Python: keyboard input WITHOUT block?

[LightCode Gaming]

Same homework, different problem. 
I need a non-blocking way to get input (Input("") locks input until enter is hit) as to not block receiving messages.

 

Current code I have:

string = ""
while(cont):
    char = getch()
    print(char)
    if char != '\n' and char is not None:
        string = string+char
	else:
		#does it's thing with the string before reset
		string = ""

 

But it doesn't seem to grab the characters?

[Mr_KoKa]

@LightCode GamingIf you code on windows look for python msvcrt. On linux you would need to use select on sys.stdin to check if there is some data on standard input.