using execfile() in class/instance methods

[Wayne Cuddy]

In article <90ueaf02n20 at news2.newsguy.com>, Alex Martelli wrote:
>"Wayne Cuddy" <wcuddy at lserv.ja10629.home> wrote in message
>news:slrn934t6r.s9l.wcuddy at lserv.ja10629.home...
>    [snip]
>> Your Example Worked But I Want Multiple Instances Of This Class And Be
>> Able To Pass The Filename As An Arg.
>
>So you don't want a class-attribute but an instance-attribute, OK, then you
>do need to pass the appropriate dictionary to execfile (no need for a
>locals/globals distinction here):
>
>class Ba:
>    def __init__(self, filename):
>        execfile('ba.txt', self.__dict__)
>    def bu(self):
>        print self.bn['key']
>
>ba = Ba('ba.txt')

Good, this is a usable solution for me..
>
>ba.bu()
>
>OK so far?
>
>> I Also Would Prefer That Bn Be A
>> Local Variable Of The Function Containing The Execfile() Call.  This
>
>The locals() dictionary is not guaranteed to be usable this way -- it
>will surely work for reading, but modifications to it will not
>necessarily be reflected in your local-variables (there's an important
>optimization behind this restriction, so, suffer it...!).
>
>Just pass any old dictionary and use it...!
>
>> Would Allow Me To Either Return It Or Bind It To Any Variable Name Of
>> The Instance.  So I Want To Do Something Like This:
>>
>> Class Bla:
>>       ...
>>       ...
>>       Def F1(Self,Filename):
>>   Execfile(Filename)
>>   Self.Dictfromdisk = Bn
>>
>>       Def F2(Self):
>>   Print Bn
>
>Didn't you just say that you wanted bn to be LOCAL to the function
>doing execfile?  If you got your wish, then here it would be local
>to f1, thus completely unknown in f2.
My, mistake should F2 should have contained: print self.distfromdisk..

>
>The only way f2 can access bn just like that if it is a GLOBAL
>variable, which you can obtain by using
>    execfile(filename,globals())
>in f1, but is a perfectly horrid idea IMHO.
>
>Apart from this weirdness in f2, f1 can be implemented easily:
>
>    def f1(self, filename):
>        a={}
>        execfile(filename, a)
>        self.dictFromDisk = a['bn']
>
>for example.
>
>
>Alex
>
>
>
I like your second solution better anyway.
You solved my problems... Thanks Alex