Learners.ipynb Cell 4 throws a NameError "name 'perceptron_learner' is not defined"

[Becker-Asano]

Setup

Win64, python 3.8.3, followed instructions in Readme.md to install dependencies

How to recreate problem

• jupyter-notebook.exe .\Learners.ipynb
• run all cells
• second cell gives

  
  ---------------------------------------------------------------------------
  NameError                                 Traceback (most recent call last)
  Input In [2], in <cell line: 1>()
  ----> 1 raw_net = [InputLayer(input_size), DenseLayer(input_size, output_size)]

NameError: name 'input_size' is not defined

(ignored)
- third code cell runs fine
- fourth cell wirh `pl = perceptron_learner(iris, epochs=500, learning_rate=0.01, verbose=50)` results in this error:

---

NameError Traceback (most recent call last) Input In [4], in <cell line: 1>() ----> 1 pl = perceptron_learner(iris, epochs=500, learning_rate=0.01, verbose=50)

NameError: name 'perceptron_learner' is not defined

# Question
Where is `perceptron_learner` supposed to be defined, if at all?