how to loop through files in python code example

Example 1: iterate through all files in directory python

import os
directory = 'the/directory/you/want/to/use'

for filename in os.listdir(directory):
    if filename.endswith(".txt"):
      #do smth
      continue
    else:
    continue

Example 2: python loop through files in directory

import os

for filename in os.listdir(directory):
    if filename.endswith(".asm") or filename.endswith(".py"): 
         # print(os.path.join(directory, filename))
        continue
    else:
        continue

Example 3: loop through file python

with open('topology_list.txt') as topo_file:
    for line in topo_file:
        print line,  # The comma to suppress the extra new line char