typeerror - how can i prevent this error in my code" int() can't convert non-string with explicit base in python."?

Question

there is two things i can't understand:

1-What does "nonstring - with excplicit base" means?
2 How to solve it?

you can check the code and the error it appears on the line 25 here.

Error message:

dec_list.append(int(rmsg[x],2)) 
TypeError: int() can't convert non-string with explicit base

its obvous im not a python guy but im trying to do smth from time to time.

Answer 1

int is not a str, so convert it to a string first:

dec_list.append(int(str(rmsg[x]), 2)) 

It is much more Pythonic to use a list comprehension instead of a for-loop like that, though:

dec_list = [int(str(c), 2) for c in rmsg]