Thank you Venkat.
Regards, Ranjith On Mon, Jul 4, 2016 at 9:30 PM, <chennaipy-requ...@python.org> wrote: > Send Chennaipy mailing list submissions to > chennaipy@python.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.python.org/mailman/listinfo/chennaipy > or, via email, send a message with subject or body 'help' to > chennaipy-requ...@python.org > > You can reach the person managing the list at > chennaipy-ow...@python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Chennaipy digest..." > > > Today's Topics: > > 1. Help with Python (Abdur Rub) > 2. Re: Python interpreter (venkata krishnan) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 3 Jul 2016 22:54:12 +0530 > From: Abdur Rub <abdur.engin...@gmail.com> > To: chennaipy@python.org > Subject: [Chennaipy] Help with Python > Message-ID: > < > camdp94w2sibw1awspjywfnrmjvyqasxfjg3aj4j9cnvuqpx...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Dear all, > > I posted the following on Stack overflow. > http://stackoverflow.com/q/38171869/6426077 > wonder if anyone here could help > > thanks > Abdur > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.python.org/pipermail/chennaipy/attachments/20160703/4dbccb5f/attachment-0001.html > > > > ------------------------------ > > Message: 2 > Date: Sun, 3 Jul 2016 17:52:43 +0000 (UTC) > From: venkata krishnan <ve_kr...@yahoo.com> > To: "chennaipy@python.org" <chennaipy@python.org> > Subject: Re: [Chennaipy] Python interpreter > Message-ID: > <385017020.1210430.1467568363516.javamail.ya...@mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > Dear Ranjit, > > It is not the interpreter alone in action and it flutters. From my > learning by going through the articles below. > It works in conjunction with Symbol table to determine the scope of each > name binding. So, before it reaches the print(x) in case 2. It has the > symbol table prepared for the function/block. When the LEGB scoping rule > applied. It finds that, you have already an assignment operator for x in > that scope. Thus, it treats it as an UnboundLocalError. Where as in case 1. > The symbol table would not have any local scope/assignment for x. > > > Please go through below links(articles) from below. Has a very good > explanation of "UnboundLocalError". > 1. > http://eli.thegreenplace.net/2011/05/15/understanding-unboundlocalerror-in-python/ > 2. Symbol table construction in Python's compiler > Part1: > http://eli.thegreenplace.net/2010/09/18/python-internals-symbol-tables-part-1/ > > Part2: > http://eli.thegreenplace.net/2010/09/20/python-internals-symbol-tables-part-2/ > > > Thanks > Venkat > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Chennaipy mailing list > Chennaipy@python.org > https://mail.python.org/mailman/listinfo/chennaipy > > > ------------------------------ > > End of Chennaipy Digest, Vol 35, Issue 4 > **************************************** >
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