jonashackt · March 5, 2026 07:07 · Jan 13, 2019 · Jan 9, 2019 · Jan 1, 2019 · Dec 31, 2018
diff --git a/molecule-cheatsheet.bash b/molecule-cheatsheet.bash
@@ -112,4 +112,7 @@ sh.CommandNotFound: py.test
 # and Python3 does not. So the only thing left, was to install molecule also on pip (homebrew Python2) again 
 # (pip install pytest wan't enough!):
 pip install molecule
+
+# 13.01.2019: Raspbian needs Ansible Python 3, AWS Ansible Python 2 :(
+
 
diff --git a/molecule-cheatsheet.bash b/molecule-cheatsheet.bash
@@ -33,7 +33,7 @@ pip3 install docker-py --upgrade
     PLAY RECAP *********************************************************************
     localhost                  : ok=1    changed=0    unreachable=0    failed=1  
 
- ### thats a problem of doubled problem
+ ### thats a problem with another doubled problem
  # 1. docker & docker-py are the same packages and Ansible doesn't know, which it should use
  # see https://medium.com/dronzebot/ansible-and-docker-py-path-issues-and-resolving-them-e3834d5bb79a
  # https://github.com/ansible/ansible/issues/20492
@@ -61,4 +61,55 @@ pip3 install docker-py --upgrade
 # now install molecule & docker (NOT docker-py!) using pip3 (3!)
 pip3 install molecule docker
 
+
+### error:
+$ molecule --debug verify
+--> Validating schema /Users/jonashecht/dev/molecule-ansible-docker-vagrant/docker/molecule/vagrant-ubuntu/molecule.yml.
+Validation completed successfully.
+--> Validating schema /Users/jonashecht/dev/molecule-ansible-docker-vagrant/docker/molecule/aws-ec2-ubuntu/molecule.yml.
+Validation completed successfully.
+--> Validating schema /Users/jonashecht/dev/molecule-ansible-docker-vagrant/docker/molecule/default/molecule.yml.
+Validation completed successfully.
+--> Test matrix
+
+└── default
+    └── verify
+
+--> Scenario: 'default'
+--> Action: 'verify'
+Traceback (most recent call last):
+  File "/usr/local/bin/molecule", line 11, in <module>
+    sys.exit(main())
+  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 722, in __call__
+    return self.main(*args, **kwargs)
+  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 697, in main
+    rv = self.invoke(ctx)
+  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
+    return _process_result(sub_ctx.command.invoke(sub_ctx))
+  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 895, in invoke
+    return ctx.invoke(self.callback, **ctx.params)
+  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 535, in invoke
+    return callback(*args, **kwargs)
+  File "/usr/local/lib/python3.7/site-packages/click/decorators.py", line 17, in new_func
+    return f(get_current_context(), *args, **kwargs)
+  File "/usr/local/lib/python3.7/site-packages/molecule/command/verify.py", line 97, in verify
+    base.execute_subcommand(scenario.config, action)
+  File "/usr/local/lib/python3.7/site-packages/molecule/command/base.py", line 100, in execute_subcommand
+    return command(config).execute()
+  File "/usr/local/lib/python3.7/site-packages/molecule/command/verify.py", line 72, in execute
+    self._config.verifier.execute()
+  File "/usr/local/lib/python3.7/site-packages/molecule/verifier/testinfra.py", line 183, in execute
+    self.bake()
+  File "/usr/local/lib/python3.7/site-packages/molecule/verifier/testinfra.py", line 162, in bake
+    self._testinfra_command = sh.Command('py.test').bake(
+  File "/usr/local/lib/python3.7/site-packages/sh.py", line 1202, in __init__
+    raise CommandNotFound(path)
+sh.CommandNotFound: py.test
+
+
+### Python on Mac-Hell again!
+# According to https://bugzilla.redhat.com/show_bug.cgi?id=1653777 the problem seems to be, that only python2-pytest provides py.test - 
+# and Python3 does not. So the only thing left, was to install molecule also on pip (homebrew Python2) again 
+# (pip install pytest wan't enough!):
+pip install molecule
 
diff --git a/molecule-cheatsheet.bash b/molecule-cheatsheet.bash
@@ -13,6 +13,52 @@ packages/molecule/provisioner/ansible/plugins/filters/molecule_core.py) as it
 seems to be invalid: No module named 'molecule'
 
 # fix with upgrading Ansible to latest brew installed version with
-pip install ansible --upgrade
-pip install docker --upgrade
-pip install docker-py --upgrade
+pip3 install ansible --upgrade
+pip3 install docker --upgrade
+pip3 install docker-py --upgrade
+
+
+### error
+            },
+            "mode": "0644",
+            "owner": "jonashecht",
+            "path": "/var/folders/5p/l1cc1kqd69n_qxrftgln7xdm0000gn/T/molecule/docker/default/Dockerfile_ubuntu_bionic",
+            "size": 855,
+            "state": "file",
+            "uid": 501
+        },
+        "msg": "Failed to import docker or docker-py - No module named 'docker'. Try `pip install docker` or `pip install docker-py` (Python 2.6)"
+    }
+
+    PLAY RECAP *********************************************************************
+    localhost                  : ok=1    changed=0    unreachable=0    failed=1  
+
+ ### thats a problem of doubled problem
+ # 1. docker & docker-py are the same packages and Ansible doesn't know, which it should use
+ # see https://medium.com/dronzebot/ansible-and-docker-py-path-issues-and-resolving-them-e3834d5bb79a
+ # https://github.com/ansible/ansible/issues/20492
+ # solve it, by uninstall docker-py docker docker-compose and all docker-related packages with
+ pip uninstall docker docker-py docker-compose docker-pycreds
+
+ # then we need to do a fresh install of docker package only (which is the successor to docker-py!)
+ # BUT: we also need to use Ansible, that uses Python 3.x itself - because otherwise, it won't find the new Docker package correctly 
+ # and the error will remain. Therefore ALWAYS STICK TO pip3!!!
+ # brew installs Python 2 ('pip') and Python3 ('pip3'). In order to install Ansible using Python 3, uninstall all other Ansible packages
+ brew uninstall ansible
+ pip uninstall ansible
+ pip3 install ansible
+
+ # check the Python version is correct (3!) in Ansible
+ ansible --version
+ # should look like
+ ansible 2.7.5
+  config file = None
+  configured module search path = ['/Users/jonashecht/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
+  ansible python module location = /usr/local/lib/python3.7/site-packages/ansible
+  executable location = /usr/local/bin/ansible
+  python version = 3.7.2 (default, Jan  1 2019, 17:59:04) [Clang 10.0.0 (clang-1000.11.45.5)]
+
+# now install molecule & docker (NOT docker-py!) using pip3 (3!)
+pip3 install molecule docker
+
+
diff --git a/molecule-cheatsheet.bash b/molecule-cheatsheet.bash
@@ -13,4 +13,6 @@ packages/molecule/provisioner/ansible/plugins/filters/molecule_core.py) as it
 seems to be invalid: No module named 'molecule'
 
 # fix with upgrading Ansible to latest brew installed version with
-pip install ansible --upgrade
+pip install ansible --upgrade
+pip install docker --upgrade
+pip install docker-py --upgrade
diff --git a/molecule-cheatsheet.bash b/molecule-cheatsheet.bash
@@ -0,0 +1,16 @@
+### error :
+Validation completed successfully.
+--> Test matrix
+
+└── default
+    ├── create
+    └── prepare
+
+--> Scenario: 'default'
+--> Action: 'create'
+ [WARNING]: Skipping plugin (/usr/local/lib/python2.7/site-
+packages/molecule/provisioner/ansible/plugins/filters/molecule_core.py) as it
+seems to be invalid: No module named 'molecule'
+
+# fix with upgrading Ansible to latest brew installed version with
+pip install ansible --upgrade
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