python f format zero padding code example
Example 1: fill zero behind number python
f_num.strip().zfill(2)
Example 2: string format zero padded int python
i = 69
s = f'{i:03}' # for Python >= 3.6, zero padding to have 3 digits
f_num.strip().zfill(2)
i = 69
s = f'{i:03}' # for Python >= 3.6, zero padding to have 3 digits