Re: [Tutor] Deleting an entry from a dictionary

[Smith, Jeff]

Title: Message

Although that works, I kinda prefer

    del meals['breakfast']

since that explicitly indicates what is going on.

 

Speaking of which, I note that there is a pop for lists but no shift.  Is there a Python idiom for this or is it just

    val = mylist.shift() =>    (val, mylist) = (mylist[0], mylist[1:])

which seems a little clumsy.

 

Jeff

 

 

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Bark
Sent: Tuesday, August 02, 2005 5:17 PM
To: Greg Lindstrom
Cc: tutor@python.org
Subject: Re: [Tutor] Deleting an entry from a dictionary

meals.pop(key) will do it.
Example:
>>> meals = {}
>>> meals['breakfast'] = 'slimfast'
>>> meals['lunch'] = 'slimfast'
>>> meals['dinner'] = 'something sensible'
>>> meals
{'lunch': 'slimfast', 'breakfast': 'slimfast', 'dinner': 'something sensible'}
>>> meals.pop("breakfast")
'slimfast'
>>> meals
{'lunch': 'slimfast', 'dinner': 'something sensible'}

On 8/2/05, Greg Lindstrom <[EMAIL PROTECTED] > wrote:

Hello-
This must be simple, but for the life of me I can't figure out how to
delete an entry from a dictionary.  For example,

meals = {}
meals['breakfast'] = 'slimfast'
meals['lunch'] = 'slimfast'
meals['dinner'] = 'something sensible'

How do I eliminate 'lunch' from the dictionary so that I only have
'breakfast' and 'dinner'?

Thanks!
--greg

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