Cython not found

[tayral]

Hi, When trying to compile branch 1.0, I get the following error:

[ 86%] Generating wrap_GF3_by_cython.cpp /bin/sh: 1: /$HOME/Install/mypython/bin/cython: not found make[2]: * [pytriqs/base/gf/local/wrap_GF3_by_cython.cpp] Error 127 make[1]: * [pytriqs/base/gf/local/CMakeFiles/cython_GF3.dir/all] Error 2 make: *\ [all] Error 2

I do have cython installed in /usr/bin/cython, while /$HOME/Install/mypython/ is where virtualenv installs python dependencies. Attempting to symbolically link /usr/bin/cython to the other directory does not solve the problem.

Do you have any idea to solve this issue?

Thanks, Thomas

[aichhorn]

I had a similar problem, because my cython was in /usr/local/bin and not in /usr/bin/. I changed the cmake variable CYTHON_EXECUTABLE to the correct path before compiling, and then it worked. Maybe this also solves your problem.

[tayral]

Hi Markus, This seems to have worked as far as cython detection is concerned, but now I am getting:

[ 86%] Generating wrap_GF3_by_cython.cpp

Error compiling Cython file:
------------------------------------------------------------
...
from tools import py_deserialize

cdef class TailGf:
    cdef tail _c
             ^
------------------------------------------------------------

/home/tayral/Work/TRIQS-github/src/pytriqs/base/gf/local/tail.pyx:4:14: C++ classes not allowed as members of an extension type, use a pointer or reference instead

I checked that I have the latest version of cython installed. Do you know where this comes from?

Thanks, Thomas

[aichhorn]

I had the same here. I had the ubuntu LTS repository version installed, which is 0.15.1. In fact, you need at least 0.17. I installed the 0.18 version with easy_install from cython.org, then it worked.

[tayral]

That did the trick. Thanks a lot

Thomas