On 12 jul, 04:49, anethema <[EMAIL PROTECTED]> wrote: > > li = [ {'index': 0, 'transport': 'udp', 'service_domain': > > 'dp0.example.com'}, > > {'index': 1, 'transport': 'udp', 'service_domain': > > 'dp1.example.com'}, > > {'index': 0, 'transport': 'tcp', 'service_domain': > > 'dp0.example.com'}, > > {'index': 1, 'transport': 'tcp', 'service_domain': > > 'dp1.example.com'}] > > I like this solution: > > [{ 'transports' : [d['transport'] for d in li if > d['service_domain'] == dom], > 'service_domain': dom, > } for dom in set(d2['service_domain'] for d2 in li)] > > merely because it takes one line. Humorously enough, it appears to be > twice as efficient,
Correct me if I´m wrong, that is a O(n**2) solution, to O(n) problem.
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