How can I change directory (cd) in Python?

How can I change directory (cd) in Python?

Asked on October 13, 2018 in Python.
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  • 7 Answer(s)

                You can definitely change the working directory with the following command:

    import os
    os.chdir(path)
    

               There area unit 2 best practices to follow once victimization this method:

                                   Catch the exception (WindowsError, OS Error) on invalid path. If the exception is thrown, don’t perform any algorithmic operations, particularly damaging ones. they’ll operate the recent path and not the new one.
                                  Return to your recent directory once you are done. this will be wiped out AN exception-safe manner by wrapping your chdir decision in a very context manager.

    Answered on October 13, 2018.
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    I would used to use os.chdir such as this:
    os.chdir(“/path/to/change/to”)
    By the way, if you need to figure out your current path, use os.getcwd().

    Answered on October 13, 2018.
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    Context Manager: cd

    import os
    class cd:
        """Context manager for changing the current working directory"""
        def __init__(self, newPath):
            self.newPath = os.path.expanduser(newPath)
    def __enter__(self):
        self.savedPath = os.getcwd()
        os.chdir(self.newPath)
    def __exit__(self, etype, value, traceback):
        os.chdir(self.savedPath)
    
    Answered on October 13, 2018.
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    So I’m going to change

    The example code for the given question is below

    #!/usr/local/bin/python

    import os
    import time
    import string
    import stat
    import sys
    to.....
    #!/usr/local/bin/python
    import os
    import time
    import string
    import stat
    import sys
    os.chdir(/usr/workingdirectory)
    

     

     

    Answered on December 16, 2018.
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    Here is the sample code

    >>> import os
    >>> print(os.getcwd())
    Answered on December 16, 2018.
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    from contextlib import contextmanager
    import os
    
    @contextmanager
    def cd(newdir):
        prevdir = os.getcwd()
        os.chdir(os.path.expanduser(newdir))
        try:
            yield
        finally:
            os.chdir(prevdir)

    the directory is reverted even after an exception is thrown:

    os.chdir('/home')
    
    with cd('/tmp'):
        # ...
        raise Exception("There's no place like home.")
    # Directory is now back to '/home'.
    Answered on January 14, 2019.
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    You can change the working directory with:

    import os

    os.chdir(path)
    There are two best practices to follow when using this method:

    Catch the exception (WindowsError, OSError) on invalid path. If the exception is thrown, do not perform any recursive operations, especially destructive ones. They will operate on the old path and not the new one.
    Return to your old directory when you’re done. This can be done in an exception-safe manner by wrapping your chdir call in a context manager, like Brian M. Hunt did in his answer.
    Changing the current working directory in a subprocess does not change the current working directory in the parent process. This is true of the Python interpreter as well. You cannot use os.chdir() to change the CWD of the calling process.

    Answered on February 4, 2019.
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