title: No module named 'scipy'
body: <p>I am writing my first machine learning program. I am totally new i am writing the python code in pycharm but i am getting error as below.
  i can't even find any tutorial for beginners maybe most people don't know it </p>
  
  <blockquote>
    <p>ModuleNotFoundError: No module named 'scipy'</p>
  </blockquote>
  
  <pre><code>from sklearn import  tree
  features = [[140,1],[130,1],[150,0],[170,0]]
  labels = [0,0,1,1]
  clf = tree.DecisionTreeClassifier()
  clf = clf.fit(features,labels)
  print(clf.predict([[150, 0]]))
  </code></pre>
  
  <blockquote>
    <p>Traceback (most recent call last):   File
    "C:/Users/LENOVO/PycharmProjects/MyPython/MyPyton.py", line 1, in
    
        from sklearn import  tree   File "C:\Users\LENOVO\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn__init__.py",
    line 134, in 
        from .base import clone   File "C:\Users\LENOVO\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\base.py",
    line 10, in 
        from scipy import sparse ModuleNotFoundError: No module named 'scipy'</p>
  </blockquote>