Algorithms For Dummies

3. 

Type A4D; 03; Sample and press Enter.

The new name tells you that this is a file for Algorithms For Dummies, Chapter 3, 

Sample.ipynb. Using this naming convention lets you easily differentiate these 

files from other files in your repository.

FIGURE 3-8: 

A notebook 

contains cells 

that you use to 

hold code.

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62

 

   

  PART 1 

 Getting Started

Of course, the Sample notebook doesn’t contain anything just yet. Place the cursor 

in the cell, type print('Python is really cool!'), and then click the Run button (the 

button with the right-pointing arrow on the toolbar). You see the output shown in 

Figure 3-10. The output is part of the same cell as the code. (The code resides in a 

square box and the output resides outside that square box, but both are within the 

cell.) However, Notebook visually separates the output from the code so that you 

can tell them apart. Notebook automatically creates a new cell for you.

FIGURE 3-10: 

Notebook uses 

cells to store 

your code.

FIGURE 3-9: 

Provide a new 

name for your 

notebook.

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CHAPTER 3