Compare source code

rustom rustompmody at
Fri Nov 5 08:20:09 CET 2010

On Nov 5, 8:25 am, Terry Reedy <tjre... at> wrote:
> On 11/4/2010 10:47 PM, Rustom Mody wrote:
> > As far as I am concerned python would not be python if its
> > indentation=structure went.  However the original question -- mixing
> > tabs and spaces is bad -- has got lost in the flames.  Do the most
> > die-hard python fanboys deny this?
> Of course not. Not mixing tabs and spaces has been the recommendation
> for perhaps a decade.
> > And if not is it asking too much (say in python3) that mixing tabs and spaces
>  > be flagged as an error or at least warning?
> Making all mixture an error was considered but rejected as causing too
> much gratuitous breakage. One reason: you cut code from some source with
> the 'other' style and paste into code with 'your' style. Should you be
> *forced* (rather than merely advised) to convert before running the
> result even once. Guido decided that there was enough breakage from
> important things like unicode text and all new-style classes.

That means that obvious and easily repairable-with-trivial-tools
breakage is being traded for more insidious breakage
> On the other hand, someone said that ambiguous mixtures now are prohibited.
Not sure I understand the issues here.

More information about the Python-list mailing list