Improve Python tree-shaking

third_party/python/Lib/xml/parsers/expat.py

@@ -1,7 +1,27 @@
 """Interface to the Expat non-validating XML parser."""
+
+__all__ = [
+    'EXPAT_VERSION',
+    'ErrorString',
+    'ExpatError',
+    'ParserCreate',
+    'XMLParserType',
+    'XML_PARAM_ENTITY_PARSING_ALWAYS',
+    'XML_PARAM_ENTITY_PARSING_NEVER',
+    'XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE',
+    'error',
+    'errors',
+    'expat_CAPI',
+    'features',
+    'model',
+    'native_encoding',
+    'sys',
+    'version_info',
+]
+
 import sys
 
-from pyexpat import *
+from pyexpat import EXPAT_VERSION, ErrorString, ExpatError, ParserCreate, XMLParserType, XML_PARAM_ENTITY_PARSING_ALWAYS, XML_PARAM_ENTITY_PARSING_NEVER, XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE, error, errors, expat_CAPI, features, model, native_encoding, version_info
 
 # provide pyexpat submodules as xml.parsers.expat submodules
 sys.modules['xml.parsers.expat.model'] = model

third_party/python/Lib/xml/sax/__init__.py

@@ -95,7 +95,7 @@ def make_parser(parser_list = []):
 
 if sys.platform[ : 4] == "java":
     def _create_parser(parser_name):
-        from org.python.core import imp
+        # from org.python.core import imp
         drv_module = imp.importName(parser_name, 0, globals())
         return drv_module.create_parser()
 

third_party/python/Lib/xml/sax/_exceptions.py

@@ -1,8 +1,4 @@
 """Different kinds of SAX Exceptions"""
-import sys
-if sys.platform[:4] == "java":
-    from java.lang import Exception
-del sys
 
 # ===== SAXEXCEPTION =====