How do I merge two CSV files based on field and keep same number of attributes on each record?

Question

I am attempting to merge two CSV files based on a specific field in each file.

file1.csv

id,attr1,attr2,attr3
1,True,7,\"Purple\"
2,Fal         


        

Answer 1

You can use pandas to do this:

import pandas

csv1 = pandas.read_csv('filea1.csv')
csv2 = pandas.read_csv('file2.csv')
merged = csv1.merge(csv2, on='id')
merged.to_csv("output.csv", index=False)

I haven't tested this yet but it should put you on the right track until I can try it out. The code is quite self-explanatory; first you import the pandas library so that you can use it. Then using pandas.read_csv you read the 2 csv files and use the merge method to merge them. The on parameter specifies which column should be used as the "key". Finally, the merged csv is written to output.csv.