[Haskell] Haskell Weekly News: Issue 208

Thu Nov 17 03:05:38 CET 2011

Welcome to issue 208 of the HWN, a newsletter covering developments in
the Haskell community. This release covers the week of November 6 to
12, 2011.

You can find the HTML version at:
http://contemplatecode.blogspot.com/2011/11/haskell-weekly-news-issue-208.html

New and Updated Projects

   * GHC (Ian Lynagh; 7.2.2) bugfix release for the 7.2 branch.
     [1] http://goo.gl/eB4X6

   * CoreErlang (Alex Kropivny; 0.0.2) New maintainer, plus some bug
     fixes.
     [2] http://goo.gl/TMUWs

   * virthualenv (Bartek ƒwik≈owski) A tool inspired by Python's
     virtualenv.
     [3] http://goo.gl/3Jvc0

   * transformers-base, transformers-abort, monad-abort-fd (Mikhail
     Vorozhtsov).
     [4] http://goo.gl/DRNgt

Quotes of the Week

   * Nimatek: People shouldn't be able to add two and two in Haskell
     without knowing monoids!

   * shachaf: Sometimes things are complicated because the domain is
     complicated. Other times things are complicated because edwardk.

   * shachaf: It's-a me, MonadIO!

   * elliott: a typeclass is nothing without semantics

   * Jafet: I didn't know what your question was so I answered the
     question that I liked

   * steakknife: Skip multidimensional types and go straight types that
     can express general relativity.

   * ddarius: "use the right platitude for the job"

   * balor: hmm....do not try to compile a file with a 30mb string in it

Top Reddit Stories

   * Quick poll: upvote if you think GHC should enable -O by default,
downvote if you think -O0 should continue to be the default
     Domain: self.haskell, Score: 68, Comments: 46
     On Reddit: [5] http://goo.gl/q43Ur
     Original: [6] http://goo.gl/q43Ur

   * What's going on with "id id id ... id 0"?
     Domain: self.haskell, Score: 46, Comments: 25
     On Reddit: [7] http://goo.gl/a57l0
     Original: [8] http://goo.gl/a57l0

   * HaskellDB: A long tutorial
     Domain: chrisdone.com, Score: 45, Comments: 6
     On Reddit: [9] http://goo.gl/FYBiU
     Original: [10] http://goo.gl/794G2

   * The Agda mailing list has the best questions [somewhat off topic]
     Domain: lists.chalmers.se, Score: 41, Comments: 1
     On Reddit: [11] http://goo.gl/ec5gB
     Original: [12] http://goo.gl/ODpKV

   * Virtual Haskell Environment
     Domain: paczesiowa.blogspot.com, Score: 40, Comments: 33
     On Reddit: [13] http://goo.gl/17qDB
     Original: [14] http://goo.gl/V7onW

   * Why doesn't Haskell's Prelude.read return a Maybe?
     Domain: stackoverflow.com, Score: 39, Comments: 44
     On Reddit: [15] http://goo.gl/vceL7
     Original: [16] http://goo.gl/ETu1j

   * First release of Kansas Lava
     Domain: ittc.ku.edu, Score: 32, Comments: 1
     On Reddit: [17] http://goo.gl/bj8vw
     Original: [18] http://goo.gl/nhAho

   * A major new release of the statistics library
     Domain: serpentine.com, Score: 28, Comments: 2
     On Reddit: [19] http://goo.gl/dYwQd
     Original: [20] http://goo.gl/7QkKY

   * TRYDSH - Test Your Code
     Domain: dbwiscam.informatik.uni-tuebingen.de, Score: 27, Comments: 3
     On Reddit: [21] http://goo.gl/qbZyA
     Original: [22] http://goo.gl/IiRf6

   * ScalableServer-0.1 - Providing an easy API for
attoparsec/enumerator/blaze based TCP services
     Domain: github.com, Score: 20, Comments: 14
     On Reddit: [23] http://goo.gl/aXqQ7
     Original: [24] http://goo.gl/Z1zcm

   * Python 3 Implementation in Haskell [x-post from programming.reddit.com]
     Domain: reddit.com, Score: 19, Comments: 0
     On Reddit: [25] http://goo.gl/lDJBr
     Original: [26] http://goo.gl/UrWld

   * let's derive Eq.(==) -- reflexivity not guaranteed
     Domain: self.haskell, Score: 16, Comments: 11
     On Reddit: [27] http://goo.gl/1ANU9
     Original: [28] http://goo.gl/1ANU9

   * Haskell and High-Performance Computing (HPC)
     Domain: self.haskell, Score: 16, Comments: 7
     On Reddit: [29] http://goo.gl/AZQPv
     Original: [30] http://goo.gl/AZQPv

Top StackOverflow Questions

   * Why doesn't Haskell's Prelude.read return a Maybe?
     votes: 29, answers: 4
     Read on SO: [31] http://goo.gl/ETu1j

   * Choosing between a class and a record
     votes: 27, answers: 3
     Read on SO: [32] http://goo.gl/Dn5FT

   * Function using foldr is too eager
     votes: 9, answers: 3
     Read on SO: [33] http://goo.gl/jUJxG

   * Odd results from monad transformer benchmark. A bug?
     votes: 9, answers: 2
     Read on SO: [34] http://goo.gl/qlvDj

   * Binary instance for an existential
     votes: 8, answers: 3
     Read on SO: [35] http://goo.gl/cHzhb

   * GHC Install Without Root
     votes: 7, answers: 2
     Read on SO: [36] http://goo.gl/mJnx5

   * Fixed point combinator in Haskell
     votes: 7, answers: 5
     Read on SO: [37] http://goo.gl/K4VcI

   * What's the best way to write facebook apps in haskell?
     votes: 6, answers: 1
     Read on SO: [38] http://goo.gl/HeXOp

   * Creating a list by cumulatively adding elements of another list: Haskell
     votes: 6, answers: 4
     Read on SO: [39] http://goo.gl/neP6s

   * ghci environment dump
     votes: 6, answers: 2
     Read on SO: [40] http://goo.gl/EnKpp

Until next time,
   Daniel Santa Cruz

References

   1. http://permalink.gmane.org/gmane.comp.lang.haskell.general/19017
   2. http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/93712
   3. http://permalink.gmane.org/gmane.comp.lang.haskell.general/19011
   4. http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/93802
   5. http://www.reddit.com/r/haskell/comments/m5yhx/quick_poll_upvote_if_you_think_ghc_should_enable/
   6. http://www.reddit.com/r/haskell/comments/m5yhx/quick_poll_upvote_if_you_think_ghc_should_enable/
   7. http://www.reddit.com/r/haskell/comments/m7uph/whats_going_on_with_id_id_id_id_0/
   8. http://www.reddit.com/r/haskell/comments/m7uph/whats_going_on_with_id_id_id_id_0/
   9. http://chrisdone.com/posts/2011-11-06-haskelldb-tutorial.html
  10. http://www.reddit.com/r/haskell/comments/m2df2/haskelldb_a_long_tutorial/
  11. https://lists.chalmers.se/pipermail/agda/2011/003493.html
  12. http://www.reddit.com/r/haskell/comments/m8iwo/the_agda_mailing_list_has_the_best_questions/
  13. http://paczesiowa.blogspot.com/2011/11/virtual-haskell-environment.html
  14. http://www.reddit.com/r/haskell/comments/m39v5/virtual_haskell_environment/
  15. http://stackoverflow.com/questions/8066850/why-doesnt-haskells-prelude-read-return-a-maybe
  16. http://www.reddit.com/r/haskell/comments/m7agm/why_doesnt_haskells_preluderead_return_a_maybe/
  17. http://ittc.ku.edu/csdl/fpg/Tools/KansasLava
  18. http://www.reddit.com/r/haskell/comments/m3nss/first_release_of_kansas_lava/
  19. http://www.serpentine.com/blog/2011/11/10/a-major-new-release-of-the-haskell-statistics-library/
  20. http://www.reddit.com/r/haskell/comments/m8cox/a_major_new_release_of_the_statistics_library/
  21. http://dbwiscam.informatik.uni-tuebingen.de/trydsh/
  22. http://www.reddit.com/r/haskell/comments/m9s37/trydsh_test_your_code/
  23. https://github.com/jamwt/haskell-scalable-server
  24. http://www.reddit.com/r/haskell/comments/m4cz0/scalableserver01_providing_an_easy_api_for/
  25. http://www.reddit.com/r/programming/comments/m4rbs/python_3_implementation_in_haskell/
  26. http://www.reddit.com/r/haskell/comments/m5l1u/python_3_implementation_in_haskell_xpost_from/
  27. http://www.reddit.com/r/haskell/comments/m9975/lets_derive_eq_reflexivity_not_guaranteed/
  28. http://www.reddit.com/r/haskell/comments/m9975/lets_derive_eq_reflexivity_not_guaranteed/
  29. http://www.reddit.com/r/haskell/comments/m9s9p/haskell_and_highperformance_computing_hpc/
  30. http://www.reddit.com/r/haskell/comments/m9s9p/haskell_and_highperformance_computing_hpc/
  31. http://stackoverflow.com/questions/8066850/why-doesnt-haskells-prelude-read-return-a-maybe
  32. http://stackoverflow.com/questions/8106764/choosing-between-a-class-and-a-record
  33. http://stackoverflow.com/questions/8032228/function-using-foldr-is-too-eager
  34. http://stackoverflow.com/questions/8092787/odd-results-from-monad-transformer-benchmark-a-bug
  35. http://stackoverflow.com/questions/8101067/binary-instance-for-an-existential
  36. http://stackoverflow.com/questions/8084832/ghc-install-without-root
  37. http://stackoverflow.com/questions/8099349/fixed-point-combinator-in-haskell
  38. http://stackoverflow.com/questions/8052177/whats-the-best-way-to-write-facebook-apps-in-haskell
  39. http://stackoverflow.com/questions/8059057/creating-a-list-by-cumulatively-adding-elements-of-another-list-haskell
  40. http://stackoverflow.com/questions/8067368/ghci-environment-dump