Re: [Zope] [python] creating variable names by adding 2 strings?

2001-01-22 Thread Dieter Maurer

Lee writes:
  I'm creating variables in python but I am having trouble creating them
  when they're *named* using other variables. Here's an example;
  
  while (p!=0):
   p+`p`= string.replace(component[control], ",", "") 
   # e.g. I want 'p1 = string.replace.blah...'
   p=p-1
   control=control+1
  
  == SyntaxError: can't assign to operator :(
Why do you want to do that?

  It is really strange, that you want computed variable names
  in local namespaces.

If you want them in an object, class or module, you could use
"setattr". If it should go into the current module,
you could use "globals()[name_expr]=value" (though the
Python spec says, this may change in future implementations).

Note, that security restrictions may prevent you from
using "setattr" in Python scripts.


Dieter

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Re: [Zope] [python] creating variable names by adding 2 strings?

2001-01-21 Thread Steve Spicklemire


Hi Lee,

   You could use a dictionary for this:

vars = {}

while (p!=0):
vars['p'+`p`] = string.replace(component[control], ",", "") 
p=p-1
control=control+1

then 'vars' will contain keys (e.g., 'p1', 'p2' etc.. ) and corresponding values.

If that's totally not what you want.. a little more context would help. 

;-)

-steve

--

Hi there,

I'm creating variables in python but I am having trouble creating them
when they're *named* using other variables. Here's an example;

while (p!=0):
p+`p`= string.replace(component[control], ",", "") 
# e.g. I want 'p1 = string.replace.blah...'
p=p-1
control=control+1

== SyntaxError: can't assign to operator :(

I've tried various things but I cannot find a solution. I've got a nasty
feeling that it's not possible...

If someone could confirm this or hopefully, tell me how to do it I would
be_extremely_grateful.

Thanks,

Lee (crossing his fingers)


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