Remove dictionary from list

Question

If I have a list of dictionaries, say:

[{\'id\': 1, \'name\': \'paul\'},
 {\'id\': 2, \'name\': \'john\'}]

and I would like to remove the d

Answer 1

Here's a way to do it with a list comprehension (assuming you name your list 'foo'):

[x for x in foo if not (2 == x.get('id'))]

Substitute 'john' == x.get('name') or whatever as appropriate.

filter also works:

foo.filter(lambda x: x.get('id')!=2, foo)

And if you want a generator you can use itertools:

itertools.ifilter(lambda x: x.get('id')!=2, foo)

However, as of Python 3, filter will return an iterator anyway, so the list comprehension is really the best choice, as Alex suggested.