Category: Python
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Thinking with “map”
In the free Webinar I gave yesterday about functional programming, I mentioned that “map,” or its equivalent (e.g., Python’s list comprehensions), is a powerful tool that I use nearly every
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The relative speeds of str.format and %
My most recent blog post talked about the use of str.format instead of the % operator for interpolating values into strings. Some people who read the post wondered about their
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Teaching an old dog new tricks — or, how I learned to love Python’s str.format, and gave up on %
I have been programming in Python for many years. One of the things that I wondered, soon after starting to work in Python, was how you can get Perl-style variable
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Three Pythonic products: A (free) Webinar, a course, and an ebook
I love developing software. I also love helping people to learn how to develop better. That’s why I have been teaching programming classes for more than a decade, and why
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Summary of my “reduce” series
I teach Ruby and Python to a lot of people — in formal courses, and in one-on-one pairing sessions, both online and in person. I’ve found that for many people,
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Implementing “filter” with “reduce”, in Ruby and Python
We’re nearly at the end of my tour of the “reduce” function in Ruby and Python. Just as I showed in the previous installment how we can implement the “map”
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Implementing “map” with “reduce”, in Ruby and Python
This is another installment in my “reduce” series of posts, aimed at helping programmers understand this function, with examples in both Ruby and Python. So far, we have seen how
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Creating Python dictionaries with “reduce”
In the last few installments (first, second, third, and fourth) of this series, we saw how “reduce” can be used to build up a scalar value (such as a number
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Creating collections with “reduce”
In the first few parts of this series (first, second, and third), I introduced the “reduce” function, and showed how it can be used in a number of ways. However,
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Implementing “min” and “max” with “reduce”
This is the third installment of my “reduce” series of blog posts. For the first, see here, and for the second, see here. If you have been reading this series,