[#32921] Fix: Python error triggered when installing an addon via 'install addon' button

release/scripts/startup/bl_operators/wm.py

@@ -1755,6 +1755,7 @@ class WM_OT_addon_install(Operator):
 
         #check to see if the file is in compressed format (.zip)
         if zipfile.is_zipfile(pyfile):
+            is_archive = True
             try:
                 file_to_extract = zipfile.ZipFile(pyfile, 'r')
             except:
@@ -1784,6 +1785,7 @@ class WM_OT_addon_install(Operator):
                 return {'CANCELLED'}
 
         else:
+            is_archive = False
             path_dest = os.path.join(path_addons, os.path.basename(pyfile))
 
             if self.overwrite:
@@ -1823,9 +1825,19 @@ class WM_OT_addon_install(Operator):
         bpy.utils.refresh_script_paths()
 
         # print message
-        msg = "File %r installed into %r\n" % (pyfile, path_dest)
-        self.report({'INFO'}, msg)
+        msg = "Modules Installed from %r:" % (pyfile)
         print(msg)
+        self.report({'INFO'}, msg)
+        for mod in addon_utils.modules(addon_utils.addons_fake_modules):
+            if mod.__name__ in addons_new:
+                info = addon_utils.module_bl_info(mod)
+                if is_archive:
+                    module_path = os.path.dirname(os.path.abspath(mod.__file__))
+                else:
+                    module_path = os.path.abspath(mod.__file__)
+                msg = "\"%s\" installed in %r" % (info["name"],module_path)
+                self.report({'INFO'}, msg)
+                print(msg)
 
         return {'FINISHED'}