add 0 before number python 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: python3 format leading 0
print(f"{1:02d}")
Example 3: python3 format leading 0
print("{:02d}".format(1))