# os The module
os.sep Can replace OS - specific path separators. windows for '\'
os.name The string indicates the platform you are using. Such as for Windows , it is 'nt' , and for Linux/Unix User, it is 'posix'
os.getcwd() The current working directory () function gets the current working directory Python Directory path for script work
os.getenv() Gets an environment variable if none is returned none
os.putenv(key, value) Set an environment variable value
os.listdir(path) Returns all files and directory names in the specified directory
os.remove(path) The deletes () function deletes a file
os.system(command) Function to run shell The command
os.linesep String gives the line terminator used by the current platform. For example, Windows use 'rn' . Linux use 'n' while Mac use 'r'
os.path.split(path) Function returns the directory name and file name of a path
os.path.isfile() and os.path.isdir() The function checks whether the given path is a file or a directory
os.path.exists() Function to verify that the given path exists
os.curdir Return to current directory ('.')
os.mkdir(path) Create a directory
os.makedirs(path) Recursively create directories
os.chdir(dirname) Change the working directory to dirname
os.path.getsize(name) Get the file size if name Directory return 0L
os.path.abspath(name) Get the absolute path
os.path.normpath(path) specification path String form
os.path.splitext() Separate file name and extension
os.path.join(path,name) Connect directories to file names or directories
os.path.basename(path) Return file name
os.path.dirname(path) Return file path
os.walk(top,topdown=True,onerror=None) Iterate through the iterated directory
os.rename(src, dst) rename file or directory src to dst if dst There is one directory, Will throw OSError. in Unix, if dst Is in existence and is a file, If the user has permission, it will be replaced quietly . The operation will fail at some point Unix If in the src and dst In different file systems . If successful , The naming operation will be an atomic operation ( This is a POSIX Need to be ). in Windows on , if dst existing , Will throw OSError Even if it is a file . in unix . Windows The effective.
os.renames(old, new) Recursively rename folders or files. like rename()
# shutil The module
shutil.copyfile( src, dst) From the source src Copied to the dst . The premise of course is that the destination address has writable permissions. The exception information thrown is IOException. If the current dst If it exists, it will be overwritten
shutil.move( src, dst) Move a file or rename it
shutil.copymode( src, dst) It just copies its permissions and nothing else is copied
shutil.copystat( src, dst) Copy permissions, last access time, last modification time
shutil.copy( src, dst) Copy a file to a file or directory
shutil.copy2( src, dst) in copy The last access time and the modification time of the file are also copied, similar to cp � p The things
shutil.copy2( src, dst) If the file systems in both locations are the same, it's equivalent rename Operation, just rename; If it's not on the same file system move operation
shutil.copytree( olddir, newdir, True/Flase)
the olddir Copy a newdir If the first 3 A parameter is True , the symbolic connection under the folder will be kept when copying the directory, if no 3 A parameter is False , a physical copy is generated under the copied directory to replace the symbolic join
shutil.rmtree( src ) Recursively deletes a directory and everything in it