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Python Regular Expressions in Python Introduction to Regular Expressions Escapes

SUDHARSAN CHAKRAVARTHI
PLUS
SUDHARSAN CHAKRAVARTHI
Courses Plus Student 2,434 Points
Posted by SUDHARSAN CHAKRAVARTHI
SUDHARSAN CHAKRAVARTHI
Courses Plus Student 2,434 Points

Regular Expresion : Challenge Task 2

Now, write a function named numbers() that takes two arguments: a count as an integer and a string. Return a match for exactly count numbers in the string. Remember, you can multiply strings and integers to create your pattern.

For the above task : Did the below code is right ?... not able to trace the issue?..

def numbers(count, str): return re.match(r'\w' * count, str)

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

def numbers(count, str):
  return re.search(r'\w' * count,str)

2 Answers

Ken Alger
STAFF
Ken Alger
Treehouse Teacher
Ken Alger
Ken Alger
Treehouse Teacher

Sudharsan;

I think we are supposed to be looking for \d numbers (digits) and not \w alphanumerics. :wink:

Post back if you are still stuck.

Ken

SUDHARSAN CHAKRAVARTHI
PLUS
SUDHARSAN CHAKRAVARTHI
Courses Plus Student 2,434 Points
SUDHARSAN CHAKRAVARTHI
SUDHARSAN CHAKRAVARTHI
Courses Plus Student 2,434 Points

Hi,

Thanks for your response. But still stuck. We are looking for a character and that needs to be multiplied by count number of times...

i don't know where am i wrong ..?.