Category: Python
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Globbing and Python’s “subprocess” module
Python’s “subprocess” module makes it really easy to invoke an external program and grab its output. For example, you can say import subprocess print(subprocess.check_output(‘ls’)) and the output is then $
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Five Python function parameters you should know and use
One of Python’s mantras is “batteries included.” which means that even with a bare-bones installation, you can do quite a bit. You can (and should) install packages from PyPI, but
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One-day birthday sale — on July 14th, get 47% off my courses, books, and subscriptions
Today is my birthday! To celebrate, I’m offering a one-day 47% sale on many of my products: My upcoming live classes (on functional Python, advanced Python objects, and decorators) are
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Announcing: Three live Python courses
If you’re like many of the Python developers I know, the basics are easy for you: Strings, lists, tuples, dictionaries, functions, and even objects roll off of your fingers and
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Raw strings to the rescue!
Whenever I teach Python courses, most of my students are using Windows. And thus, when it comes time to do an exercise, I inevitably end up with someone who does
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Announcing: Weekly Python Exercise
I have a great job. Really, I’m quite fortunate: For many years, I’ve spent nearly every day helping engineers at some of the world’s largest and best companies (including Apple,
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Boolean indexing in NumPy and Pandas: A free e-mail course for aspiring data scientists
For nearly two years, I have been teaching my introductory course in data science and machine learning to companies around the world. On the one hand, participants are excited by
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2+2 might be 4, but what is True+True?
In Python, we know that we can add two integers together: >> 2 + 2 4 And of course, we can add two strings together: >> ‘a’ + ‘b’ ‘ab’
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Python function brain transplants
What happens when we define a function in Python? The “def” keyword does two things: It creates a function object, and then assigns a variable (our function name) to that
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The five-minute guide to setting up a Jupyter notebook server
Nearly every day, I teach a course in Python. And nearly every day, I thus use the Jupyter notebook: I do my live-coding demos in it, answer students’ questions using