forked from bartvdbraak/blender
Fix error enabling an already enabled addon
Would run register() twice causing warning with `register_module()` which expects new classes to be defined. Now run unregister() before re-registering.
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@ -278,6 +278,20 @@ def enable(module_name, default_set=False, persistent=False, handle_error=None):
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mod = sys.modules.get(module_name)
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# chances of the file _not_ existing are low, but it could be removed
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if mod and os.path.exists(mod.__file__):
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if getattr(mod, "__addon_enabled__", False):
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# This is an unlikely situation,
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# re-register if the module is enabled.
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# Note: the UI doesn't allow this to happen,
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# in most cases the caller should 'check()' first.
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try:
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mod.unregister()
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except:
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print("Exception in module unregister(): %r" %
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getattr(mod, "__file__", module_name))
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handle_error()
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return None
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mod.__addon_enabled__ = False
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mtime_orig = getattr(mod, "__time__", 0)
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mtime_new = os.path.getmtime(mod.__file__)
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