import pandas as pd from datetime import datetime import os dboxData = '/Volumes/Hotel/Dropbox/GIS/Data/Municipal/USA/New_York/New_York_City/Taxi/tripData2013/' d = dboxData outfolder = '/Users/danielmsheehan/Desktop/data/tables/' o = outfolder start = datetime(2013, 1, 1) end = datetime(2013, 12, 31) daterange = pd.date_range(start, end) for i in daterange: z = i.strftime("%Y%m%d") m = z[4:6] m = m.lstrip('0') print z print m df = pd.read_csv(o+z+'.csv') df = df[['tuid','pickup_longitude','pickup_latitude']] df['lng'] = df['pickup_longitude'] df['lat'] = df['pickup_latitude'] df = df[['tuid','lng','lat']] df.to_csv(o+'p/'+z+'.csv', index=False) df = pd.read_csv(o+z+'.csv') df = df[['tuid','dropoff_longitude','dropoff_latitude']] df['lng'] = df['dropoff_longitude'] df['lat'] = df['dropoff_latitude'] df = df[['tuid','lng','lat']] df.to_csv(o+'d/'+z+'.csv', index=False)