I don’t know why Google Colabs defaults to Python 2, regardless, it’s extremely easy to change your notebook to Python 3. It’s so easy I don’t even have more than one paragraph of words to write about how to do it. Here are the steps:
Click on Runtime>Change Runtime Type
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From the Dropdown select Python 3. You can even select GPU as well to speed up your machine learning tasks.
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Done. Now wasn’t that easy?