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|Amazon UK||4 days ago||68.41||$49.09||You save $19.32|
|Amazon US||yesterday||67.07||$49.09||You save $17.98|
|Book Depository US||yesterday||54.51||$49.09||You save $5.42|
Eric Matthes is a high school science and math teacher living in Alaska where he teaches Introduction to Python. He has been writing programs since he was five years old.