Retain all entries except for one key python

Question

I have a python dictionary. Just to give out context, I am trying to write my own simple cross validation unit.

So basically what I want is to get all the values exc

Answer 1

Given a dictionary say

d = {
     2: 2, 5: 16, 6: 5,
     7: 6, 11: 17, 12: 9,
     15: 18, 16: 1, 18: 16,
     19: 17, 20: 10
     }

then the simple comprehension example would attain what you possibly desire

[v for k,v in d.iteritems() if k not in (2,5)]

This example lists all values not with keys {2,5}

for example the O/P of the above comprehension is

[5, 6, 1, 17, 9, 18, 1, 16, 17, 10]