带导入robject的python 3.7问题上的rpy2 3.2.0

Question

python 3.7.3，rpy2 3.2.0，以下代码：

from rpy2 import robjects

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File ".virtualenvs/flask3/lib/python3.7/site-packages/rpy2/robjects/__init__.py", line 14, in <module>
    import rpy2.rinterface as rinterface
  File ".virtualenvs/flask3/lib/python3.7/site-packages/rpy2/rinterface.py", line 6, in <module>
    from rpy2.rinterface_lib import openrlib
  File ".virtualenvs/flask3/lib/python3.7/site-packages/rpy2/rinterface_lib/openrlib.py", line 65, in <module>
    _get_dataptr_fallback)
  File ".virtualenvs/flask3/lib/python3.7/site-packages/rpy2/rinterface_lib/openrlib.py", line 50, in _get_symbol_or_fallback
    res = getattr(rlib, symbol)
RuntimeError: found a situation in which we try to build a type recursively.  This is known to occur e.g. in ``struct s { void(*callable)(struct s); }''.  Please report if you get this error and really need support for your case.

这是怎么回事？这看起来像rypy2的标准过程，实际上是我们在python 2下使用它的方式。

同样的问题适用于任何类型的rpy2导入：import rpy2.robjects.tests等。

Answer 1

我遇到了同样的问题，并发现了上面链接的同样的问题@ejolly。为了解决这个问题，我将我的cffi库从降级1.13.0为1.12.3.

pip install cffi==1.12.3

工作起来就像一个魅力。