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My personal library collecting some useful snippets.

Project description

About

This is my personal collection of snippets that I use in multiple projects. Each one feels a bit to small to merit it’s own library.

So what does it include?

  • memoize decorator (caching)
  • a storage class wrapping a dict.
  • unittest assert functions.
  • Functions for handling large JSON documents.
  • list_dir(path) -> (dirnames, filenames)
  • PID file locking
  • A synchronization decorator

Feedback and getting involved

Send feedback and bug reports by email to hcs at furuvik dot net.

News

2.0

Release date: 2015-09-14

  • Now only supports Python 3.4
  • Improved thread safety for Lock
  • Bugfix for file handling i daemon
  • Code cleanup and some more tests

1.5

Release date: 2014-02-11

  • Added support to path.watch_files_callback for controlled shutdown
  • Lock, improved exception handling for edge case.

1.4

Release date: 2013-11-19

  • Fix for daemon, started even if it already was started.

1.4rc5

Release date: 2013-04-16

  • Fix for daemon sigterm handler

1.4rc4

Release date: 2013-04-15

  • Added logging to Daemon

1.4rc3

Release date: 2013-04-11

  • fixed bug relating to daemon handle sigterm
  • Added option to to force recalc of cached value for memoized call

1.4rc2

Release date: 2013-03-21

  • Added unicode support to eq_str

1.4rc1

Release date: 2012-11-16

  • Compatible with python 2.7 and 3.3
  • Fixed problem in Lock, timeouts where not used when other thread in same process had the lock.

1.3

Release date: 2012-11-10

No changes since 1.3rc6

1.3rc6

Release date: 2012–

  • Storage: added storagify and unstoragify (to/from json style data structure)

1.3rc5

Release date: 2011-12-19

  • lock: Improved exception messages (added locking pid).
  • lock: Added some debug logging.

1.3rc4

Release date: 2011-09-13

  • Storage: Added generic support for key normalization.

1.3rc3

Release date: 2011-09-06

  • Storage: Added support for running case_insensitive.
  • Storage: Added support for default_factory.

1.3rc2

Release date: 2011-08-25

  • Storage: Minor fixes
  • daemon: A new module for creating a UNIX daemon.
  • lock: Added the option to steal a lock.

1.3rc1

Release date: 2011-07-11

  • PEP8 compliant
  • Better test coverage
  • added IDLock class to lock module
  • Memoize optimization
  • path.watch_file

1.3a9

Release date: 2011-05-31

  • Memoize: bugfixes

1.3a8

Release date: 2011-05-17

  • ItemStore: fixed bugs in rename and move

1.3a7

Release date: 2011-04-26

  • Memoize: Added support for instance methods

1.3a6

Release date: 2011-04-11

  • Added timeout to lockfile

1.3a5

Release date: 2011-04-06

  • Added locking to itemstore
  • Added a file change watcher
  • Some bugfixes
  • PEP8 cleanup

1.3a4

Release date: 2011-02-11

  • Optimized Store.__contains__
  • memoized functions can now be recursive

1.3a3

  • 1.3 will only support Python 2.6 and 2.7
  • Testing using py.test instead of nose
  • added hcs_utils.path.walkfiles() recursive file generator
  • hcs_utils.itemstore Kind of on disk object/file/directory store
  • some smaller functionality
  • bunch of fixes

1.2

Release date: 2011-01-07

No changes since 1.2rc5

1.2.rc5

Release date: 2010-11-30

  • unittest.eq_json, sorted output so that it can be used with dicts.
  • unittest switched place on ndiff arguments

1.2.rc4

Release date: 2010-06-15

  • Dropped support for Python 2.5
  • Added hcs_utils.collections.ListBuilder, a nice way to manually build lists.
  • Added hcs_utils.lock.Lock, Interprocess locking using a PID symlink.
  • Added hcs_utils.path.scan_for_new_files()
  • Added hcs_utils.path.tempdir context.
  • Added hcs_utils.storage.Storage.__contains__ and __iter__
  • Added hcs_utils.storage.json* Storage vs. json helpers
  • Added hcs_utils.threading.synchronization decorator.
  • Memoize is now thread safe.
  • hcs_utils.path.list_dir now returns a namedtuple

1.1

Release date: 2010-04-22

  • Fixed unpickeling of Storage objects.

1.0

Release date: 2010-04-18

  • Initial release

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