1$ Python --help2usage: Python [option] ... [-c cmd | -m mod | file | -] [arg] ...3Optionsandarguments (andcorresponding environment variables):4-B : don't write .py[co] files on import; also PYTHONDONTWRITEBYTECODE=x5-c cmd : program passedinas string (terminates option list...
When you create Python classes that include properties and distribute them in a package or library, you should expect your users to do unexpected things with them. One of those things could be subclassing them to customize their functionalities. In these cases, your users should be aware of a...
We are done with the intermediate example. You should now be able to replicate similar analyses for various datasets. There are a lot of other things that can be adjusted to make the plots more interesting. You can always search for anything you'd like to do and you will most likely find...
fmenu4.add_command(label=item) # add_cascade的一个很重要的属性就是menu属性,它指明了要把那个菜单级联到该菜单项上, #当然,还必不可少的就是label属性,用于指定该菜单项的名称 menubar.add_cascade(label="文件",menu=fmenu1) menubar.add_cascade(label="编辑",menu=fmenu2) menubar.add_cascade(labe...
'bool' = True) -> 'FrameOrSeriesUnion'Concatenate pandas objects along a particular axis with optional set logicalong the other axes.Can also add a layer of hierarchical indexing on the concatenation axis,which may be useful if the labels are the same (or overlapping) onthe passed axis numb...
First add a @cache decorator to your module: Python decorators.py import functools # ... def cache(func): """Keep a cache of previous function calls""" @functools.wraps(func) def wrapper_cache(*args, **kwargs): cache_key = args + tuple(kwargs.items()) if cache_key not in ...
Let’s think about a simple example where we have a set of numbers contained in a list,and we would like to pick one of those numbers uniformly at random. 在本例中,我们需要使用的函数是random.choice,在括号内,我们需要一个列表。 The function we need to use in this case is random.choice...
sudo add-apt-repository ppa:deadsnakes/ppa sudo apt-get update sudo apt-get install python3.6 wget https://bootstrap.pypa.io/get-pip.py sudo python3.6 get-pip.py python3.6 -m pip install --upgrade pip setuptools wheel sudo apt-get install python3.6-venv ...
10 Things I Hate About Pandas Pandas 社区目前选择了在单机上先做好，至少目前看来，这方面 Pandas ...
add some unit tests for coverage (#3947) 7个月前 .gitignore remove pyi files (#5074) 22天前 .pre-commit-config.yaml remove pyi files (#5074) 22天前 CODE_OF_CONDUCT.md prettier (#4941) 1个月前 CONTRIBUTING.md add instruction to use latest python version (#5092) ...