SYMBOL INDEX (5 symbols across 2 files)

FILE: 03_Programming/21_install-pkgs.py
  function install (line 8) | def install(package):

FILE: 04_Machine-Learning/22_perceptron.py
  class Perceptron (line 10) | class Perceptron(object):
    method __init__ (line 12) | def __init__(self):
    method predict (line 36) | def predict(self, row, weights):
    method train_weights (line 50) | def train_weights(self):