Palindromi

def palindrome(y):
    x=list(y)
    end=len(x)-1
    steps=0
    for i in range(len(x)//2):
        if x[i]!=x[end-i]:
            x[i]=x[end-i]
            steps+=1
    
    return steps

print(palindrome(sys.argv[1]))
print(palindrome("saippuakauppias"))

Test 1 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 2 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 3 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 4 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 5 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 6 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 7 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 8 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 9 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?

Test 10 (public)

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 12, in <module>
    print(palindrome(sys.argv[1]))
NameError: name 'sys' is not defined. Did you mean: abs?