valuedlessons.com

Most-linked posts?

1. Monads in Python, with nice syntax
   9 people · 9 mentions · first linked 2008-01-08
2. Monads in Python (with nice syntax)
   2 people · 2 mentions · first linked 2012-12-23
3. /2008/02/pysec-monadic-combinatoric-parsing-in.html
   2 people · 2 mentions · first linked 2010-07-20
4. Python memory usage of common types
   2 people · 2 mentions · first linked 2009-09-01

What Hacker News says?

1. hobs · 2015-06-17

   Also SQL variants are turing complete http://www.valuedlessons.com/2009/08/sql-is-now-turing-compl...

   Comment linking /2009/08/sql-is-now-turing-complete.html

   on “Building Street Fighter II in Ruby [video]”
2. llambda · 2012-12-23

   Submitted Monads in Python (with nice syntax) as a story · 92 points

   HN discussion
3. fizixer · 2016-01-20

   > Do I need to know Haskell? Yes. This is enough for me to reject this blogpost. No you don't need a specific language to implement any functionality that can be implemented by a turing-complete language. I watched Crockford's monad talk [1]. He used javascript. The only problem with that talk is that he spent about 10 seconds or less explaining what a monad is (and the rest of the talk on implementation issues and…

   Comment linking /2008/01/monads-in-python-with-nice-syntax.html

   on “The Monad Challenges: Jump start your understanding of monads”
4. limist · 2010-07-20

   Submitted Monads in Python, with nice syntax as a story · 39 points

   HN discussion
5. codygman · 2014-07-18Recommends

   Monads are useful and unknowingly created in other languages all the time [0]. If you aren't quite comfortable enough with monads to follow the first link, I found this implementing monads in python tutorial[1] to be a huge help. For those that want to play with Monads in Python, check out PyMonad[2]. 0: http://blog.sigfpe.com/2006/08/you-could-have-invented-monad... 1: http://www.valuedlessons.com/2008/01/monads-in…

   Comment linking /2008/01/monads-in-python-with-nice-syntax.html

   on “A Gentle Introduction to Monad Transformers – or, Values as Exceptions”
6. derwiki · 2009-09-01

   Submitted Python memory usage of common types as a story · 32 points

   HN discussion
7. jmillikin · 2010-02-23

   C and Java can't represent monads at all, since they don't support closures. C# and Python can, sort of, but their syntax and object-oriented semantics make it somewhat difficult. I don't know C# well, and Python needs a lot of magic[1] to get reasonable-looking code. Here's a Python example. It's not a direct translation, but is close enough that you should be able to figure out the original. I've included the Hask…

   Comment linking /2008/01/monads-in-python-with-nice-syntax.html

   on “Try Haskell”
8. nickb · 2008-01-08

   Submitted Monads in Python (with nice syntax!) as a story · 7 points

   HN discussion
9. yablak · 2017-07-09Recommends

   A parser combinator may be more powerful? Not sure. The python parsec package is really terribly documented, but there's a good example here: http://www.valuedlessons.com/2008/02/pysec-monadic-combinato... EDIT: The name of the package may have changed; it looks like this is the pypi package being documented (if not; i'm confused because pypi's pysec package is something totally different): https://pypi.python.org/p…

   Comment linking /2008/02/pysec-monadic-combinatoric-parsing-in.html

   on “Show HN: Using functions to construct Regex in Python”
10. danw · 2008-01-23

    Submitted Garlic Programmers for Silver Code? How your code base affects productivity as a story · 6 points

    HN discussion
11. a3n · 2015-09-10

    "It's a pattern." "All useful languages have monads ... nearly impossible to avoid." So here's a post on Python (hopefully useful) and monads, it appears to be implementing a pattern, although I don't think I would have ever stumbled across it naturally. http://www.valuedlessons.com/2008/01/monads-in-python-with-n... And here's a library implementing monads and other stuff: https://pypi.python.org/pypi/PyMonad/ It s…

    Comment linking /2008/01/monads-in-python-with-nice-syntax.html

    on “Monads Are Not Metaphors (2010)”
12. teyc · 2012-01-31

    Submitted Simple Reactive Programming with Python as a story · 2 points

    HN discussion
13. pthatcherg · 2011-11-26

    That's funny. I implemented almost the exact same thing a few years ago, although mine is arguably more complete :) https://github.com/pthatcher/pyrec Here's my original post about it: http://www.valuedlessons.com/2009/10/introducing-pyrec-cure-... And here's my analysis of how much less memory it uses: http://www.valuedlessons.com/2008/10/blog-post.html

    Comment linking /2008/10/blog-post.html

    on “Stop passing naked dictionaries around: Introducing DStruct for Python”
14. ghosthamlet · 2019-05-23

    Submitted Monads in Python (With Nice Syntax)(2008) as a story · 1 points

    HN discussion
15. gxti · 2010-07-20

    The post is from 2008, and this seems to be the follow-up: http://www.valuedlessons.com/2008/02/pysec-monadic-combinato...

    Comment linking /2008/02/pysec-monadic-combinatoric-parsing-in.html

    on “Monads in Python, with nice syntax”
16. amirouche · 2015-09-10

    Submitted Monads in Python as a story · 1 points

    HN discussion
17. pmiller2 · 2009-11-24Recommends

    Here is my favorite monad tutorial: http://www.valuedlessons.com/2008/01/monads-in-python-with-n... . The reason I like it is because it uses Python rather than Haskell while pointing out that you can build monads in any language that supports objects or closures. Actually, now that I think about it, it seems to me that pythonic monads should really be context managers, so they can be used like: with SomeMonad: do s…

    Comment linking /2008/01/monads-in-python-with-nice-syntax.html

    on “You Could Have Invented Monads (And Maybe You Already Have)”
18. dustingetz · 2012-01-02

    Submitted Monads in python [ed: *mind explodes*] as a story · 1 points

    HN discussion
19. draegtun · 2010-07-20

    Submitted List Monad in Ruby and Python as a story · 1 points

    HN discussion

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