Switch 32-bit GDAL to 64-bit GDAL

import os, sys
print sys.prefix #Python location

#change GDAL_DATA for 64-bit version

gdalData64 = 'C:\Program Files\GDAL\gdal-data' #path to 64-bit GDAl data
os.environ['GDAL_DATA'] = gdalData64 #change value of GDAL_DATA
print os.environ['GDAL_DATA']

#change PATH for 64-bit version

pathVar32 = 'C:\Program Files (x86)\GDAL' #path to 32-bit GDAL
pathVar64 = 'C:\Program Files\GDAL' #path to 64-bit GDAL
if pathVar32 in os.environ['PATH']: #if 32-bit GDAL path is found
    os.environ['PATH'] = os.environ['PATH'].replace(pathVar32, pathVar64) #switch 32-bit GDAL to 64-bit GDAL

print os.environ['PATH']

#import should work now
import ogr, gdal