Python file management tools.

python_files.py

#############################################################################################
# Usefull file and directory managment functions
#############################################################################################
#
#   os.sep -- path separator
#
# -------------------------------------------------------------------------------------------
#
#   os.path.isabs(path)
#   os.path.isfile(path)
#   os.path.isdir(path)
#   os.path.islink(path)
#   
#   os.path.join(path1[, path2[, ...]])
#   os.path.normcase(path)
#   os.path.normpath(path)
#   os.path.relpath(path, start=None)
#   
#   os.path.split(path) => 'foo/bar/etc' = ('foo/bar', 'etc')
#   os.path.splitext(path) => 'foo/bar.ext' = ('foo/bar', '.ext')
#
# -------------------------------------------------------------------------------------------
#
#   os.rmdir(path, *, dir_fd=None) 
#       => remove empty dir
#
#   os.mkdir(path, mode=0o777, *, dir_fd=None)
#       => Create a directory named path with numeric mode mode
#
#   os.makedirs(path, mode=0o777, exist_ok=False)
#       => Like mkdir(), but makes all intermediate-level directories needed to contain the leaf directory
#
#   os.walk(top, topdown=True, onerror=None, followlinks=False) 
#       => Yields a 3-tuple (dirpath, dirnames, filenames)
#
# -------------------------------------------------------------------------------------------
#
#   shutil.copy(src, dst, *, follow_symlinks=True) 
#       => Copies the file src to the file or directory dst
#
#   shutil.copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2, ignore_dangling_symlinks=False) 
#       => Recursively copy an entire directory tree rooted at src, returning the destination directory.
#          shutil.ignore_patterns(*patterns) can be used to create a callable that ignores names based on glob-style patterns.
#
#   shutil.rmtree(path, ignore_errors=False, onerror=None) 
#       => Delete an entire directory tree
#
#   shutil.move(src, dst) 
#       => Recursively move a file or directory (src) to another location (dst) and return the destination.
#
# -------------------------------------------------------------------------------------------
#
#   glob.iglob(pathname)
#       => Return a possibly-empty list of path names that match pathname
#          'globstar' option is not supported (**)
#
# -------------------------------------------------------------------------------------------

def del_glob(path_glob):
    """Delete all files and folders given by glob expression"""
    for fname in glob.iglob(path_glob):
        os.remove(fname)

def clean_dir(dir):
    """Clean all directory context"""
    if os.path.exists(dir):
        if not os.path.isdir(dir):
            raise Exception(dir + ' is not a directory')
        shutil.rmtree(dir)
    os.mkdir(dir)

def copy_glob_to_folder(src_glob, dst_folder):
    """Copy all files and folders given by glob expression into dst dir"""
    if not os.path.isdir(dst_folder):
        raise Exception(dst_folder + ' is not a directory')
    for n in glob.iglob(src_glob):
        if os.path.isfile(n):
            shutil.copy(n, dst_folder)
        elif os.path.isdir(n):
            short_name = os.path.split(n)[-1]
            dst_name = os.path.join(dst_folder, short_name)
            shutil.copytree(n, dst_name)