Plugin load fix (#3768)

* Catch potential secondary PackageNotFoundError

* Plugin template tweaks

InvenTree/plugin/helpers.py

@@ -65,6 +65,7 @@ def handle_error(error, do_raise: bool = True, do_log: bool = True, log_name: st
     """Handles an error and casts it as an IntegrationPluginError."""
     package_path = traceback.extract_tb(error.__traceback__)[-1].filename
     install_path = sysconfig.get_paths()["purelib"]
+
     try:
         package_name = pathlib.Path(package_path).relative_to(install_path).parts[0]
     except ValueError:
@@ -92,9 +93,10 @@ def handle_error(error, do_raise: bool = True, do_log: bool = True, log_name: st
         log_error({package_name: str(error)}, **log_kwargs)
 
     if do_raise:
-        # do a straight raise if we are playing with enviroment variables at execution time, ignore the broken sample
+        # do a straight raise if we are playing with environment variables at execution time, ignore the broken sample
         if settings.TESTING_ENV and package_name != 'integration.broken_sample' and isinstance(error, IntegrityError):
             raise error  # pragma: no cover
+
         raise IntegrationPluginError(package_name, str(error))
 
 

InvenTree/plugin/plugin.py

@@ -340,9 +340,14 @@ class InvenTreePlugin(VersionMixin, MixinBase, MetaBase):
         # Try simple metadata lookup
         try:
             meta = metadata(cls.__name__)
-        # Simpel lookup did not work - get data from module
+        # Simple lookup did not work - get data from module
         except PackageNotFoundError:
+
+            try:
                 meta = metadata(cls.__module__.split('.')[0])
+            except PackageNotFoundError:
+                # Not much information we can extract at this point
+                return {}
 
         return {
             'author': meta['Author-email'],

InvenTree/templates/InvenTree/settings/plugin_settings.html

@@ -7,7 +7,7 @@
 
 
 {% block heading %}
-{% blocktrans with name=plugin.human_name %}Plugin details for {{name}}{% endblocktrans %}
+{% trans "Plugin" %}: <em>{{ plugin.human_name }}</em>
 {% endblock %}
 
 {% block content %}