[Python-3000] exclusion feature for 2to3? (original) (raw)

Alexandre Vassalotti alexandre at peadrop.com
Wed Jul 18 23:43:54 CEST 2007

On 7/15/07, Georg Brandl <g.brandl at gmx.net> wrote:

Most obvious would be a special comment, something like

for x in curiousobject.iteritems(): # 2to3:keep foo(x) Does that make sense?

It would be a good idea to define a convention for these special comments. For example, we could define something similar to C's pragma:

#pragma

So, your example would become:

for x in curiousobject.iteritems(): #pragma 2to3 keep foo(x)

I expect other tools, like pdb.py and trace.py could follow this convention as well. For example:

def buggy_func(): #pragma pdb break pass

if debug: #pragma trace ignore pass

The motivation for making a such convention, is to make it easy for programmers to identify comments that are in fact control lines.

-- Alexandre