Function for examine content of directory

[Tigerstyle]

Ok I'm now totally stuck.

This is the code:

---
import os
from collections import Counter
 
path = ":c\\mypath\dir"
dirs = os.listdir( path )
filenames = {"this.txt", "that.txt", "the_other.txt","this.doc","that.doc","this.pdf","first.txt","that.pdf"}
extensions = []
for filename in filenames:
    f = open(filename, "w")
    f.write("Some text\n")
    f.close()
    name , ext = os.path.splitext(f.name)
    extensions.append(ext)

# This would print all the files and directories
for file in dirs:
    print(file)



for ext, count in Counter(extensions).items(): 
    print("Count for %s: " % ext, count) 

---

I need to make this module into a function and write a separate module to verify by testing that the function gives correct results.

Help and pointers are much appreciated.

T