Count number of files with certain extension in Python

Question

I am fairly new to Python and I am trying to figure out the most efficient way to count the number of .TIF files in a particular sub-directory.

Doing some searching,

Answer 1

For this particular use case, if you don't want to recursively search in the subdirectory, you can use os.listdir:

len([f for f in os.listdir(myPath) 
     if f.endswith('.tif') and os.path.isfile(os.path.join(myPath, f))])