Fixes #307: Remove remaining uses of is_command;

12 jobs for master
Status Job ID Name Coverage
  Build
failed #24122
build:2.7

failed #24123
build:3

 
  Test
skipped #24125
allowed to fail
lint:2.7
skipped #24129
allowed to fail
lint:3
skipped #24124
pyflakes:2.7
skipped #24128
pyflakes:3
skipped #24126
unittests:2.7
skipped #24130
unittests:3
skipped #24127
allowed to fail
unittests-modules:2.7
skipped #24131
allowed to fail
unittests-modules:3
 
  Deploy
skipped #24132
doc:2.7
skipped #24133
doc:3
 
Name Stage Failure
failed
build:2.7 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
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failed
build:3 Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log