def commands(ctx):
     assert ctx.pyenv(["global",
                       "3.7.8"]) == not_installed_output("3.7.8")
 def commands(ctx):
     assert ctx.pyenv(["shell", "3.7.8"]) == (not_installed_output("3.7.8"), "")
 def commands(ctx):
     assert ctx.pyenv(["local", "3.7.7",
                       "3.8.9"]) == (not_installed_output("3.8.9"), "")