existant_file

yoda_powers.toolbox.existant_file(path)

‘Type’ for argparse - checks that file exists and return the absolute path as PosixPath() with pathlib

Notes

function need modules:

• pathlib

• argparse

Parameters

path (str) – a path to existent file

Returns

Path(path).resolve()

Return type

PosixPath

Raises

• ArgumentTypeError – If file path does not exist.

• ArgumentTypeError – If path is not a valid file.

Examples

>>> import argparse
>>> parser = argparse.ArgumentParser(prog='test.py', description='''This is demo''')
>>> parser.add_argument('-f', '--file', metavar="<path/to/file>",type=existant_file, required=True,
    dest='path_file', help='path to file')