HK80坐标转为WGS84坐标python

from hk80 import LatLon, HK80
import os
import pandas as pd

os.chdir('D:\workspace\')

hk80file='CoorTrans.csv'
hk80f=pd.read_csv(hk80file)
output=[]

for i in range(len(hk80f)):
    filename=hk80f['CoordinateID'][i]
    northing=float(hk80f.iloc[i,1])
    easting=float(hk80f.iloc[i,2])
    hku=HK80(northing, easting).to_wgs84()
    wgs84x=hku.x
    wgs84y=hku.y
    output.append([filename, wgs84x, wgs84y])

outputdf=pd.Dataframe(output, columns=['CoordinateID', 'WGS84X', 'WGS84Y'])
outputdf.to_csv('transformed.csv')