我正在使用 Google Maps API 研究 PyMaps，这是我从 http://www.lonelycode.com/2008/12/04/google-maps-and-django/
def showmap():
from pymaps import Map, PyMap # import the libraries
# Create a map - pymaps allows multiple maps in an object
tmap = Map()
tmap.zoom = 3
# Latitude and lognitude - see the getcords function
# to see how we convert from traditional D/M/S to the DD type
# used by Googel Maps
lat = 0.0
long = 0.0
# These coordinates are for Hong Kong
dlat = "22 15 0 N"
dlong = "114 10 60 E"
dlat = dcode.lat.split(" ")
dlong = dcode.long.split(" ")
# Convert the coordinates
lat = getcords(float(dlat[0]), float(dlat[1]), float(dlat[2]), dlat[3])
long = getcords(float(dlong[0]), float(dlong[1]), float(dlong[2]), dlong[3])
# Inserts html into the hover effect
pointhtml = "Hello!"
# Add the point to the map
point = (lat, long, pointhtml, icon.id)
tmap.setpoint(point)
tmap.center = (1.757537,144.492188)
# Put your own googl ekey here
gmap = PyMap(key=GOOGLE_KEY, maplist=[tmap])
gmap.addicon(icon)
# pymapjs exports all the javascript required to build the map!
mapcode = gmap.pymapjs()
# Do what you want with it - pass it to the template or print it!
return mapcode
问题是当我运行程序时出现错误，我得到“NameError: global name 'dcode' is not defined” dcode 究竟是什么，我在哪里可以找到它？是打错了吗？
请您参考如下方法:
我猜应该是这样的:
# These coordinates are for Hong Kong
dlat = "22 15 0 N"
dlong = "114 10 60 E"
dlat = dlat.split(" ")
dlong = dlong.split(" ")
如果您还没有在任何地方导入 getcords 函数，您可能会在这里遇到麻烦。
# Convert the coordinates
lat = getcords(float(dlat[0]), float(dlat[1]), float(dlat[2]), dlat[3])
long = getcords(float(dlong[0]), float(dlong[1]), float(dlong[2]), dlong[3])
另外，我建议不要使用 long 作为变量名，因为它是 int 类型。
In [98]: long?
Type: type
String Form:<type 'long'>
Namespace: Python builtin
