spyder: 2.2.5 -> 2.3.6

[FRidh]

This upgrades spyder to the latest version.

Currently, spyder on Nix is only available for Python 2 while it can work with Python 3 as well.
Therefore, I added spyder = callPackage ../applications/science/spyder {};.

The module rope is recommended but not (yet) ported to Python 3. Therefore, I removed it from the list of requirements. It might be nice to optionally add it for Python 2. Also, how to handle the rope option on the top?

It built and worked fine on Python 3. However, on Python 2 installation failed with error: option --old-and-unmanageable not recognized.

[bjornfor]

So this changes spyder (effectively) from a python2 app to a python3 app?

[FRidh]

Well, it gives the possibility to have it as both Python 2 and Python 3 app. However, in this PR Python 2 is broken, therefore, still WIP. So effectively, yes.

[FRidh]

@bjornfor Builds and runs on 2.7, 3.3 and 3.4

[bjornfor]

I thought this would work:

  spyder = callPackage ../applications/science/spyder {
    rope = if isPy3k then null else rope;
  };

but it didn't:

$ time nox-review wip --against HEAD~1
error: while querying the derivation named ‘spyder-2.3.6’:
while evaluating the attribute ‘propagatedNativeBuildInputs’ of the derivation ‘spyder-2.3.6’ at /home/bfo/proj/code/forks/nixpkgs/pkgs/development/python-modules/generic/default.nix:65:3:
undefined variable ‘rope’ at /home/bfo/proj/code/forks/nixpkgs/pkgs/top-level/python-packages.nix:13276:37

[bjornfor]

Doh, I just had to use "self.rope" instead of "rope" :-)

[bjornfor]

Spyder with python3 fails to start:

$ /nix/store/s3ipql0iijfir98akcv53wa4mb66079x-spyder-2.3.6/bin/spyder3
Traceback (most recent call last):
  File "/nix/store/s3ipql0iijfir98akcv53wa4mb66079x-spyder-2.3.6/bin/.spyder3-wrapped", line 3, in <module>
    from spyderlib import start_app
  File "/nix/store/s3ipql0iijfir98akcv53wa4mb66079x-spyder-2.3.6/lib/python3.3/site-packages/spyderlib/start_app.py", line 13, in <module>
    from spyderlib.config import CONF
  File "/nix/store/s3ipql0iijfir98akcv53wa4mb66079x-spyder-2.3.6/lib/python3.3/site-packages/spyderlib/config.py", line 22, in <module>
    from spyderlib.utils import iofuncs, codeanalysis
  File "/nix/store/s3ipql0iijfir98akcv53wa4mb66079x-spyder-2.3.6/lib/python3.3/site-packages/spyderlib/utils/iofuncs.py", line 163, in <module>
    import scipy.io as spio
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/io/__init__.py", line 85, in <module>
    from .matlab import loadmat, savemat, whosmat, byteordercodes
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/io/matlab/__init__.py", line 13, in <module>
    from .mio import loadmat, savemat, whosmat
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/io/matlab/mio.py", line 12, in <module>
    from .miobase import get_matfile_version, docfiller
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/io/matlab/miobase.py", line 22, in <module>
    from scipy.misc import doccer
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/misc/__init__.py", line 58, in <module>
    from .pilutil import *
  File "/nix/store/6spjrd6ypf3fdx55fpnj6xikln9mrgav-python3.3-scipy-0.15.1/lib/python3.3/site-packages/scipy/misc/pilutil.py", line 19, in <module>
    from PIL import Image, ImageFilter
  File "/nix/store/09mp30m5fpp0dmi3nvp5abxlqi4gsy09-python2.7-PIL-1.1.7/lib/python2.7/site-packages/PIL/Image.py", line 57
    except ImportError, v:
                      ^
SyntaxError: invalid syntax

[bjornfor]

No, that was my bad, I had PYTHONPATH pointing to python2 stuff. It starts fine.

[bjornfor]

I split the commit in two and pushed to master (dbc7e0f, ab6af31). Thanks.

[FRidh]

Thanks for merging. I see you now added rope to the Py2 version. That's indeed a bit nicer for the Py2 users :)