Python modules provide powerful building blocks for extending Python’s functionality across various programming domains. This list of Python modules covers the core categories of Python modules, focusing on system operations, data processing, web development, databases, user interfaces, and multimedia tool...
(1)__name__,每个模块都会定一个__name__特殊变量来存储当前模块的名称,如果不指定,则默认为源代码文件名词,如果是包则有限定名。 (2)解释器初始化的时候,会初始化sys.modules字典(保存已加载的模块),创建builtins(全局函数,常量)模块,__main__模块,sys模块,以及模块搜索路径sys.path (3)python是脚本语言,...
importsyssys.modules['os'] 输出对应的sys.modules对象为以下结果: <module'os'from'/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/os.py'> 如果无法在sys.modules中查找到正在导入的模块对象,那么需要执行步骤【2】。 【2】这一步,主要执行了Python提供的函数__import__来完成查找和加载正在...
sys 模块 sys.argv 命令行参数List,第一个元素是程序本身路径 sys.modules.keys() 返回所有已经导入的模块列表 sys.exc_info() 获取当前正在处理的异常类,exc_type、exc_value、exc_traceback当前处理的异常详细信息 sys.exit(n) 退出程序,正常退出时exit(0) sys.hexversion 获取Python解释程序的版本值,16进制...
sys.argv 命令行参数List,第一个元素是程序本身路径 sys.modules.keys() 返回所有已经导入的模块列表 sys.exc_info() 获取当前正在处理的异常类,exc_type、exc_value、exc_traceback当前处理的异常详细信息 sys.exit(n) 退出程序,正常退出时exit(0)
= exclude_file_list: file_delete(os.path.join(key, filename)) @ops_conn_operation def copy_file(src_path='', dest_path='', ops_conn=None): """Copy a file. The value of src_path and dest_path can be in the format of filename, flash:/filename, and flash:/xxx/filename. ""...
py:772: UserWarning: Usage of dash-separated 'description-file' will not be supported in future versions. Please use the underscore name 'description_file' instead warnings.warn( running bdist_wheel running build running build_py creating build creating build/lib.linux-x86_64-cpython-38 creating...
pyminifier-hUsage:pyminifier[options]""Options:--version show program's version number and exit-h,--help showthishelp message and exit-o<file path>,--outfile=<file path>Save output to the given file.-d<file path>,--destdir=<file path>Save output to the given directory.This option is...
The Python standard library contains a list of built-in Python modules that are shipped with each Python distribution. Most of these libraries help you access system functionality, such as file input/output (I/O). On Windows systems, these libraries are installed with Python. On Unix-based sys...
want to reuse, it’s time to create a function. You create a function using thedefkeyword (which is short fordefine). Thedefkeyword is followed by the function’s name, an optionally empty list of arguments (enclosed in parentheses), a colon, and then one or more lines of indented ...