convert a csv file into a json list of dicts

csv2json.py

import pandas as pd
import json
import sys

def csv2json(file_path):
  df = pd.read_csv(file_path, encoding='latin1')

  output = [] 
  for i in df.index:
    row = {}
    for k in df.keys():
      row[k] = df[k][i]
    output.append(row)

  json.dumps(output)

if __name__ == '__main__':
  csv2json(sys.argv[1])