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MichaŽl-D
October 11th, 2011, 03:31 PM
Hi all,

is there a way to make python variable names variable (compose them out of different variables)?

an example:

so that

var = 1
("string", var) = "variable value"
print string1gives

variable valueis this possible (and how...)?

thx in advance,

M.

karlson
October 11th, 2011, 03:39 PM
Hi all,

is there a way to make python variable names variable (compose them out of different variables)?

an example:

so that

var = 1
("string", var) = "variable value"
print string1gives

variable valueis this possible (and how...)?

thx in advance,

M.

Is there a reason to use reference by name instead of a list/array?

I don't think Python something like Perl reference by name.

Erdaron
October 11th, 2011, 03:40 PM
I can't think of a way to do exactly what you want, but at least there is a workaround using dictionary keys. Since the keys can be any string, it's kind of like a variable with a variable name?

>>> a = {}
>>> a['eek' + 'whoa'] = 1
>>> a['eekwhoa']
1

The name of the dictionary stays fixed, of course.

ofnuts
October 11th, 2011, 03:47 PM
Hi all,

is there a way to make python variable names variable (compose them out of different variables)?

an example:

so that

var = 1
("string", var) = "variable value"
print string1gives

variable valueis this possible (and how...)?

thx in advance,

M.See the various forms of the exec() built-in:


>>> exec('%s=%d' % ('x',12345))
>>> print x
12345

Tony Flury
October 11th, 2011, 04:21 PM
If i had to do this, I would go with a dictionary, either one you construct yourself, or you can access the dictionaries which are built that contain the locals, globals, and instance varibales (__locals__, __globals__ and <instance>.__dict__) I think.
Note : I think they are the right names (but i might be wrong - I don't have python on this PC).