make fails to cythonize pymoses

[Maxim Smirnov]

makeing moses fails at this particular spot:

[ 92%] Built target eval-diversity
[ 94%] Built target moses-exec
[ 94%] Built target moses-man
[ 96%] Built target eval-features
[ 98%] Built target fs-main
[ 98%] Built target feature-man
[ 98%] Cythonizing pymoses.pyx

Error compiling Cython file:

...
raise MosesException('Error: eval method
requires a list of input '
'values.')

    namespace = {}
    exec self.program in namespace
        ^

---

/home/me/opencog/moses/moses/cython/opencog/pymoses.pyx:34:13: Syntax error in simple statement list
moses/cython/opencog/CMakeFiles/moses_cython.dir/build.make:62: recipe for target 'moses/cython/opencog/pymoses.cpp' failed

My guess is that cython somehow gets confused by namespace being an empty dictionary, but I know next to no cython myself and so am probably wrong.

[Vitaly Bogdanov]

@StrangeTcy , just random thought it can be difference between python2, python3 syntax.