I am working on a branch of PyPy 2.7 to support Pandas (default PyPy is
missing some CAPI support that enables the parts of cython used in Pandas).
Pandas code has these lines (in lib.pyx)
try:
from cpython cimport PyString_GET_SIZE
except ImportError:
from cpython cimport PyUnicode_GET_SIZE as PyString_GET_SIZE
For some reason, PyPy fails to cimport PyString_GET_SIZE, but
successfully cimports PyUnicode_GET_SIZE.
The substitution causes problems for PyPy, I could solve those in a
different way, but I would like to understand what is going on.
My cython Foo is improving but still too weak to understand why the
cimport fails, could someone help me out with a hint?
Matti
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