(text): """ Return the case-function appropriate for text: upper, lower, title, or just str.: """ return (str.upper if text.isupper() else str.lower if text.islower() else str.title if text.istitle() else str)
恰好open()函数返回TextIOWrapper的一个实例,其__enter__方法返回self。但在不同的类中,__enter__方法也可能返回其他对象,而不是上下文管理器实例。 无论以何种方式退出with块的控制流,__exit__方法都会在上下文管理器对象上调用,而不是在__enter__返回的任何对象上调用。 with语句的as子句是可选的。在open的...
Probably the most common use case is that you want to rate-limit a function that continuously checks whether a resource—like a web page—has changed. The @slow_down decorator will sleep one second before it calls the decorated function:Python decorators.py import functools import time # .....
# <project_root>/tests/test_my_second_function.py import unittest import azure.functions as func from my_second_function import main class TestFunction(unittest.TestCase): def test_my_second_function(self): # Construct a mock HTTP request. req = func.HttpRequest(method='GET', body=N...
Azure Functions expects a function to be a stateless method in your Python script that processes input and produces output. By default, the runtime expects the method to be implemented as a global method in thefunction_app.pyfile. Triggers and bindings can be declared and used in a function...
题记:毕业一年多天天coding,好久没写paper了。在这动荡的日子里,也希望写点东西让自己静一静。恰好前段时间用python做了一点时间序列方面的东西,有一丁点心得体会想和大家分享下。在此也要特别感谢顾志耐和散沙,让我喜欢上了python。 什么是时间序列 时间序列简单的说就是各时间点上形成的数值序列,时间序列分析就是...
For example, consider this Python function definition: >>> def foo(bar=[]): # bar is optional and defaults to [] if not specified ... bar.append("baz") # but this line could be problematic, as we'll see... ... return bar A common mistake is to think that the optional ...
Username for 'https://gitee.com': userName Password for 'https://userName@gitee.com':#私人令牌 Overview PyCM is a multi-class confusion matrix library written in Python that supports both input data vectors and direct matrix, and a proper tool for post-classification model evaluation that suppo...
When the function app isn't at the root of the source repo, make sure that thepip installstep references the correct location in which to create the.python_packagesfolder. Keep in mind that this location is case sensitive, such as in this command example: ...
However, in this particular case, Boost Python provides an alternative way to specify the __str__() function in a more idiomatic fashion. You could define operator<< for Person and tell Boost to use this operator for the __str__() method. For example, #include “phonebook.h” #include...