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| References | <c3363$547e74fe$5419aafe$24179@news.ziggo.nl> <cd7b7ffa-a217-4b62-bad2-9095b33a2bb6@googlegroups.com> <mailman.344.1441931751.8327.python-list@python.org> <55f293da$0$1640$c3e8da3$5496439d@news.astraweb.com> <CALwzidnG6kQFd5nqpN87b9AdsAan81=_FR=sfC+o3N93K28DNA@mail.gmail.com> |
|---|---|
| Date | 2015-09-12 01:15 +1000 |
| Subject | Re: Python handles globals badly. |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.371.1441984523.8327.python-list@python.org> (permalink) |
On Sat, Sep 12, 2015 at 1:03 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
>> There's also a bunch of specialised and complicated rules for what happens
>> if you make a star import ("from module import *") inside a function, or
>> call eval or exec without specifying a namespace. Both of these things are
>> now illegal in Python 3.
>
> Huh?
>
>>>> exec("x = 42")
>>>> x
> 42
>>>> exec("x = 43", None, None)
>>>> x
> 43
>
> That's in Python 3.4.0. Maybe I don't understand what you mean by
> "without specifying a namespace".
*inside a function*
>>> def f():
... exec("x = 42")
... print(x)
...
>>> x = 231
>>> f()
231
ChrisA
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Re: Python handles globals badly. tdev@freenet.de - 2015-09-10 15:25 -0700
Re: Python handles globals badly. Emile van Sebille <emile@fenx.com> - 2015-09-10 15:40 -0700
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-10 18:35 -0600
Re: Python handles globals badly. Marko Rauhamaa <marko@pacujo.net> - 2015-09-11 07:34 +0300
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-11 14:59 +1000
Re: Python handles globals badly. Marko Rauhamaa <marko@pacujo.net> - 2015-09-11 08:15 +0300
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-11 15:25 +1000
Re: Python handles globals badly. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-09-12 03:43 +0100
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-10 23:07 -0600
Re: Python handles globals badly. Marko Rauhamaa <marko@pacujo.net> - 2015-09-11 08:27 +0300
Re: Python handles globals badly. Rustom Mody <rustompmody@gmail.com> - 2015-09-11 00:39 -0700
Re: Python handles globals badly. Steven D'Aprano <steve@pearwood.info> - 2015-09-11 18:42 +1000
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-11 19:16 +1000
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-11 09:03 -0600
Re: Python handles globals badly. Steven D'Aprano <steve@pearwood.info> - 2015-09-12 17:00 +1000
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-12 01:15 +1000
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-11 09:27 -0600
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-12 01:44 +1000
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-11 09:49 -0600
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-12 01:55 +1000
Re: Python handles globals badly. random832@fastmail.us - 2015-09-11 11:57 -0400
Re: Python handles globals badly. Rustom Mody <rustompmody@gmail.com> - 2015-09-11 09:08 -0700
Re: Python handles globals badly. Chris Angelico <rosuav@gmail.com> - 2015-09-12 02:04 +1000
Re: Python handles globals badly. Ian Kelly <ian.g.kelly@gmail.com> - 2015-09-11 10:27 -0600
Re: Python handles globals badly. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-09-12 03:51 +0100
Re: Python handles globals badly. MRAB <python@mrabarnett.plus.com> - 2015-09-11 02:17 +0100
Re: Python handles globals badly. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-09-12 03:27 +0100
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