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TABLE OF CONTENTS

• module file_util
• function relative_path
• function chdirs
• function open_w
• function rename

file_util

MODULE

    file_util

PURPOSE

    Utility functions for manipulating files and paths

relative_path

FUNCTION

    relative_path(path1,path2)

PURPOSE

    Generates relative path of path2 relative to path1. 

ARGUMENTS

    path1 and path2 are paths relative to a common directory

RETURN

    Path for file2 relative to directory containing path1

chdirs

FUNCTION

    chdirs(dir)

PURPOSE

    Change current working directory to dir (like os.chdir), and
    create dir and any necessary parents if it does not yet exist.

open_w

FUNCTION

    open_w(path)

PURPOSE

    Open file with specified path for writing, return file object.
    Similar to built-in function open(path,'w'), except that open_w
    will create any non-existent directories in the path.

RETURN

    file object with specified path, opened for writing

rename

FUNCTION

    rename(old_path,new_path)

ARGUMENTS

    old_path - path of file or directory to be 

PURPOSE

    Rename a file or directory. Similar to os.rename,but will 
    create any non-existent directories in the path

RETURN

    file object with specified path, opened for writing