python format with {} in to code example

Example 1: formatted string python

# Newer f-string format
name = "Foo"
age = 12
print(f"Hello, My name is {name} and I'm {age} years old.")
# output :
# Hello, my name is Foo and I'm 12 years old.

Example 2: method for format age in python

def format_age(s):
    chars = list(s)  # list of characters
    digit_chars = [c for c in chars if c.isdigit()]
    return int("".join(digit_chars))