How to Display Numbers with Leading Zeros in Python?

Displaying Numbers with Leading Zeros

In various programming scenarios, we may encounter situations where we need to display numbers with leading zeros to achieve a consistent format or meet specific requirements. Let's explore how to effectively accomplish this task in Python.

For Python 2 and Python 3, the following approach can be employed:

number = 1
print("%02d" % (number,))

Here, the "%" syntax serves a similar purpose as printf or sprintf. Essentially, "d" instructs Python to display the number as a decimal integer with a minimum width of two digits, ensuring that any number with less than two digits will be prefixed with a leading zero.

In Python 3 and its subsequent versions, we can leverage the "format" function to achieve the same result:

number = 1
print("{:02d}".format(number))

Similarly, with Python 3.6 and its newer versions, f-strings provide an alternative and concise way to format strings:

number = 1
print(f"{number:02d}")

These solutions effectively display numbers with leading zeros, meeting the requirement of maintaining a consistent and visually appealing format.

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