python - How do I create a variable number of variables? -

how accomplish variable variables in python?

here elaborative manual entry, instance: variable variables

i have heard bad idea in general though, , security hole in python. true?

you can use dictionaries accomplish this. dictionaries stores of keys , values.

>>> dct = {'x': 1, 'y': 2, 'z': 3} >>> dct {'y': 2, 'x': 1, 'z': 3} >>> dct["y"] 2 

you can use variable key names achieve effect of variable variables without security risk.

>>> x = "spam" >>> z = {x: "eggs"} >>> z["spam"] 'eggs' 

for cases you're thinking of doing like

var1 = 'foo' var2 = 'bar' var3 = 'baz' ... 

a list may more appropriate dict. list represents ordered sequence of objects, integer indices:

l = ['foo', 'bar', 'baz'] print(l[1])           # prints bar, because indices start @ 0 l.append('potatoes')  # l ['foo', 'bar', 'baz', 'potatoes'] 

for ordered sequences, lists more convenient dicts integer keys, because lists support iteration in index order, slicing, append, , other operations require awkward key management dict.