text: #!/usr/bin/env python3
  
  import pandas as pd
  globe_file = 'GLOBEMeasurementData-9252.csv'
  colnames = [' latitude', ' longitude', ' measured_on', ' nitrates:nitrate and nitrite (mgl)']
  df_ndata = pd.read_csv(globe_file, sep=',', usecols=colnames)
  df_ndata.columns = df_ndata.columns.str.strip()
  j_data = df_ndata.to_json('nitrate_place_data.json', orient='records')
  
  
  
  # if __name__ == "__main__":
  #     import argparse
  #
  #     parser = argparse.ArgumentParser(
  #     parser.add_argument('year', type=int, help='year')
  
  
  #         description='get data from map to return nitrate data')