pandas 0.23.2 fails to build on top of Python 3.7.0 (while 0.23.1 works fine)
After seeing the release announcement for pandas 0.23.2 where is was mentioned that this is the first release supporting Python 3.7.0, I looked into switching from pandas 0.23.1 which we were planning to use to 0.23.2 (cfr. https://github.com/easybuilders/easybuild-easyconfigs/pull/6480).

However, I'm seeing compilation problems with pandas 0.23.2 on top of (a self-built) Python 3.7.0 (which are *not* there when building/installing pandas 0.23.1):

```
$ python -V
Python 3.7.0
$ cd pandas-0.23.2
$ python setup.py build
...
running build_ext
skipping 'pandas/_libs/algos.c' Cython extension (up-to-date)
building 'pandas._libs.algos' extension
creating build/temp.linux-x86_64-3.7
creating build/temp.linux-x86_64-3.7/pandas
creating build/temp.linux-x86_64-3.7/pandas/_libs
gcc -DNDEBUG -g -fwrapv -O3 -Wall -O2 -ftree-vectorize -march=native -fno-math-errno -fPIC -I/software/OpenBLAS/0.3.1-GCC-7.3.0-2.30/include -I/software/ScaLAPACK/2.0.2-gompi-2018b-OpenBLAS-0.3.1/include -I/software/FFTW/3.3.8-gompi-2018b/include -fPIC -Ipandas/_libs/src/klib -Ipandas/_libs/src -I/software/Python/3.7.0-foss-2018b/lib/python3.7/site-packages/numpy-1.14.5-py3.7-linux-x86_64.egg/numpy/core/include -I/software/Python/3.7.0-foss-2018b/include/python3.7m -c pandas/_libs/algos.c -o build/temp.linux-x86_64-3.7/pandas/_libs/algos.o -Wno-unused-function
In file included from /software/Python/3.7.0-foss-2018b/lib/python3.7/site-packages/numpy-1.14.5-py3.7-linux-x86_64.egg/numpy/core/include/numpy/ndarraytypes.h:1816:0,
                 from /software/Python/3.7.0-foss-2018b/lib/python3.7/site-packages/numpy-1.14.5-py3.7-linux-x86_64.egg/numpy/core/include/numpy/ndarrayobject.h:18,
                 from /software/Python/3.7.0-foss-2018b/lib/python3.7/site-packages/numpy-1.14.5-py3.7-linux-x86_64.egg/numpy/core/include/numpy/arrayobject.h:4,
                 from pandas/_libs/algos.c:435:
/software/Python/3.7.0-foss-2018b/lib/python3.7/site-packages/numpy-1.14.5-py3.7-linux-x86_64.egg/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
 #warning "Using deprecated NumPy API, disable it by " \
  ^~~~~~~
pandas/_libs/algos.c: In function ‘__Pyx__ExceptionSave’:
pandas/_libs/algos.c:138911:21: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     *type = tstate->exc_type;
                     ^~~~~~~~
                     curexc_type
pandas/_libs/algos.c:138912:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     *value = tstate->exc_value;
                      ^~~~~~~~~
                      curexc_value
pandas/_libs/algos.c:138913:19: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     *tb = tstate->exc_traceback;
                   ^~~~~~~~~~~~~
                   curexc_traceback
pandas/_libs/algos.c: In function ‘__Pyx__ExceptionReset’:
pandas/_libs/algos.c:138920:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tmp_type = tstate->exc_type;
                        ^~~~~~~~
                        curexc_type
pandas/_libs/algos.c:138921:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tmp_value = tstate->exc_value;
                         ^~~~~~~~~
                         curexc_value
pandas/_libs/algos.c:138922:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tmp_tb = tstate->exc_traceback;
                      ^~~~~~~~~~~~~
                      curexc_traceback
pandas/_libs/algos.c:138923:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tstate->exc_type = type;
             ^~~~~~~~
             curexc_type
pandas/_libs/algos.c:138924:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tstate->exc_value = value;
             ^~~~~~~~~
             curexc_value
pandas/_libs/algos.c:138925:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tstate->exc_traceback = tb;
             ^~~~~~~~~~~~~
             curexc_traceback
pandas/_libs/algos.c: In function ‘__Pyx__GetException’:
pandas/_libs/algos.c:138980:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tmp_type = tstate->exc_type;
                        ^~~~~~~~
                        curexc_type
pandas/_libs/algos.c:138981:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tmp_value = tstate->exc_value;
                         ^~~~~~~~~
                         curexc_value
pandas/_libs/algos.c:138982:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tmp_tb = tstate->exc_traceback;
                      ^~~~~~~~~~~~~
                      curexc_traceback
pandas/_libs/algos.c:138983:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tstate->exc_type = local_type;
             ^~~~~~~~
             curexc_type
pandas/_libs/algos.c:138984:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tstate->exc_value = local_value;
             ^~~~~~~~~
             curexc_value
pandas/_libs/algos.c:138985:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tstate->exc_traceback = local_tb;
             ^~~~~~~~~~~~~
             curexc_traceback
pandas/_libs/algos.c: In function ‘__Pyx_PyCFunction_FastCall’:
pandas/_libs/algos.c:139177:13: error: too many arguments to function ‘(PyObject * (*)(PyObject *, PyObject * const*, Py_ssize_t))meth’
     return (*((__Pyx_PyCFunctionFast)meth)) (self, args, nargs, NULL);
            ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c: In function ‘__Pyx__ExceptionSwap’:
pandas/_libs/algos.c:141175:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tmp_type = tstate->exc_type;
                        ^~~~~~~~
                        curexc_type
pandas/_libs/algos.c:141176:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tmp_value = tstate->exc_value;
                         ^~~~~~~~~
                         curexc_value
pandas/_libs/algos.c:141177:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tmp_tb = tstate->exc_traceback;
                      ^~~~~~~~~~~~~
                      curexc_traceback
pandas/_libs/algos.c:141178:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
     tstate->exc_type = *type;
             ^~~~~~~~
             curexc_type
pandas/_libs/algos.c:141179:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
     tstate->exc_value = *value;
             ^~~~~~~~~
             curexc_value
pandas/_libs/algos.c:141180:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
     tstate->exc_traceback = *tb;
             ^~~~~~~~~~~~~
             curexc_traceback
error: command 'gcc' failed with exit status 1
```

(for what it's worth, I'm, seeing the same problem when building with either GCC 7.3.0 or Intel compilers 2018 update 3, but I don't think that's relevant giving the produced errors)

`numpy` has seem similar issues, see https://github.com/numpy/numpy/issues/10500.

It seems like this issue is caused by a known & fixed bug in `Cython`, cfr. https://github.com/cython/cython/issues/1955.

So the `pandas` 0.23.2 release includes files that were generated using a too old version of `Cython`?

I have the latest `Cython` release installed on top of Python 3.7.0, but the `skipping 'pandas/_libs/algos.c' Cython extension (up-to-date)` tells me it's not being used?