Python 3 - Regular expression for a set digit length?

Question

I want to check if another string matches with the following string:

'abc_xxxxxxxxxxxxx.txt'

e.g.

abc_20170926121600.txt would match

but

xyz_20170926121600.txt or abc_201709261216002323232323232323.txt would not match

Have you looked at `{}` for the repetition specifier in the re docs? — Jon Clements, Oct 02 '17 at 14:26

score 3 · Accepted Answer · edited Oct 02 '17 at 14:31

3

You want this:

abc_\d{N}\.txt

Where N is the number of digits.

edited Oct 02 '17 at 14:31

yorah

answered Oct 02 '17 at 14:26

John Zwinck

5

Technically you would need to escape the period with a \ too, otherwise it would match any single charachter between the digits and the 'txt'. – Gavin Jackson Oct 02 '17 at 14:29

1 Answers1