import of pep257 module in pep257 failed, linter will not run using built in python

[roadhump]

Get error in ST console when package is enabled. Next SublimeLinter still works, but doesn't produce background linting (without any messages in console)

SublimeLinter: pep257 linter loaded 
reloading plugin tern_for_sublime.tern
plugins loaded
SublimeLinter: debug mode: on 
SublimeLinter: find_python(version='3', script=None, module=None) 
SublimeLinter: find_python: requested version = {'minor': None, 'major': 3} 
SublimeLinter: user shell: /bin/zsh 
SublimeLinter: computed PATH using /bin/zsh:
/usr/local/bin
/usr/local/sbin
/usr/bin
/bin
/usr```/sbin
/sbin
/Users/roadhump/.dotfiles/bin
/Users/roadhump/.npm-packages/bin
/Users/roadhump/.ruby/gems/bin
/Users/roadhump/.rvm/bin

SublimeLinter: find_posix_python: python3 => None 
SublimeLinter: find_posix_python: python3 => None 
SublimeLinter: find_posix_python: python => /usr/bin/python 
SublimeLinter: find_python: system python = /usr/bin/python 
SublimeLinter: find_python: available version = {'minor': 7, 'major': 2} 
SublimeLinter: find_python: <= (None, None, 2, 7) 
SublimeLinter: no python 3 available to augment sys.path 
SublimeLinter: WARNING: import of flake8.engine module in flake8 failed, linter will not work with python 3 code 
SublimeLinter: import of pep257 module in pep257 failed, linter will not run using built in python 
Traceback (most recent call last):
  File "/Applications/Sublime Text.app/Contents/MacOS/sublime_plugin.py", line 157, in on_api_ready
    m.plugin_loaded()
  File "/Users/roadhump/Library/Application Support/Sublime Text 3/Packages/SublimeLinter/sublimelinter.py", line 33, in plugin_loaded
    linter.initialize()
  File "/Users/roadhump/Library/Application Support/Sublime Text 3/Packages/SublimeLinter-pep257/linter.py", line 39, in initialize
    cls._checker = cls.module.PEP257Checker()
AttributeError: 'NoneType' object has no attribute 'PEP257Checker'`

pep257 version 0.3.0
python version 2.7.5

[aparajita]

See here: 727deb5#commitcomment-5542020

[nfvs]

@roadhump can you try this latest change using git? I want to verify it before releasing a new version.

[Huarong]

@nfvs I had the same problem. After trying the latest change using git, the error is gone.
But there is still a warning:

Have SublimeClang package: 1.0.41
Have SublimeClang libcache: 1.0.41
reloading plugin SublimeLinter.commands
reloading plugin SublimeLinter.sublimelinter
reloading plugin SublimeLinter-contrib-clang.linter
SublimeLinter: clang linter loaded 
reloading plugin SublimeLinter-flake8.linter
SublimeLinter: flake8 linter loaded 
reloading plugin SublimeLinter-pep257.linter
SublimeLinter: pep257 linter loaded 
plugins loaded
SublimeLinter: debug mode: off 
SublimeLinter: WARNING: import of flake8.engine module in flake8 failed, linter will not work with python 3 code 
SublimeLinter: WARNING: import of pep257 module in pep257 failed, linter will not work with python 3 code 
SublimeLinter: flake8 activated: ('/usr/bin/python', '/usr/local/bin/flake8') 
SublimeLinter: pep257 activated: ('/usr/bin/python', '/usr/local/bin/pep257') 
found 12 files for base name Main.sublime-menu
Package Control: Skipping automatic upgrade, last run at 2014-03-10 21:51:42, next run at 2014-03-10 22:51:42 or after

Ubuntu 12.04, Sublime text 3, python 2.7.3

[nfvs]

@Huarong you can see that that's not PEP257 related, the same happens to the flake8 linter.

I believe you need python3 to use the linters in ST3 as a module, otherwise they're run as a regular console command, which is what those warnings are telling you.

[Huarong]

@nfvs So they are just warnings. Can I just ignore them ? I need to write Python 2.7 code.

[nfvs]

@Huarong as far as I know, yes, but you can have Python 2 and 3 side by side, 'python' should always point to Python 2 anyway.

[Huarong]

@nfvs Thank you for help. Wish you a good day or night.

[nfvs]

Closing since @Huarong verified the fix.