from PIL import Image
import os

mapfile = "C:\\Users\\Administrator\\Desktop\\1.wmf"

im = Image.open(mapfile)
path = str(os.path.dirname(mapfile))
onlyfilename, ext = os.path.splitext(os.path.basename(mapfile))
str_onlyfilename = str(onlyfilename)

im.save(path + '\\'+ str_onlyfilename + '.png', quality=95)