Marc Christiansen <[EMAIL PROTECTED]> wrote:
> James T. Dennis <[EMAIL PROTECTED]> scribis:
>> In fact I realized, after reading through tempfile.py in /usr/lib/...
>> that the following also doesn't "work" like I'd expect:
>> # foo.py
>> tst = "foo"
>> def getTst(arg):
> If I change this line:
>> return "foo-%s" % arg
> to:
> return "%s-%s" % (tst, arg)
>> # bar.py
>> import foo
>> foo.tst = "bar"
>> print foo.getTst("testing")
>> foo-testing <<<----- NOT "bar-testing"
> Then "python bar.py" prints "bar-testing".
> 0:[EMAIL PROTECTED]:/tmp> cat foo.py
> tst = "foo"
> def getTst(arg):
> return "%s-%s" % (tst,arg)
> 0:[EMAIL PROTECTED]:/tmp> cat bar.py
> import foo
> foo.tst = "bar"
> print foo.getTst("testing")
> 0:[EMAIL PROTECTED]:/tmp> python bar.py
> bar-testing
> And regarding the tempfile.template problem, this looks like a bug.
> Because all functions in tempfile taking a prefix argument use "def
> function(... , prefix=template, ...)", only the value of template at
> import time matters.
> Adia?, Marc
I suppose my real sample code was def getTst(arg=tst):
Oddly I've never come across that (the fact that defaulted arguments are
evaluated during function definition) in my own coding and I guess there
are two reasons for that: I try to avoid global variables and I usually
use defaulted variables of the form:
def (foo=None):
if foo is None:
foo = self.default_foo
--
Jim Dennis,
Starshine: Signed, Sealed, Delivered
--
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