8.2 OS. path -- common path name Operation (1)

8.2 OS. path -- common path name Operation (1)

OS. path. isabs (path)

If the path parameter is an absolute path, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = isabs (pathstr)

Print (r)

The output is as follows:

True

 

OS. path. isfile (path)

If the path parameter is returned by a file, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = isfile (pathstr)

Print (r)

The output is as follows:

True

 

OS. path. isdir (path)

If the path parameter is a directory, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = isdir (pathstr)

Print (r)

The output is as follows:

False

 

OS. path. islink (path)

If the path parameter is a symbolic entry connection, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = islink (pathstr)

Print (r)

The output is as follows:

False

 

OS. path. ismount (path)

Determine whether the path parameter path is a mount point. If yes, return True.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = ismount (pathstr)

Print (r)

The output is as follows:

False

 

OS. path. join (path1 [, path2 [,...])

Reasonably connect directories and file composition paths.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ temp \ py \ cal_1.py'

R = join ('f: \ temp ',' \ py \ cal_1.py ')

Print (r)

The output is as follows:

F: \ py \ cal_1.py

 

OS. path. normcase (path)

Format the case and slash of the path.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = normcase (pathstr)

Print (r)

The output is as follows:

F: \ temp \ py \ cal_1.py

 

OS. path. normpath (path)

Remove the relative path from the path.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ .. \ py \ cal_1.py'

R = normpath (pathstr)

Print (r)

The output is as follows:

F: \ py \ cal_1.py

 

OS. path. realpath (path)

Returns the actual path. If it is a relative path, it is removed. If it is a shortcut, the actual path is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ .. \ py \ cal_1.py'

R = realpath (pathstr)

Print (r)

The output is as follows:

F: \ py \ cal_1.py

 

OS. path. relpath (path, start = OS. curdir)

Convert the path to a relative path based on the directory start.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ .. \ py \ cal_1.py'

R = relpath (pathstr)

Print (r)

The output is as follows:

.. \... \ .. \ Py \ cal_1.py

 

OS. path. samefile (path1, path2)

Determine whether the two paths are the same. If the values are the same, True is returned. Otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = relpath (pathstr)

Print (r)

R = samefile (pathstr, r)

Print (r)

The output is as follows:

.. \ Py \ cal_1.py

True

 

OS. path. sameopenfile (fp1, fp2)

Checks whether fp1 and fp2 are the same files. If they are the same, True is returned. Otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = relpath (pathstr)

Print (r)

Fp1 = open (pathstr)

Fp2 = open (r)

R = sameopenfile (fp1.fileno (), fp2.fileno ())

Print (r)

Fp1.close ()

Fp2.close ()

The output is as follows:

.. \ Py \ cal_1.py

True

 

OS. path. samestat (stat1, stat2)

The file status is used to determine whether two files point to the same file. If yes, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = relpath (pathstr)

Print (r)

Fp1 = OS. stat (pathstr)

Fp2 = OS. stat (r)

R = samestat (fp1, fp2)

Print (r)

The output is as follows:

.. \ Py \ cal_1.py

True

 

OS. path. split (path)

Divide the path into two parts: path and file name.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = split (pathstr)

Print (r)

The output is as follows:

('F: \ Temp \ py', 'cal _ 1. py ')

 

OS. path. splitdrive (path)

Break down the path into the driver and the path relative to the driver.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = split (pathstr)

Print (r)

R = splitdrive (pathstr)

Print (r)

The output is as follows:

('F: \ Temp \ py', 'cal _ 1. py ')

('F: ',' \ Temp \ py \ cal_1.py ')

 

OS. path. splitext (path)

Break down the path into the file name and suffix.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = split (pathstr)

Print (r)

R = splitdrive (pathstr)

Print (r)

R = splitext (pathstr)

Print (r)

The output is as follows:

('F: \ Temp \ py', 'cal _ 1. py ')

('F: ',' \ Temp \ py \ cal_1.py ')

('F: \ Temp \ py \ cal_1 ','. py ')

 

OS. path. splitunc (path)

The path is decomposed by unc.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = split (pathstr)

Print (r)

R = splitdrive (pathstr)

Print (r)

R = splitext (pathstr)

Print (r)

R = splitunc (pathstr)

Print (r)

R = splitunc (R' \ 192.168.0.1 \ abc \ test. py ')

Print (r)

The output is as follows:

('F: \ Temp \ py', 'cal _ 1. py ')

('F: ',' \ Temp \ py \ cal_1.py ')

('F: \ Temp \ py \ cal_1 ','. py ')

('', 'F: \ Temp \ py \ cal_1.py ')

('\\\\ 192.168.0.1 \ abc',' \ test. py ')

 

OS. path. supports_unicode_filenames

If the Unicode string can be used as the file name, True is returned; otherwise, False is returned.

Example:

# Python3.4

Fromos. pathimport *

Importos

 

Pathstr = 'f: \ Temp \ py \ cal_1.py'

R = split (pathstr)

Print (r)

Print (supports_unicode_filenames)

The output is as follows:

('F: \ Temp \ py', 'cal _ 1. py ')

True