It seems to be an invariant of Python (insofar as Python has invariants)
that a module is executed at most once in a Python session. I have a
rather bizzare example that breaks this invariant: can anyone enlighten
me as to what is going on?
--- test.py ---
import imptest
execfile('subtest.py', dict(__name__ = 'subtest.py'))
--- imptest.py ---
print 'Imptest imported'
--- subtest.py ---
import imptest
---
$ python test.py
Imptest imported
Imptest imported
$
Hmm. If the value __name__ is omitted from the dictionary, or if its
value doesn't match at least 'subtest.' then the message is printed only
once (for example, passing dict(__name__='subtest') produces one
"imported" message).
This happens with both python 2.4 and 2.3. I don't get it.
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