Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python for File Systems Navigation Dir Contents

What is wrong with my code?

Create a function named dir_contains takes a path to a directory and a list of file names. If all of the file names exist within that directory, return True, otherwise, return False.

contents.py
import os

def dir_contains(path, names):
    files = os.listdir(path)
    amount = len(names)
    current = 0
    for name in names:
        if name in files:
            current += 1
    if amount=current:
        return True
    else:
        return False

1 Answer

Steven Parker
Steven Parker
231,126 Points

You're really close! But the operator to compare for equality is "==". Just one "=" is an assignment operator.