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Re: Get keys from a dicionary

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Date Fri, 11 Nov 2011 11:47:21 -0500
From Dave Angel <d@davea.name>
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To macm <moura.mario@gmail.com>
Subject Re: Get keys from a dicionary
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On 11/11/2011 11:33 AM, macm wrote:
> Hi
>
> Sorry ! My mistake.
>
>>>> myDict = {}
>>>> myDict['foo'] = {}
>>>> myDict['foo']['bar'] = 'works'
> -----
>
>>>> def myFunction( MyObj ):
> ...	# MyObj is a nested dicionary (normaly 2 steps like myDict['foo']
> ['bar'])

No, it's not.   It's a string "works".  There's no dictionary passed to 
myFunction(), so it cannot do what you ask, slow or fast.

There are games you can play with introspection, but they are neither 
portable nor reliable.

> ...	# I want inspect this MyObj
> ...	# what keys was pass
> ...	print MyObj.keys() ## WRONG
> ...	# So What I want is :
> ...	# return foo bar
>
> ----------------
>
>>>> result = myFunction( myDict['foo']['bar'] )
>>>> result
> Should print :
>
> ... foo bar
>
> Best Regards
>
> macm
Can you tell us the exact assignment, to see whether this is supposed to 
be a practical question, or a way to try to learn more about Python 
internals.



-- 

DaveA

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Thread

Get keys from a dicionary macm <moura.mario@gmail.com> - 2011-11-11 05:31 -0800
  Re: Get keys from a dicionary Jon Clements <joncle@googlemail.com> - 2011-11-11 08:09 -0800
    Re: Get keys from a dicionary macm <moura.mario@gmail.com> - 2011-11-11 08:33 -0800
      Re: Get keys from a dicionary macm <moura.mario@gmail.com> - 2011-11-11 08:38 -0800
      Re: Get keys from a dicionary Dave Angel <d@davea.name> - 2011-11-11 11:47 -0500
      Re: Get keys from a dicionary John Gordon <gordon@panix.com> - 2011-11-11 17:28 +0000
  Re: Get keys from a dicionary John Gordon <gordon@panix.com> - 2011-11-11 16:25 +0000
    Re: Get keys from a dicionary macm <moura.mario@gmail.com> - 2011-11-11 08:36 -0800
  Re: Get keys from a dicionary Gelonida N <gelonida@gmail.com> - 2011-11-11 18:29 +0100
  Re: Get keys from a dicionary Gelonida N <gelonida@gmail.com> - 2011-11-11 18:45 +0100
    Re: Get keys from a dicionary John Gordon <gordon@panix.com> - 2011-11-11 17:51 +0000
  Re: Get keys from a dicionary alex23 <wuwei23@gmail.com> - 2011-11-13 21:42 -0800
  Re: Get keys from a dicionary alex23 <wuwei23@gmail.com> - 2011-11-13 21:44 -0800
  Multilevel dicts/arrays v. tuples as keys? [Was: Re: Get keys from a dicionary] Matej Cepl <mcepl@redhat.com> - 2011-11-14 11:05 +0100
    Re: Multilevel dicts/arrays v. tuples as keys? [Was: Re: Get keys from a dicionary] Tim Golden <mail@timgolden.me.uk> - 2011-11-14 10:42 +0000
    Re: Multilevel dicts/arrays v. tuples as keys? Peter Otten <__peter__@web.de> - 2011-11-14 11:47 +0100
      Re: Multilevel dicts/arrays v. tuples as keys? alex23 <wuwei23@gmail.com> - 2011-11-14 19:07 -0800

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