Python Pandas add Filename Column CSV
Mike's answer above works perfectly. In case any googlers run into the following error:
>>> TypeError: cannot concatenate object of type "<type 'str'>"; only pd.Series, pd.DataFrame, and pd.Panel (deprecated) objs are validIt's possibly because the separator is not correct. I was using a custom csv file so the separator was ^. Becuase of that I needed to include the separator in the pd.read_csv call.
import osfor csv in globbed_files: frame = pd.read_csv(csv, sep='^') frame['filename'] = os.path.basename(csv) data.append(frame)