I have declared a variable as"
a1 = 10
Now in a function I need to call this variable by adding "a"+"1". However result is a1 in string and not above declared variable.
Here is the code:
a1 = 10
b = "a"+"1"
print(b)
a1
when I print b, answer is a1, instead of 10. How can I change this concatenate to declared variable?
if I understand, you want to dynamically create the name of a variable and access it :
you can use dict for that i think
a1, a2, a3 = 10, 11, 12
var_dict = {'a1': a1, 'a2': a2, 'a3': a3}
for i in [1, 2, 3]:
print(var_dict[f"a{i}"]) # f"a{i}" => 'a1', 'a2', 'a3' according to i value
You can use python inbuilt function eval for such requirements like below :-
>> a1 = 10
>> b = "a"+"1"
>> print(eval(b))
>> 10
The statement b = 'a'+'1' means that your new variable b is a string:
>>> b = ['a1']
If you are interested in printing a1, you have just to do:
print(a1)
Making a sum of the letters of a declared variable does not result in the variable itself.