NameError: global name 'xrange' is not defined in Python 3
You are trying to run a Python 2 codebase with Python 3. xrange()
was renamed to range()
in Python 3.
Run the game with Python 2 instead. Don't try to port it unless you know what you are doing, most likely there will be more problems beyond xrange()
vs. range()
.
For the record, what you are seeing is not a syntax error but a runtime exception instead.
If you do know what your are doing and are actively making a Python 2 codebase compatible with Python 3, you can bridge the code by adding the global name to your module as an alias for range
. (Take into account that you may have to update any existing range()
use in the Python 2 codebase with list(range(...))
to ensure you still get a list object in Python 3):
try:
# Python 2
xrange
except NameError:
# Python 3, xrange is now named range
xrange = range
# Python 2 code that uses xrange(...) unchanged, and any
# range(...) replaced with list(range(...))
or replace all uses of xrange(...)
with range(...)
in the codebase and then use a different shim to make the Python 3 syntax compatible with Python 2:
try:
# Python 2 forward compatibility
range = xrange
except NameError:
pass
# Python 2 code transformed from range(...) -> list(range(...)) and
# xrange(...) -> range(...).
The latter is preferable for codebases that want to aim to be Python 3 compatible only in the long run, it is easier to then just use Python 3 syntax whenever possible.
in python 2.x, xrange is used to return a generator while range is used to return a list. In python 3.x , xrange has been removed and range returns a generator just like xrange in python 2.x. Therefore, in python 3.x you need to use range rather than xrange.
add xrange=range
in your code :) It works to me.
I solved the issue by adding this import
More info
from past.builtins import xrange