MacOS: Error while checking Mypy path

Step 1: Are you in the right place?

• I have verified there are no duplicate active or recent bugs, questions, or requests
• I have verified that I am using the latest version of the plugin.

Step 2: Describe your environment

• Plugin version: 0.10.2
• PyCharm/IDEA version: 2018.3.4 Build #PY-183.5429.31
• Mypy version: 0.620

Step 3: Describe the problem:

Steps to reproduce:

1. Install mypy using brew install mypy
2. Restart pycharm

Observed Results:

• Pycharm indicates a fatal error “Error while checking Mypy path”

Expected Results:

• Pycharm should load without complaining

Relevant Code:

I think the plugin is throwing an error when executing the /usr/local/bin/mypy file as installed by brew but I can’t see why. This file contains:

#!/bin/bash
PYTHONPATH="/usr/local/Cellar/mypy/0.620/libexec/lib/python3.7/site-packages:/usr/local/Cellar/mypy/0.620/libexec/vendor/lib/python3.7/site-packages" exec "/usr/local/Cellar/mypy/0.620/libexec/bin/mypy" "$@"

java.lang.Throwable: Error while checking Mypy path:   File "/usr/local/bin/mypy", line 2
    PYTHONPATH="/usr/local/Cellar/mypy/0.620/libexec/lib/python3.7/site-packages:/usr/local/Cellar/mypy/0.620/libexec/vendor/lib/python3.7/site-packages" exec "/usr/local/Cellar/mypy/0.620/libexec/bin/mypy" "$@"
                                                                                                                                                             ^
SyntaxError: invalid syntax
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:134)
	at com.leinardi.pycharm.mypy.mpapi.MypyRunner.isMypyPathValid(MypyRunner.java:102)
	at com.leinardi.pycharm.mypy.mpapi.MypyRunner.checkMypyAvailable(MypyRunner.java:176)
	at com.leinardi.pycharm.mypy.mpapi.MypyRunner.checkMypyAvailable(MypyRunner.java:152)
	at com.leinardi.pycharm.mypy.MypyInspection.inspectFile(MypyInspection.java:76)
	at com.leinardi.pycharm.mypy.MypyInspection.lambda$checkFile$0(MypyInspection.java:65)
	at com.intellij.openapi.application.impl.ApplicationImpl$2.call(ApplicationImpl.java:337)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

[Daenyth]

I see a similar problem on OSX using the path of mypy inside my project’s venv, using Intellij with the python plugin

[tj800x]

I had this issue with pyenv with both python 2.7 and python 3.7 installed. Once I was able to resolve down to a single version I was able to take the output of pyenv which mypy and paste it into the path to mypy executable (preferences/mypy) and everything worked fine.