etl - Python Rename Filename With Substring Best Practices -

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simplified, have data file:

p.a2057.aco.qassgn.d150218.t1200333.xls

i copy directory "mssp_data_archive" documentation here:

dest_dir = "c:/users/office/desktop/test/mssp_data_archive/" file in glob.glob(r'c:/users/office/desktop/test/load/*.xls'):     print file     shutil.copy(file, dest_dir)

i rename original version still sitting in "load" this:

qassgn.xls

i not know exact name of file monthly (appears @ least partially randomly generated elements).

i hoping substring current filename extract desired name above.

here have started:

for file in glob.glob(r'c:/users/office/desktop/test/load/*.xls'):     parts = file.split('.')       parts = ['c:/users/office/desktop/test/load\\p',              'a2057', 'aco', 'qassgn', 'd150218', 't1200333','xls']

i know there must better way handle os.path.splitext , os.rename avoid getting "magic numbers" trouble. not pythonic.

any pointers sincerely appreciated!

this assuming input desired name 4th section in filename. 1 thing magic number, dont know of way expect data named.

# path of files path = 'c:\\users\\office\\desktop\\test\\load' # place want output files # set input because have no idea want them dest_path = path # type of files want rename ext = r'xls'  # file contain path of file file in glob.glob('{path}\\*.{ext}'.format(path=path, ext=ext)):     # filename going change (dont want path @ all)     name = file.split('\\')[-1]      # new name of file     new_file = '{path}\\{name}.{ext}'.format(         path=dest_path,         name=name.split('.')[3],         ext=ext     )      os.rename(file, new_file)

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