Re: [Python-ideas] Remapping a table's keys

On Thu, Nov 4, 2010 at 6:07 PM, Andrey Fedorov anfedorov@gmail.com wrote:

Hi guys, I often run into the problem when I need to systematically rename a bunch of keys in a table. For example, a JSON API returns an object where I need to map "Media Cost" to "adjusted_partner_cost", "Impressions" to "bid_count", etc. One way of doing this is:

key_map = {     'Media Cost': 'adjusted_partner_cost',     'Impressions': 'bids_won',     'Day': 'date' } mykeys = {} for k, v in dict_from_elsewhere.items():   if k in key_map:     ret[key_map[k]] = v   else:     ret[k] = dict_from_elsewhere[k]

# Requires Python 2.7+ (dict comprehension) ret = {key_map.get(k, k) : v for k,v in dict_from_elsewhere.items()}

Cheers, Chris -- http://blog.rebertia.com