the implementation uses ZipImportError, not ZipImporterError...
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index b2b2e3b..937b0f7 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -1132,7 +1132,7 @@
\n\
This module exports three objects:\n\
- zipimporter: a class; its constructor takes a path to a Zip archive.\n\
-- ZipImporterError: exception raised by zipimporter objects. It's a\n\
+- ZipImportError: exception raised by zipimporter objects. It's a\n\
subclass of ImportError, so it can be caught as ImportError, too.\n\
- _zip_directory_cache: a dict, mapping archive paths to zip directory\n\
info dicts, as used in zipimporter._files.\n\