Re: [Python-Dev] Critique of PEP 501 (General purpose string interpolation)

2015-09-05 Thread Guido van Rossum
On Sat, Sep 5, 2015 at 5:11 AM, Nick Coghlan wrote: > On 5 September 2015 at 13:04, Guido van Rossum wrote: > > I think it's too much effort for too little gain. > > > > The motivation feels very weak; surely writing > > > > os.system("echo " + message_from_user) > > > > is just as easy (as is

Re: [Python-Dev] Critique of PEP 501 (General purpose string interpolation)

2015-09-05 Thread Nick Coghlan
On 5 September 2015 at 13:04, Guido van Rossum wrote: > I think it's too much effort for too little gain. > > The motivation feels very weak; surely writing > > os.system("echo " + message_from_user) > > is just as easy (as is the %s spelling), so the security issue can hardly be > blamed on PEP

[Python-Dev] Critique of PEP 501 (General purpose string interpolation)

2015-09-04 Thread Guido van Rossum
I think it's too much effort for too little gain. The motivation feels very weak; surely writing os.system("echo " + message_from_user) is just as easy (as is the %s spelling), so the security issue can hardly be blamed on PEP 498. I also don't think that the current way to address such secur