EXCEPTION (CommandException): Command failed with error #1! COMMAND 'pep8' --version STDOUT (empty) STDERR Traceback (most recent call last): File "/usr/local/bin/pep8", line 7, in <module> from pep8 import _main ImportError: No module named pep8 #0 /Users/andrewdeandrade/code/libphutil/src/future/exec/execx.php(17): ExecFuture->resolvex() #1 /Users/andrewdeandrade/code/arcanist/src/lint/linter/ArcanistPEP8Linter.php(35): execx('%C --version', Object(PhutilCommandString)) #2 /Users/andrewdeandrade/code/arcanist/src/lint/linter/__tests__/ArcanistExternalLinterTestCase.php(7): ArcanistPEP8Linter->getVersion() #3 [internal function]: ArcanistExternalLinterTestCase->testVersion() #4 /Users/andrewdeandrade/code/arcanist/src/unit/engine/phutil/PhutilTestCase.php(492): call_user_func_array(Array, Array) #5 /Users/andrewdeandrade/code/arcanist/src/unit/engine/PhutilUnitTestEngine.php(69): PhutilTestCase->run() #6 /Users/andrewdeandrade/code/arcanist/src/unit/engine/ArcanistConfigurationDrivenUnitTestEngine.php(147): PhutilUnitTestEngine->run() #7 /Users/andrewdeandrade/code/arcanist/src/workflow/ArcanistUnitWorkflow.php(167): ArcanistConfigurationDrivenUnitTestEngine->run() #8 /Users/andrewdeandrade/code/arcanist/src/workflow/ArcanistDiffWorkflow.php(1340): ArcanistUnitWorkflow->run() #9 /Users/andrewdeandrade/code/arcanist/src/workflow/ArcanistDiffWorkflow.php(1228): ArcanistDiffWorkflow->runUnit() #10 /Users/andrewdeandrade/code/arcanist/src/workflow/ArcanistDiffWorkflow.php(483): ArcanistDiffWorkflow->runLintUnit() #11 /Users/andrewdeandrade/code/arcanist/scripts/arcanist.php(392): ArcanistDiffWorkflow->run() #12 {main}