Display number with leading zeros

You can use the str.format() method to display a number with leading zeros in Python. The {:0Xd} format specifier, where X is the total width of the number including leading zeros and d stands for decimal, can be used to pad the number with leading zeroes.

For example, to display the number 5 with leading zeroes to make it 2 digits wide, you can use the following code:

number = 5
print("{:02d}".format(number))

This will output 05.

You can also use f-strings (Python 3.6+)

number = 5
print(f"{number:02d}")

This will also output 05.