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Python Regular Expressions in Python Introduction to Regular Expressions Escapes

position argument

I can't understand what is position argument. And, I don't know why it doesn't work.;(

import re

first_number = re.search("r.\d")

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

The challenge asks you to create a function called first_number. You’ve created a named variable instead.

The error Bummer: TypeError: search() missing 1 required positional argument: 'string' refers to the search method that takes two arguments, the pattern and a string to apply the pattern to.

Your function will take one argument. This argument will be the string to use in the search call.

Also, in the pattern, the r should prefix the string, and not be inside the string.

Post back if you need more help. Good luck!!!

Thank you for your kind apply!