GraphicsContextArray缺少其__swig_setMethods__属性

Question

移植了我的特征/ui/chaco/enable/enable 项目从python2到python3，我会遇到以下错误，我有一个错误困难的故障排除。我希望有人可能有一个提出进步的建议。

谢谢！
-db
：(

Traceback (most recent call last):
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/enable/qt4/base_window.py", line 213, in paintEvent
    self.handler.paintEvent(event)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/enable/qt4/base_window.py", line 65, in paintEvent
    self._enable_window._paint(event)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/enable/abstract_window.py", line 462, in _paint
    self._gc = self._create_gc(size)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/enable/qt4/image.py", line 23, in _create_gc
    bottom_up = 0)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/kiva/agg/__init__.py", line 40, in __init__
    bottom_up)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/kiva/agg/agg.py", line 888, in __init__
    _swig_setattr(self, GraphicsContextArray, 'this', obj)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/kiva/agg/agg.py", line 39, in _swig_setattr
    return _swig_setattr_nondynamic(self, class_type, name, value, 0)
  File "/anaconda3/envs/pybert64/lib/python3.7/site-packages/kiva/agg/agg.py", line 29, in _swig_setattr_nondynamic
    method = class_type.__swig_setmethods__.get(name, None)
AttributeError: type object 'GraphicsContextArray' has no attribute '__swig_setmethods__'

我的包装版本：

dbanas@davids-mbp:~/Documents/Projects/PyBERT
$ conda list | grep 'traitsui|traits|chaco|enable|swig'
chaco                     4.8.0                    py37_0    local
enable                    4.8.0              pyh7b7c402_0    local
swig                      3.0.12               h1cb45b9_3
traits                    5.1.1            py37h1de35cc_0
traitsui                  6.1.1                      py_0

Answer 1

这是由于swig版本所致。为了构建 enable 包，swig v4 不工作工作；使用V3。