Posted By

magicrebirth on 12/22/09

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Last Edited at 12/22/09 03:10pm

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Python: from two lists to a dictionary

/ Published in: Python

create a dictionary from the data in two lists

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# [PSST] Copied for good measure
ListA = ['10', '10', '20', '20', '20', '24']
ListB = ['23', '44', '11', '19', '57', '3']
 
d = {}
for a, b in map(None, ListA, ListB):
	if not d.has_key(a):
		d[a] = [b]
	else:
		d[a].append(b)
print d
 
 
# result: {'24': ['3'], '10': ['23', '44'], '20': ['11', '19', '57']}