Babel does not translate in python but in JavaScript it is fine

Nils · August 19, 2022, 6:30pm

Hi,

I am still using a babel translation successfully in the JavaScript UI part of my plugin and like to add translations also to my python backend. I added everything like described here (as also still done for Jinja and JavaScript) but it does not translate the text. The translation itself is available in messages.po and also GETTEXT is used but it is still not translated. Any ideas what I forgot? Checked other plugins but did not find anything there...

github.com

NilsRo/OctoPrint-SlicerEstimator/blob/396f00e6b6e7c1f5e48d8a75dcd72f7c1c43f978/octoprint_SlicerEstimator/init.py#L212


      
                  self._logger.debug("Event received: {}".format(event))
          
          
    if event == Events.PRINT_DONE:
                  origin = payload["origin"]
                  path = payload["path"]
                  self._file_manager._storage_managers["local"].set_additional_metadata(path, "slicer_filament_change", self._slicer_filament_change, overwrite=True)
          
          
    if event == Events.FILE_ADDED:            
                  if payload["storage"] == "local" and payload["type"][1] == "gcode":
                      if self._filedata[payload["path"]].slicer != None:
                          self._sendDataToClient(dict(notifyType="warning", notifyTitle=gettext("Slicer Estimator Warning"), notifyMessage=gettext("Slicer not detected. Please open a ticket if the slicer should be known..."), notifyHide=False))
                      self._filedata[payload["path"]].store_metadata()
                      
          
          
# estimator factory hook
          def estimator_factory(self):
              def factory(*args, **kwargs):
                  self._estimator = SlicerEstimator(*args, **kwargs)
                  self._estimator.average_prio = self._average_prio            
                  return self._estimator
              return factory

github.com

NilsRo/OctoPrint-SlicerEstimator/blob/396f00e6b6e7c1f5e48d8a75dcd72f7c1c43f978/octoprint_SlicerEstimator/translations/de/LC_MESSAGES/messages.po#L33


      
          msgid "Slicer Estimator Info"
          msgstr "Slicer Estimator Information"
          
          
#: octoprint_SlicerEstimator/__init__.py:191
          msgid ""
          "No print time estimation from slicer available. Please upload GCODE file "
          "again."
          msgstr "Keine erwartete Druckzeit vom Slicer verfügbar. Bitte GCODE erneut hochladen."
          
          
#: octoprint_SlicerEstimator/__init__.py:214
          msgid "Slicer Estimator Warning"
          msgstr "Slicer Estimator Warnung"
          
          
#: octoprint_SlicerEstimator/__init__.py:214
          msgid "Slicer not detected. Please open a ticket if the slicer should be known..."
          msgstr "Slicer nicht erkannt. Bitte ein Ticket eröffnen, wenn der Slicer funktionieren sollte."
          
          
#: octoprint_SlicerEstimator/static/js/SlicerEstimator.js:79
          msgid "Based on information added by the slicer."
          msgstr "basierend aus der Schätzung des Slicers"

Cheers,
Nils

jneilliii · August 19, 2022, 7:05pm

Did you rebuild the language and re-install in OP? I haven't done much with translations but know there are steps you have to take for it to be filled in.

Nils · August 19, 2022, 8:19pm

Not in OctoPrint...I done it in my plugin. Tried to change another text in JavaScript implementation which changes the translation correctly. Only python translation does not work fine...is it necessary to add it to OctoPrints central translation if I like to translate python messages in plugins?

Nils · August 20, 2022, 4:59pm

The message.mo of all plugins including mine is read and merged by OctoPrint so I can use my local plugins translation. But if gettext is executed the context in Babel code is empty and it runs into NullTranslations. So it seems that I missed something to configure? Languages packages does not show any plugin with a translation packages...but do not know if this is necessary for the message.mo translation included in the plugin.

Nils · August 20, 2022, 7:06pm

I think its a bug in OctoPrint itself. All translations in python does not work anymore. I created a bug for that: Babel translation seems not working anymore in python code · Issue #4626 · OctoPrint/OctoPrint · GitHub

Charlie_Powell · August 20, 2022, 11:21pm

I've replied on GitHub with what I think is the explanation for the translations not working, because there is no context.