title: Trying to detect whether a variable/string is mixed case in Python
body: <p>I'm trying to write a simple program that detects wether or not a string is upper case, lower case or mixed case.</p>
  
  <p>I tried x.ismixed but it doesn't work</p>
  
  <p>I have also tried x == mixed.case</p>
  
  <p>This is the code:</p>
  
  <pre><code>x = input('Loud: ')
  
  if x.isupper():
    print("Quiet:", x.lower())
  
  elif x.ismixed():
    print (x.lower)
  
  else:
  
    print (x.lower)
  </code></pre>
  
  <p>The error code comes up with</p>
  
  <p>built-in method lower of str object at 0xf70445e0</p>
  
  <p>The output should be x.lower() but instead comes up with the code above.</p>
  
  <pre><code>Input: HEllO ThEre
  Output: hello there.
  </code></pre>