How to do file not found show waring?

Question

If no input file will show Error TypeError: expected str, bytes or os.PathLike object, not NoneType But I want to show a warning to remind users to input files outside, how to do?

def get_xml_name():
    args = sys.argv
    if len(args) > 1 :
       args = args[1]
       strA = "".join(args)
       return strA



inputfile = open(get_xml_name() , 'r')
TypeError: expected str, bytes or os.PathLike object, not NoneType

`with` means that you want to do _something_ with the file in the next line. Change it to `open(get_xml_name() , 'r')` or better use `.exists()` method. — Selcuk, Dec 09 '21 at 01:36

score 0 · Answer 1 · answered Dec 09 '21 at 01:35

0

Instead of

with open(get_xml_name() , 'r') as f:

use

f = open(get_xml_name() , 'r')

then later

f.close()

answered Dec 09 '21 at 01:35

Erik McKelvey

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How to do file not found show waring?

1 Answers1