Removing key values pairs from a list of dictionaries
list-comprehension, python
Solution
If you really want to use a list comprehension, combine it with a dict comprehension:
[{k: v for k, v in d.iteritems() if k != 'mykey1'} for d in mylist]
Substitute `.iteritems()` for `.items()` if you are on python 3.
On python 2.6 and below you should use:
[dict((k, v) for k, v in d.iteritems() if k != 'mykey1') for d in mylist]
as the `{key: value ...}` dict comprehension syntax was only introduced in Python 2.7 and 3.
Problem
I have a list of dictionaries such as: ``` [{'mykey1':'myvalue1', 'mykey2':'myvalue2'}, {'mykey1':'myvalue1a', 'mykey2':'myvalue2a'}] ``` I need to remove all key values pairs from all dictionaries where the key is equal to mykey1. I could do this by looping through and using the del statement, but I am wondering how I would create a new list using list comprehensions or lambdas which would just remove all key value pairs where the key was mykey1. Many thanks