BadPrototypeError

[ryanphuang]

I encountered a BadPrototypeError when using the plugin.

Jan  1 16:44:06 MacBook-Pro-8 Mail[26372]: QuoteFix has encountered a fatal error, and will now terminate.
Jan  1 16:44:06 MacBook-Pro-8 Mail[26372]: An uncaught exception was raised during execution of the main script:
	
	BadPrototypeError: Objective-C expects 1 arguments, Python argument has 2 arguments for <unbound selector set_state_and_title of Menu at 0x11459f1d0>

It looks it's because I installed a new version of pyobjc, which enforces more strictly on the selector mapping: https://pythonhosted.org/pyobjc/core/changelog.html

If these methods are only used from Python and are never used from Objective-C the error can be avoided by decorating these methods with objc.python_method:

class MyObject (NSObject):
@objc.python_method
def mymethod(self, a, b): ...

I added this into the quotefix/menu.py methods, but then it failed with

ImportError: cannot import name MessageHeaders

[robertklep]

Thanks for the heads-up.

Did you get that error just by installing a new version of PyObjC, or did you also build the plugin using that version? I build the QF plugin using specific version of Python (and PyObjC) and I honestly thought that the plugin was self-contained (i.e. it shouldn't be influenced by globally installed Python/PyObjC).

[ryanphuang]

I initially got the error by just just directly using the released .mailbundle. If I uninstall the new version (3.2.1) pyobjc, the errors will be gone. So I thought it has dependency on system-wide pyobjc. But then I realize, there was another .mailbundle plugin in my Mails/Bundles that is compiled with the new version pyobjc. If I remove that .mailbundle, even if I have a 3.2.1 pyobjc installed, the release version QF will without problem.

So in short, you are right, the plugin was self-contained, as long as no other plugins that are compiled with the new pyobjc, QF works for me, but if there's another new plugin or I want to build QF by myself, the errors still exist.

[robertklep]

Oh, yeah, that could very well cause issues, because AFAIK only one version of the framework can be active inside the Mail app at any one time (and it's a bit of a gamble which one gets loaded first).

My guess is that after decorating the set_state_and_title method, you just hit the next backward incompatible error :(

At some point I'll try and see if I can install the new PyObjC in such a way that it won't break my current setup (which is a bit fragile, I have to admit).