Bugs item #1551113, was opened at 2006-09-02 13:27
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Alan (aisaac0)
Assigned to: Nobody/Anonymous (nobody)
Summary: random.choice(setinstance) fails
Initial Comment:
It seems perverse that random.choice cannot pick from
a set.
(Maybe it is also perverse that it cannot pick a key
from a dict.)
The current definition is
def choice(self, seq):
"""Choose a random element from a non-empty
sequence."""
return seq[int(self.random() * len(seq))] #
raises IndexError if seq is empty
How about something along the lines of:
def choice(self, seq):
"""Choose a random element from a non-empty
sequence."""
idx = int(self.random() * len(seq))
try:
result = seq[idx] # raises IndexError if seq
is empty
except TypeError:
result = list(seq)[idx]
return result
----------------------------------------------------------------------
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