Description of problem:
When I run an ANTLR3 parser with the Python runtime, I receive the following warning:

            WARNING: ANTLR version mismatch: 
            The recognizer has been generated by V3.2 Fedora release 14 (Laughlin) Wed Oct 13 19:37:52 UTC 2010, but this runtime 
            is V3.1.2, this may not work correctly. Please use the V3.2 Fedora release 14 (Laughlin) Wed Oct 13 19:37:52 UTC 2010 runtime or higher.

The versions of the ANTLR runtimes should always be updated to match the version ANTLR.

Version-Release number of selected component (if applicable):
antlr3: 3.2
antlr3-python: 3.1.2

How reproducible:
Always

Steps to Reproduce:
1. $ antlr3 exer1.g
2. $ python exer1Parser.py
3. type ^D

With the following exer1.g:

grammar exer1;

options {
    language=Python;
    backtrack=true;
        }

l:    e NEWLINE
    ;

e:    t '+' e
    | t
    ;

t:    f '+' t
    | f
    ;

f:    '(' e ')'
    | DIGIT
    ;

DIGIT: ('0'..'9')
    ;

NEWLINE: '\n'
    ;

  
Actual results:
The warning above.

Expected results:
No warning.

Additional info:
I also receive this error, which I assume is related to the version mismatch:

Traceback (most recent call last):
  File "exer1Parser.py", line 403, in <module>
    main(sys.argv)
  File "exer1Parser.py", line 399, in main
    main.execute(argv)
  File "/usr/lib/python2.7/site-packages/antlr3/main.py", line 151, in execute
    self.parseStream(options, inStream)
  File "/usr/lib/python2.7/site-packages/antlr3/main.py", line 218, in parseStream
    result = getattr(parser, options.parserRule)()
TypeError: getattr(): attribute name must be string