python padding zeros code example

Example 1: python convert number to string with leading zeros

str(1).zfill(2)
# 1 will be '01'

str(23).zfill(4)
# 23 will be '0023'

Example 2: pad zeros to a string python

my_str='9'
my_str.zfill(2)

Example 3: fill zero behind number python

f_num.strip().zfill(2)