light9: light8/util.py comparison

Initial revision

comparison

equal deleted inserted replaced

--1:000000000000
+:45b12307c695
+def maxes(dicts):
+'''
+({'a' : 5, 'b' : 9}, {'a' : 10, 'b' : 943})
+'''
+newdict = {}
+for d in dicts:
+for k,v in d.items():
+newdict[k] = max(v, newdict.get(k, 0))
+return newdict
+def scaledict(d,scl):
+# scales all values in dict and returns a new dict
+return dict([(k,v*scl) for k,v in d.items()])
+# class Setting that scales, maxes
+def subsetdict(d, dkeys, default=0):
+"""Subset of dictionary d: only the keys in dkeys.  If you plan on omitting
+keys, make sure you like the default."""
+newd = {} # dirty variables!
+for k in dkeys:
+newd[k] = d.get(k, default)
+return newd

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