title: fit() Missing 1 Required Positional 'y'
body: <p>I am practicing a <code>sklearn</code> modeling on <code>load_iris</code> data. When I initiate <code>LogisticRegression</code> from <code>sklearn.linear_model</code> I receive an error when I try to fit the data. </p>
  
  <p>Below you may check my code:</p>
  
  <pre><code>      from sklearn.datasets import load_iris
        from sklearn.linear_model import LogisticRegression 
  
        logreg = LogisticRegression
        iris = load_iris()
  
        X = iris.data
        y = iris.target
  
        logreg.fit(X,y)
  </code></pre>
  
  <p>The code above prints out the following error:</p>
  
  <blockquote>
    <p>fit() missing 1 required positional argument y</p>
  </blockquote>
  
  <p>Any help would be appreciated!</p>