I have a list of folder names. Some names contain numbers only and others have the numbers prefixed before some text.
Where the folder name contains both numbers and text, i would like to extract only the numbers (first four digits).
internal_list = [f.name for f in os.scandir(internal_path) if f.is_dir() ] print(internal_list)
internal_list shows a list as follows
[1001 Support, 1021 Training, 1022, 1023, 1033 Procedures]
I would like internal_digits to show:
[1001, 1021, 1022, 1023, 1033]
internal_digits = []
for filename in internal_list:
if filename in '0123456789':
internal_digits.append(filename[0:4])
print (internal_digits)
Answer
internal_digits=[i.split()[0] for i in internal_list]