How to use the Python standard library pathlib
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Path problems are often dealt with when learning Python, especially in file operations and data processing. The most common and common is the os.path module, which treats paths as strings, which can lead to imperceptible errors if used improperly, and code that is difficult to reuse across platforms. Pathlib is a great Python standard library, which is super easy to use.
The pathlib module provides a high-level abstraction that works well on POSIX systems such as Linux and Windows. It abstracts the resource path and resource naming structure, isolates the file system interface from the os module, provides the operation as a method, and is easier to use.
The following picture perfectly illustrates the core of pathlib.
Pathlib basic components > from pathlib import Path > path = Path > > path.drive'C:' > path.root'/' > path.root'C:/' > > path.parentWindowsPath > > path.name'config.tar.gz' > path.stem'config.tar' > > path.suffix'.gz' > > path.suffixes [.tar', '.gz'] common attributes and basic methods
Common properties of pathlib
Path.parents # returns a list of all parent directories Path.parts # split path is similar to os.path.split (), but returns tuple Path.suffix # returns file suffix
Common basic methods of pathlib
Path.is_dir () # determines whether the directory Path.is_file () # is a file Path.exists () # determines whether the path exists Path.open () # opens the file (supports with) Path.resolve () # returns the absolute path Path.cwd () # returns the current directory Path.iterdir () # traverses a subdirectory of the directory or the file Path.mkdir () # Create directory Path.rename () # rename path Path.unlink () # delete file or directory (directory non-null triggered exception) Path.joinpath () # stitching path
Os and os.path VS pathlib
Pathlib replaces the common functions of os and os.path:
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