One objective of the Chain of Command design pattern is to be able to write a bunch of functions that link together. The form a chain of alternative implementations. The idea is the have alternatives that vary in their ability to compute a correct answer. If algorithm 1 doesn’t …
more ...I've written a lot about CSV processing. Here are some examples {tag}csv.
It crops up in my books. A lot.
In all cases, though, I make the implicit assumption that my readers already know a lot of Python. This is a disservice to anyone who's getting started.
Read this: NoSQL Database Doesn’t Mean No Schema It was fun to write. And the code works really nicely.
more ...From a reader.
more ...I recently purchased a copy of 'Modern Python Cookbook' but I found that the code listings in the epub file were indented which caused a problem when reading on my tablet. (I reverted to epub as the PDF version froze in the Bookari ereader software.)
I unzipped …
A Real Email.
So, please consider creating a blog post w/ a title something like "Solving the Fred Flintstone Problem using Monads in Python and Haskell"
First. There's this: https://pypi.python.org/pypi/PyMonad/ and this: http://www.valuedlessons.com/2008/01/monads-in-python-with-nice-syntax.html. Also, see https://en.wikipedia …
more ...Let's talk real-world functional programming. Disclosure: I'm a fan of functional programming in Python. (This: https://www.packtpub.com/application-development/functional-python-programming)
The usual culprits for functional programming are map(), filter(), generator functions, and the various comprehensions. This is very pleasant and can lead to succinct, expressive code.
The reduce operation …
more ...In compiled languages, the build script or makefile is pretty important. Java has maven (and gradle and ant) for this job.
Python doesn't really have much for this. Mostly because it's needless.
However.
Some folks like the idea of a build script. I've been asked for suggestions.
First and foremost …
more ...Warning: Long Boring Anecdote: Conclusions will be drawn from a single example.
First, this quote:
"All your suggestions were great if I had wanted to do a systematic study and truly understand. The goal is to understand and learn as little as possible to be able to undertake the code …more ...
Here's the quote:
...it is amazing how Windows is “special.” Back when ..., special things had to be done for Windows. Python continues the tradition w/ an entire section in its doco titled “3. Using Python on Windows”
I wasn't sure what to make of this.
It appeared that they want …
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