Syntaxerror: Name 'cows' Is Assigned To Before Global Declaration In Python3.6
Solution 1:
Python has no block scoping, only functions and classes introduce a new scope.
Because you have no function here, there is no need to use a global
statement, cows
and bulls
are already globals.
You have other issues too:
input()
returns a string, always.Indexing works on strings (you get individual characters), are you sure you wanted that?
user_input[index] == num
is always going to be false;'1' == 1
tests if two different types of objects are equal; they are not.user_input[index] in random_no
is also always going to be false, yourrandom_no
list contains only integers, no strings.
If the user is to enter one random number, convert the input()
to an integer, and don't bother with enumerate()
:
user_input = int(input("Guess the no: "))
for num in random_no:
if user_input == num:
cows += 1elif user_input in random_no:
bulls += 1
Solution 2:
You give cows a value before you declare it as global. You should declare your global scope first
Btw you dont need the global declarations. Just remove this line.
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