Python Pandas add Filename Column CSV

Question

My python code works correctly in the below example. My code combines a directory of CSV files and matches the headers. However, I want to take it a step further - how do I

Answer 1

This should work:

import os

for csv in globbed_files:
    frame = pd.read_csv(csv)
    frame['filename'] = os.path.basename(csv)
    data.append(frame)

frame['filename'] creates a new column named filename and os.path.basename() turns a path like /a/d/c.txt into the filename c.txt.