can I do it the otherway, that issavedata('nameoflist')
for limited cases where your variable is defined globally, you
can use:
>>> a = [1,2,3,4]
>>> def save(s):
... print globals().get(s, "UNDEFINED")
...
>>> save("a")
[1, 2, 3, 4]
>>> save("b")
UNDEFINED
>>> b = (6,5,4,3)
>>> save("b")
(6, 5, 4, 3)
However, it's a hideous hack, and fragile as demonstrated by
>>> x = 7000
>>> def baz():
... x = (7,8,9) # this isn't in save()'s globals()
... save("x")
...
>>> baz()
7000
>>> x = 8000
>>> baz()
8000
and using locals() doesn't help either:
print locals().get(s, globals().get(s, "UNDEFINED"))
and has even weirder (but totally understandable) behavior:
>>> save("s") # "s" hasn't been defined in globals()
's'
Just pass the filename as a string, and skip trying to sniff
internal variable-names. Or you'll experience a world of headaches.
-tkc
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