web2py and pylint

[Alan Evangelista]

pylint checks fail on web2py controllers and models because web2py automatically imports several modules/classes/variables at runtime. I assume this is a known issue and there is no workaround?

[Leonel Câmara]

This pylint plugin by Derek seems pretty good

https://pypi.python.org/pypi/pylint-web2py/0.1.1

I have to check how to make SublimeLinter use it because it does get annoying.

[Andy Pardue]

When I was using sublime to develop web2py I would do imports under a False.

This would help with auto complete as well.

I use the pycharm now and it has web2py support that takes care of the way web2py use the libs.

if 0:  # for IDE's to find the imports for the globals

    from gluon.globals import *

    from gluon.html import *

    from gluon.http import *

    from gluon.tools import *

    from gluon.sql import *

    from gluon.validators import *

    from gluon.languages import translator as T

    from gluon.sqlhtml import SQLFORM, SQLTABLE, form_factory

    session = Session()

    request = Request()

    response = Response()

    crud = Crud()

    db = DAL('sqlite://storage.sqlite')

    auth = Auth(globals(), None)

[flagist0]

Hello!
Yes, it is a known issue and there is a pylint plugin to fix it: https://github.com/dsludwig/pylint-web2py
The problem with it is that it relies on old Pylint API, so it doesn't work after version of 1.0

I updated it to support new Pylint (Astroid) API and added ability to find web2py modules (in application modules folder, in gluon etc).
And I sent dsludwig a pull request, but he didn't reply.

So you can find it here: https://github.com/flagist0/pylint-web2py
The easiest way to install it is to use this command:  pip install git+git://github.com/flagist0/pylint-web2py.git

[Massimo Di Pierro]

perhaps we should include this in script?

[flagist0]

On Wednesday, December 10, 2014 7:04:17 AM UTC+4, Massimo Di Pierro wrote:

perhaps we should include this in script?

Pylint expects the plugins to be installed system-wide, so it's better to use this plugin as a separate package.
But I'll register my version of the plugin on PyPI so it can be installed without git.

[Prasad Muley]

Hi Flagist,

         I've installed pylint-web2py plugin by downloading from flagist-pylint-web2py github.

I've checked whether pylint-web2py plugin is successfully installed or not using following command:

$ pip freeze | grep pylint-web2py                                                                                                    [20:22:13]

pylint-web2py==0.1.2

I am getting following an error If I run following commands.

$ pylint -E --load-plugins pylint-web2py applications/asdf/scripts/asdf.py

Traceback (most recent call last):

  File "/usr/local/bin/pylint", line 9, in <module>

    load_entry_point('pylint==1.4.0', 'console_scripts', 'pylint')()

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/__init__.py", line 23, in run_pylint

    Run(sys.argv[1:])

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/lint.py", line 1193, in __init__

    linter.load_plugin_modules(self._plugins)

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/lint.py", line 469, in load_plugin_modules

    module = load_module_from_name(modname)

  File "/usr/local/lib/python2.7/dist-packages/astroid-1.3.2-py2.7.egg/astroid/modutils.py", line 135, in load_module_from_name

    return load_module_from_modpath(dotted_name.split('.'), path, use_sys)

  File "/usr/local/lib/python2.7/dist-packages/astroid-1.3.2-py2.7.egg/astroid/modutils.py", line 177, in load_module_from_modpath

    mp_file, mp_filename, mp_desc = imp.find_module(part, path)

ImportError: No module named pylint-web2py

Or

$ pylint '--load-plugins=pylint-web2py' applications/asdf/scripts/asdf.py                                             

Traceback (most recent call last):

  File "/usr/local/bin/pylint", line 9, in <module>

    load_entry_point('pylint==1.4.0', 'console_scripts', 'pylint')()

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/__init__.py", line 23, in run_pylint

    Run(sys.argv[1:])

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/lint.py", line 1193, in __init__

    linter.load_plugin_modules(self._plugins)

  File "/usr/local/lib/python2.7/dist-packages/pylint-1.4.0-py2.7.egg/pylint/lint.py", line 469, in load_plugin_modules

    module = load_module_from_name(modname)

  File "/usr/local/lib/python2.7/dist-packages/astroid-1.3.2-py2.7.egg/astroid/modutils.py", line 135, in load_module_from_name

    return load_module_from_modpath(dotted_name.split('.'), path, use_sys)

  File "/usr/local/lib/python2.7/dist-packages/astroid-1.3.2-py2.7.egg/astroid/modutils.py", line 177, in load_module_from_modpath

    mp_file, mp_filename, mp_desc = imp.find_module(part, path)

ImportError: No module named pylint-web2py

[Mandar Vaze]

Can you share the entire "pip freeze" output ?

Especially Astoid and logilab-common versions/details ?

https://bitbucket.org/logilab/pylint says "Pylint requires the astroid (the later the better; formerly known as logilab-astng) and logilab-common (version >= 0.53) packages"

This may provide additional clues.

-Mandar

[Prasad Muley]

Hi Mandar,

          I've installed those packages. Pylint is working as expected but Pylint-web2py plugin isn't working as explained above.

$ pip freeze | grep logilab                                                                                                          

logilab-astng==0.24.3

logilab-common==0.63.2

$ pip freeze | grep astroid                                                                                                          

astroid==1.3.2

--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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--

Thanks and Regards
Prasad M. Muley

Programmer at One Delta Synergies Pvt Ltd. | PICT 2013

“Pretty much everything on the web uses those two things: C and UNIX,” - Dennis Ritchie
                               http://www.cs.bell-labs.com/who/dmr/        

[flagist0]

Hello Prasad!
Yes, it is a strange naming convention bug inherited from original project: repository is called pylint-web2py, but the plugin itself is called pylint_web2py (note the underscore).
So you'll have to call pylint like this: pylint -E --load-plugins pylint_web2py applications/asdf/scripts/asdf.py

[Prasad Muley]

Hello Flagist,

           pylint -E --load-plugins pylint_web2py applications/asdf/scripts/asdf.py command. 

My bad to not recognize difference between pylint-web2py and pylint_web2py

Thanks for quick reply.

On Thu, Dec 18, 2014 at 3:20 AM, flagist0 <flag...@gmail.com> wrote:

Hello Prasad!
Yes, it is a strange naming convention bug inherited from original problem: repository is called pylint-web2py, but the plugin itself is called pylint_web2py (note the underscore).
So you'll to call pylint like this: pylint -E --load-plugins pylint_web2py applications/asdf/scripts/asdf.py

On Wednesday, December 17, 2014 7:02:23 PM UTC+4, Prasad Muley wrote:

--

Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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To unsubscribe from this topic, visit https://groups.google.com/d/topic/web2py/db6NRkkMhGw/unsubscribe.
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