Python Operations files and directories

Import Osos.name # Operating system name Os.environ #版本 # to get the value of an environment variable, you can call the Os.getenv () function os.getenv (' PATH ')

Manipulating Files and directories:

Part of the function of manipulating files and directories is placed in the os module, part of the os.path module

# View the absolute path of the current directory: Os.path.abspath ('. ') ' /users/michael ' # Create a new directory under a directory, # First, the full path of the new directory is represented: Os.path.join ('/users/michael ', ' testdir ') '/users/michael/testdir ' # then create a directory: Os.mkdir ('/users/michael/testdir ') # Remove a directory: Os.rmdir ('/users/michael/testdir ')

os.path.join()Functions: Merging paths

os.path.splitext()Allows you to get the file name extension directly

# Rename File: Os.rename (' test.txt ', ' test.py ') # Delete file: Os.remove (' test.py ')

shutilmodule provides copyfile() functions, you can also shutil find a lot of practical functions in the module, they can be seen as a os complement to the module

List all directories in the current directory

[x for X in Os.listdir ('. ') if Os.path.isdir (x)] ['. Lein ', '. Local ', '. M2 ', '. npm ', '. ssh ', '. Trash ', '. Vim ', ' adlm ', ' applications ', ' Desktop ', ...]

Lists the. py files under the current path

[x for X in Os.listdir ('. ') if Os.path.isfile (x) and Os.path.splitext (x) [1]== '. Py '] [' apis.py ', ' config.py ', ' models.py ', ' pymonitor.py ', ' test_db.py ', ' urls.py ', ' wsgiapp.py ']

　　

　

Python Operations files and directories