py-spyder @2.3.7 - PyLint plugin reports "Please install pylint" in MacPorts Spyder when pylint is already installed

[nathan.artist@…]

I installed Python 2.7.11 (port python27) and Spyder 2.3.7 (port py-spyder) and all its dependencies. The "Static code analysis" pane in Spyder reports "Please install pylint". But pylint 1.5.3 is already installed (port py27-pylint), and pylint is listed in the "Online help" pane (pydoc). There are symlinks at /opt/local/bin/pylint and /opt/local/bin/pylint-2.7 and both are in my PATH. Everything else except pylint appears to be working in Spyder.

I reported this problem in the Spyder issue tracker and was told that this is something for the MacPorts maintainers to solve; see ​https://github.com/spyder-ide/spyder/issues/2933

MacPorts 2.3.3, Xcode 6.2, OS X 10.9.5

[eborisch (Eric A. Borisch)]

Hmm. It's working for me. Two questions:

1. Output of port contents py27-pylint | grep pylint-2.7
2. Output of os.environ['PATH'] run in a console within Spyder?

[nathan.artist@…]

Replying to eborisch@…:

Hmm. It's working for me. Two questions:

1. Output of port contents py27-pylint | grep pylint-2.7
2. Output of os.environ['PATH'] run in a console within Spyder?

Oh no! I discovered, after answering your second question, that pylint was not in my path (although I thought it was), and I realized how to fix the problem. Thanks for the help, and please close this ticket. I'll explain more below for anyone else who encounters this issue.

1. Output of port contents py27-pylint | grep pylint-2.7:

   /opt/local/bin/epylint-2.7
   /opt/local/bin/pylint-2.7
   

2. Output of os.environ['PATH'] run in a console within Spyder:

   '/usr/bin:/bin:/usr/sbin:/sbin'
   

The principal cause of my problem was that I was not starting Spyder from the command line. Instead, I had made the following AppleScript application (with the official Spyder icon) to start Spyder from the Mac GUI (Finder, Launchpad, Spotlight, etc.):

try
  do shell script "/opt/local/bin/spyder > /dev/null 2>&1 &"
end try

What I just learned (and I did not know before) is that since I was not starting Spyder from the bash command line, the environment variables specified in my ~/.bash_profile were not being passed to Spyder. The solution was to emend the AppleScript application to "export PATH":

try
  do shell script "export PATH=/opt/local/bin:/opt/local/sbin:$PATH ; /opt/local/bin/spyder > /dev/null 2>&1 &"
end try

[eborisch (Eric A. Borisch)]

I was hopeful that something along those lines was the issue. Glad to see it resolved.

[eborisch (Eric A. Borisch)]

Setting to worksforme (rather than fixed) because we didn't need to change anything in the Portfile.