silenced. In the face of ambiguity, refuse the temptation to guess. There should be one-- and preferably only one --obvious way to do it. Although that way may not be obvious at first unless you're Dutch. Now is better than never. ...
The effect of a singleton is usually better implemented as a global variable inside a module. Class decorators are less common than function decorators. You should document these well, so that your users know how to apply them.Caching Return Values...
Flat is better than nested.# 扁平胜于嵌套 Sparse is better than dense.# 稀疏胜于紧空 Readability counts.# 可读性应当被重视 Special cases aren't special enough tobreakthe rules,Although practicality beats # 尽管实用性会打败纯粹性,特例也不能凌驾于规则之上purity.Errors should never pass silently,Un...
# In the child process, __main__ should be __mp_main__ import __main__ import __mp_main__ assert __main__ is __mp_main__ except ImportError: # In the parent process, __mp_main__ should not exist pass if __name__ == '__main__': ...
Note that the interactive interpreter employs behavior that will yield different results, so you should run the following code from a file: Python from sys import getrefcount print("--- Before assignment ---") print(f"References to value_1: {getrefcount('value_1')}") print(f"References...
Q: Function foo() or method bar() returns wrong result, throws exception or crashes interpreter. What should I do? A: The repository contains only OpenCV-Python package build scripts, but not OpenCV itself. Python bindings for OpenCV are developed in official OpenCV repository and it's the ...
Applications implementing WSGI should generate the response body by returning an iterable object. For most applications, the response body isn’t very large and fits easily within the server’s memory. In that case, the most efficient way of sending it is all at once, with a one-element iter...