charref() maybe throw OverflowError: Python int too large to convert to C int

[liujuncn]

in charref():
if name[0] in ["x", "X"]: c = int(name[1:], 16) else: c = int(name)
if name like "xabcdeabcdeabcdeabcde" will cause chr(c) throw OverflowError.

[liujuncn]

I simply fixed it with:
c = int(name[1:5], 16)