[Python-Dev] 2to3 and print function

David Wolever wolever at cs.toronto.edu
Thu Mar 20 06:27:11 CET 2008

On 19-Mar-08, at 6:44 PM, Collin Winter wrote:
> You can pass -p to refactor.py to fix this on a per-run basis. See
> r58002 (and the revisions it mentions) for a failed attempt to do this
> automatically.

So, correct me if I'm wrong, but the relevant code is this:
-            try:
-                tree = self.driver.parse_string(data)
-            except parse.ParseError, e:
-                if e.type == token.EQUAL:
-                    tree = self.printless_driver.parse_string(data)
-                else:
-                    raise

Why not, instead of trying both parsers, scan for a __future__  
import, then do the Right Thing based on that?

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