python - 在 python 2.7 中导入 cplex 12.5 模块会产生 unicode 错误

Question

我在 RHEL6.3 机器（x86 64 位）上安装了 CPLEX 12.5，它似乎运行良好。但是，当我尝试使用Python API时，出现以下错误：

>>> import cplex
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "cplex/__init__.py", line 43, in <module>
    import callbacks
  File "cplex/callbacks.py", line 48, in <module>
    from _internal._aux_functions import apply_freeform_two_args, apply_freeform_one_arg
  File "cplex/_internal/__init__.py", line 22, in <module>
    import _list_array_utils
  File "cplex/_internal/_list_array_utils.py", line 13, in <module>
    import _pycplex as CPX
  File "cplex/_internal/_pycplex.py", line 19, in <module>
    _pycplex_platform = swig_import_helper()
  File "cplex/_internal/_pycplex.py", line 15, in swig_import_helper
    _mod = imp.load_module('_pycplex_platform', fp, pathname, description)
  File "cplex/_internal/_pycplex_platform.py", line 39, in <module>
    from cplex._internal.py1013_cplex125 import *
ImportError: cplex/_internal/py1013_cplex125.so: undefined symbol: PyUnicodeUCS4_Decode

关于我可能做错了什么的任何指示？

[~] python -c 'import struct; print struct.calcsize("P") * 8'
64

Answer 1

我发现出了什么问题。Python 的Unicode 构建类型不正确：

>>> import sys;print((sys.maxunicode<66000)and'UCS2'or'UCS4')
UCS2

所以我使用重新编译它--enable-unicode=ucs4，现在模块导入正常。