Raise PycodeError directly on parsing.

sphinx/ext/autodoc.py

@@ -380,6 +380,8 @@ class RstGenerator(object):
         # try to also get a source code analyzer for attribute docs
         try:
             analyzer = ModuleAnalyzer.for_module(mod)
+            # parse right now, to get PycodeErrors on parsing
+            analyzer.parse()
         except PycodeError, err:
             # no source file -- e.g. for builtin and C modules
             analyzer = None

sphinx/pycode/__init__.py

@@ -210,7 +210,10 @@ class ModuleAnalyzer(object):
         if self.parsetree is not None:
             return
         self.tokenize()
-        self.parsetree = pydriver.parse_tokens(self.tokens)
+        try:
+            self.parsetree = pydriver.parse_tokens(self.tokens)
+        except parse.ParseError, err:
+            raise PycodeError('parsing failed', err)
         # find the source code encoding
         encoding = sys.getdefaultencoding()
         comments = self.parsetree.get_prefix()