Package: cython
Version: 0.28.4-1
Severity: grave
Tags: upstream patch
Justification: renders package unusable
Dear Maintainer,
While building and testing an update to lasagne, I got the following
error, which I have tracked down to cython.
```
E Exception: ('The following error happened while compiling the node',
forall_inplace,cpu,scan_fn}(Elemwise{sub,no_inplace}.0,
Subtensor{int64:int64:int64}.0, IncSubtensor{InplaceSet;:int64:}.0,
Join.0), '\n', 'Compilation failed (return status=1):
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:
In function ‘void __Pyx__ExceptionSave(PyThreadState*, PyObject**,
PyObject**,
PyObject**)’:.
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:12749:21:
error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named
‘exc_type’; did you mean ‘curexc_type’?. *type = tstate->exc_type;.
^~~~~~~~.
curexc_type.
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:12750:22:
error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named
‘exc_value’; did you mean ‘curexc_value’?. *value =
tstate->exc_value;. ^~~~~~~~~.
curexc_value.
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:12751:19:
error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named
‘exc_traceback’; did you mean ‘curexc_traceback’?. *tb =
tstate->exc_traceback;. ^~~~~~~~~~~~~.
curexc_traceback.
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:
In function ‘void __Pyx__ExceptionReset(PyThreadState*, PyObject*,
PyObject*,
PyObject*)’:.
/<<BUILDDIR>>/lasagne-0.1+git20181019.a61b76f/.pybuild/compiledir_Linux-4.15--generic-x86_64-with-debian-buster-sid--3.7.2rc1-64/scan_perform/mod.cpp:12758:24:
error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named
‘exc_type’; did you mean ‘curexc_type’?. tmp_type =
tstate->exc_type;. ^~~~~~~~.
```
Lasagne uses theano, which run-time compiles Python extensions using
cython. When used with python 3.7, cython generates code containing
references to members of PyThreadState that do not exist. This seems
to be related to an upstream bug which has been fixed:
https://github.com/cython/cython/issues/1955
Therefore, I recommend upgrading the cython package to the latest
release which is only a couple of weeks old. I have provided a merge
request for this update here:
https://salsa.debian.org/python-team/applications/cython/merge_requests/2
regards,
Steve
-- System Information:
Debian Release: buster/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.15.0-42-generic (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: unable to detect
Versions of packages cython depends on:
ii libc6 2.28-2
ii python 2.7.15-3
Versions of packages cython recommends:
ii gcc 4:8.2.0-2
ii python-dev 2.7.15-3
Versions of packages cython suggests:
pn cython-doc <none>
-- no debconf information
