Python critique

[Octavian Rasnita]

From: "Steven D'Aprano" <steve+comp.lang.python at pearwood.info>
...
>> Can you please tell me how to write the following program in Python?
>> 
>> my $n = 1;
>> 
>> {
>>   my $n = 2;
>>   print "$n\n";
>> }
>> 
>> print "$n\n";
>> 
>> If this program if ran in Perl, it prints: 
>> 2
>> 1
> 
> Lots of ways. Here's one:
> 
> 
> n = 1
> 
> class Scope:
>    n = 2
>    print n
> 
> print n
> 
> 
> 
> Here's another:
> 
> n = 1
> print (lambda n=2: n)()
> print n
> 
> 
> 
> Here's a third:
> 
> n = 1
> 
> def scope():
>    n = 2
>    print n
> 
> scope()
> print n
> 
> 
> Here's a fourth:
> 
> import sys
> n = 1
> (sys.stdout.write("%d\n" % n) for n in (2,)).next()
> print n
> 
> 
> In Python 3, this can be written more simply:
> 
> n = 1
> [print(n) for n in (2,)]
> print n
> 
> 
> 
>> I have tried to write it, but I don't know how I can create that block
>> because it tells that there is an unexpected indent.
> 
> Functions, closures, classes and modules are scopes in Python. If you 
> want a new scope, create one of those.
> 
> 
> 
> -- 
> Steven


Hi Steven,

Thank you for your message. It is very helpful for me.
I don't fully understand the syntax of all these variants yet, but I can see that there are more scopes in Python than I thought, and this is very good.

Octavian