Installing in Arch Linux

[Federico Barabas]

Hi everyone!

I use Arch Linux. I installed spyder 2.3.0dev6 from source because building from AUR failed for me. It runs fine but it gets into Python 2.7 mode. How can I use it with Python 3? I know this version supports it.

thank you,

Federico

[Carlos Córdoba]

Hi Federico,

If you installed Spyder from source, I guess you ran

python setup.py install

to do it. But to install it with Python 3 you need to run

python3 setup.py install

If this doesn't work, another thing you can do is to change the default interpreter to point to Python 3. For that you have to open

/usr/local/bin/spyder

and change its first line to point to it.

Hope this helps,
Carlos

El 09/10/13 17:21, Federico Barabas escribió:

--
You received this message because you are subscribed to the Google Groups "spyder" group.
To unsubscribe from this group and stop receiving emails from it, send an email to spyderlib+...@googlegroups.com.
To post to this group, send email to spyd...@googlegroups.com.
Visit this group at http://groups.google.com/group/spyderlib.
For more options, visit https://groups.google.com/groups/opt_out.

[David Verelst]

Hi Federico,

I am using the spyder-hg package from the AUR on Arch Linux, and almost rebuild the package on a daily basis. Why is your build failing, do you have any useful error messages?

Remember that on Arch Linux the default Python installation is version 3. So python refers to python3 and python2 to python2. For installing spyder directly from source for Python 3 would be:
python setup.py install.

Regards,
David

[Federico Barabas]

Hi! Thank you for your answers

Exactly, in Arch the python command means python3. This is way I get:

$ python setup.py install

running install

running build

running build_py

running build_scripts

running build_doc

Running Sphinx v1.1.3

loading pickled environment... done

building [html]: targets for 18 source files that are out of date

updating environment: 0 added, 0 changed, 0 removed

looking for now-outdated files... none found

preparing documents... done

Traceback (most recent call last):                                              

  File "setup.py", line 224, in <module>

    cmdclass=CMDCLASS)

  File "/usr/lib/python3.3/distutils/core.py", line 148, in setup

    dist.run_commands()

  File "/usr/lib/python3.3/distutils/dist.py", line 917, in run_commands

    self.run_command(cmd)

  File "/usr/lib/python3.3/distutils/dist.py", line 936, in run_command

    cmd_obj.run()

  File "/usr/lib/python3.3/distutils/command/install.py", line 569, in run

    self.run_command('build')

  File "/usr/lib/python3.3/distutils/cmd.py", line 313, in run_command

    self.distribution.run_command(command)

  File "/usr/lib/python3.3/distutils/dist.py", line 936, in run_command

    cmd_obj.run()

  File "/usr/lib/python3.3/distutils/command/build.py", line 126, in run

    self.run_command(cmd_name)

  File "/usr/lib/python3.3/distutils/cmd.py", line 313, in run_command

    self.distribution.run_command(command)

  File "/usr/lib/python3.3/distutils/dist.py", line 936, in run_command

    cmd_obj.run()

  File "setup.py", line 105, in run

    setup_command.BuildDoc.run(self)

  File "/usr/lib/python3.3/site-packages/sphinx/setup_command.py", line 143, in run

    app.build(force_all=self.all_files)

  File "/usr/lib/python3.3/site-packages/sphinx/application.py", line 204, in build

    self.builder.build_update()

  File "/usr/lib/python3.3/site-packages/sphinx/builders/__init__.py", line 196, in build_update

    'out of date' % len(to_build))

  File "/usr/lib/python3.3/site-packages/sphinx/builders/__init__.py", line 252, in build

    self.write(docnames, list(updated_docnames), method)

  File "/usr/lib/python3.3/site-packages/sphinx/builders/__init__.py", line 291, in write

    doctree = self.env.get_and_resolve_doctree(docname, self)

  File "/usr/lib/python3.3/site-packages/sphinx/environment.py", line 1230, in get_and_resolve_doctree

    doctree = self.get_doctree(docname)

  File "/usr/lib/python3.3/site-packages/sphinx/environment.py", line 1215, in get_doctree

    doctree = pickle.load(f)

AttributeError: 'str' object has no attribute '__dict__'

After this, I googled a bit and I found someone saying that it should be installed with python2, so I did $python2 setup.py install and it went through ok but spyder was always running in python2.7 mode and that was when I wrote to you.

Following Carlos' guide, I changed python2 to python in /usr/bin/spyder first line. Now spyder doesn't open, I get this error:

$ spyder

Traceback (most recent call last):

  File "/usr/bin/spyder", line 2, in <module>

    from spyderlib import start_app

  File "/usr/lib/python3.3/site-packages/spyderlib/start_app.py", line 12, in <module>

    from spyderlib.baseconfig import get_conf_path

  File "/usr/lib/python3.3/site-packages/spyderlib/baseconfig.py", line 183

    except IOError, _e:  # analysis:ignore

                  ^

SyntaxError: invalid syntax

Installing from AUR the package spyder-hg gets me to the same situation as doing the above :-(

[David Verelst]

The Python 3 build seems to fail because Sphinx in Python3 throws an error when building the documentation and I can replicate this on my system. I'll see if I can figure out a fix later during the weekend.

Regards,
David

[David Verelst]

I am not sure why PY3 Sphinx v1.1.3 fails to build the documentation for Spyder. The trace back didn't help me unfortunately. However, the problem is fixed for my by installing Sphinx from their repositories using the python-sphinx-hg package from the AUR. So, without any knowledge of what the problem is exactly, I would conclude that it is a Sphinx bug and it is already resolved upstream.

Can anybody else confirm that documentation for Spyder fails to build with Python 3 and Sphinx 1.1.3?

Regards,
David

[Federico Barabas]

Hi David and Carlos

Thank you very much, thank's to you I'm now running spyder with python3.3. These are the steps I did following your guide (and in case someone is having the same problem and ends up here):

1. Install python-sphinx-hg from AUR
2. sudo rm -r /usr/lib/python3.3/site-packages/spyder* (this was needed to clean up the previous installation attempts)
   
3. install spyder from source with sudo python setup.py install
4. edit /usr/bin/spyder to change python2 to python3

thanks again!

[Federico Barabas]

Just for the record, I installed the optional dependencies through pip and with rope I had a similar problem to the sphinx issue, which cause that spyder couldn't run. The solution was also the same: installing python-rope from AUR fixed it