def test_editable_install(script):
 result = script.pip('install', '-e', 'INITools==0.2', expect_error=True)
 assert ('INITools==0.2 should either be a path to a local project or a VCS url' in result.stderr)
 assert (not result.files_created)
 assert (not result.files_updated)

def test_editable_install ( script ) : result = script . pip ( 'install' , '-e' , 'INITools==0.2' , expect_error = True ) assert ( 'INITools==0.2 should either be a path to a local project or a VCS url' in result . stderr ) assert ( not result . files_created ) assert ( not result . files_updated )
test editable installation .