Human: Write me a Python code format center padding. Assistant: 
Here is a Python code format center padding

import re

def _center_padding(string, width, fillchar=' '):
    """
    Format a string with center padding.
    """
    return fillchar * (width - len(string)) + string

# Enter the string
string = "lilly"

# Enter the width
width = 10

# Enter the fillchar
fillchar =''

# Calling the function
print((_center_padding(string, width, fillchar)))

#Example Output
# lilly

#Remember to inspect code for bugs.