Some of the Python libraries

1, Os.path

Os.path.split (): OS split path, returns a tuple, the first is a path, the second is a file name;

Os.path.basename (): Get file name only;

Os.path.dirname (): Get path only;

Os.path.splitext (): Separates the path, file name, extension, and returns a tuple;

Os.path.commonprefix: In a set of paths, look for a common prefix;

Os.path.jion (): combine some scattered strings to generate a secure path;

Os.path.expanduser (): Look for the eternal home directory;

Os.path.expandvars (): The value of the environment variable in the reading system;

Note: os.environ[' MY ']= ' VALUE ' adds system environment variables

Os.path.normpath: Handle irregular strings and convert them to normal;

Os.path.abspath: Converts a relative path to an absolute path;

2, cmd

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Some of the Python libraries