Make glob directory variable

Question

I'm trying to write a Python script that searches a folder for all files with the .txt extension. In the manuals, I have only seen it hardcoded into glob.glob("hardcoded path").

How do I make the directory that glob searches for patterns a variable? Specifically: A user input.

This is what I tried:

import glob

input_directory = input("Please specify input folder: ") 
txt_files = glob.glob(input_directory+"*.txt")
print(txt_files)

Despite giving the right directory with the .txt files, the script prints an empty list [ ].

Answer 1

If you are not sure whether a path contains a separator symbol at the end (usually '/' or '\'), you can concatenate using os.path.join. This is a much more portable method than appending your local OS's path separator manually, and much shorter than writing a conditional to determine if you need to every time:

import glob
import os

input_directory = input('Please specify input folder: ') 
txt_files = glob.glob(os.path.join(input_directory, '*.txt'))
print(txt_files)