Concatenate two CSV files

match.py

import csv
import pandas as pd

totalEnroll = pd.read_csv("Total-Enrollment.csv")
interEnroll = pd.read_csv("Inter-Enrollment.csv")
totalArray = []

for rowtotal in totalEnroll.iterrows():
    for rowinter in interEnroll.iterrows():

        if str(rowinter[1][0]) in rowtotal[1][0]:
            totalArray.append((str(rowinter[1][0]),rowtotal[1][0],rowtotal[1][1],rowinter[1][1]))

df = pd.DataFrame(totalArray)
df.to_csv(path_or_buf='output.csv', header=True, index=False)