How to iterate on a changing dictionary

[MRAB]

On 21/06/2011 12:51, Gurpreet Singh wrote:
> Perhaps this is the simplest and best solution which appears in this case. Just copy the desired items to a new dictionary and discard the original one.
>
> import re
> myDict={'a':'alpha','b':'beta','c':'charley','d':'disney'}
> myNewDict={}
> for k,v in myDict.iteritems():
>      if re.search("a",v)!=None:
>         myNewDict[k]=v
> print myDict
> print myNewDict

Using regex is overkill. Try this instead:

     if "a" in v: