Glenn Hutchings wrote:
On Fri, 08 May 2009 19:14:52 +0200, Marco wrote:
I import a module and then the name space of the importing module seems do
be overwritten.
my_name = __name__
print my_name
print len(dir())
from x import y as z
print __name__
print len(dir())
print my_name
->
__main__
119
x
117
unhandled NameError "name 'my_name' is not defined"
Interesting. Here's one possibility for the contents of module x.py:
import sys
del sys.modules['__main__'].my_name
y = 42
I can't think of any other way apart from grovelling through sys.modules.
OK, here's one way to see more detail:
import sys
my_name = __name__
pre = set(sys.modules), set(dir())
from x import y as z
post = set(sys.modules), set(dir())
print 'Modules added: %s, removed: %s' % (
post[0] - pre[0], pre[0] - post[0])
print 'Globals added: %s, removed: %s' % (
post[1] - pre[1], pre[1] - post[1])
--Scott David Daniels
scott.dani...@acm.org
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