Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #78587

Re: Clearing globals in CPython

Show key headers only | View raw

On 02/10/2014 09:11, Steven D'Aprano wrote:
> Peter Otten wrote:
>
>> Steven D'Aprano wrote:
>
>>> Obviously the easiest way to recover is to exit the current session and
>>> restart it, but as a challenge, can we recover from this state?
>>
>> $ python3
>> Python 3.4.0 (default, Apr 11 2014, 13:05:11)
>> [GCC 4.8.2] on linux
>> Type "help", "copyright", "credits" or "license" for more information.
>>>>> globals().clear()
>>>>> import that
>> Traceback (most recent call last):
>>    File "<stdin>", line 1, in <module>
>> ImportError: __import__ not found
>>>>> object = 1 .__class__.__bases__[0]
>>>>> Quitter = [c for c in object.__subclasses__() if c.__name__ ==
>> "Quitter"][0]
>>>>> __builtins__ = Quitter.__call__.__globals__["__builtins__"]
>>>>> import this
>> The Zen of Python, by Tim Peters
>
> Nicely done!
>

Other than the Zen of Python what has Tim Peters ever done for us? 
Apart from...

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Clearing globals in CPython Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-10-02 02:00 +1000
  Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-02 02:14 +1000
  Re: Clearing globals in CPython Chris Kaynor <ckaynor@zindagigames.com> - 2014-10-01 10:08 -0700
  Re: Clearing globals in CPython Peter Otten <__peter__@web.de> - 2014-10-01 19:24 +0200
    Re: Clearing globals in CPython Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-10-02 18:11 +1000
      Re: Clearing globals in CPython Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-10-02 09:30 +0100
    Re: Clearing globals in CPython jakubo <jakubo@example.org> - 2014-10-06 09:05 +0000
      Re: Clearing globals in CPython Steven D'Aprano <steve@pearwood.info> - 2014-10-06 09:08 +0000
        Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-06 20:30 +1100
  Re: Clearing globals in CPython Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-10-01 19:17 +0100
  Re: Clearing globals in CPython Terry Reedy <tjreedy@udel.edu> - 2014-10-01 14:44 -0400
  Re: Clearing globals in CPython Marco Buttu <marco.buttu@gmail.com> - 2014-10-01 18:39 +0200
  Re: Clearing globals in CPython Grant Edwards <invalid@invalid.invalid> - 2014-10-02 14:07 +0000
    Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-03 00:12 +1000
    Re: Clearing globals in CPython Stefan Behnel <stefan_ml@behnel.de> - 2014-10-03 07:26 +0200

csiph-web