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Python Regular Expressions in Python Introduction to Regular Expressions Escapes

Posted by baderalsayegh
baderalsayegh
19,026 Points

Multiple string by int to create a pattern

Hello can someone explain this problem to me and how to be solve im confuse right now.

Thank you

escapes.py 
import re

def first_number(str):
    return re.search(r'\d', str)

def numbers(a, b):
    num = a * b

1 Answer

Robin *
Robin *
5,670 Points
Robin *
Robin *
5,670 Points 
# write a function named numbers
# that takes two args: a count(int) and a string
def numbers(count, string)
    # Return an re.search for exactly x(count) numbers in the string
    return re.search(r'\d' * count, string)

This will search the string for numbers if its reapeated x(count) times i.e if count is 3 it will look for 3 numbers. If for example the string is 'postman pat 123' it will find 123