On 05/17/11 11:16 AM, Keith Mitchell wrote:
On 05/17/11 11:12 AM, William Schumann wrote:
Keith,
I have one preliminary question:
On 05/16/11 07:29 PM, Keith Mitchell wrote:
...
ns_info.py:
...
225: This dict should be statically defined.
265-276: Statically define this somewhere.
What you mean by 'statically', and why?
I guess "global" would be more precise. Or rather, at the module level.
As written, every time the function is called, the dictionary is
reconstructed; and since the objects seemed to be only read-from, never
written-to, it seemed like they should be defined at the module level,
instead of as locals.
That's not true. Lists, dictionaries, tuples, etc. that can be
completely interpreted at compile time will be the same object every time:
#!/usr/bin/python2.6
def test():
propdict = { 'key': 'value' }
print "propdict id: %s" % id(propdict)
for i in range(3):
test()
$ python /tmp/test.py
propdict id: 135258836
propdict id: 135258836
propdict id: 135258836
With that said, you're right that a dictionary like this may be more
appropriately defined as a "constant" at the module level.
-Shawn
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