Sacred

++++++++++++++++++
Major release with several breaking changes.

* API change: Dropped support for Python 2
* API change: Gathering of git information gathering is now enabled by default 595
* API change: Switched constructor from Observer.create(...) to Observer(...) for all observers.
* API change: Changed the interface for collecting custom host-information 569
* API change: Changed interface for defining CLI options. 572
* Feature: Added new S3 file observer 542
* Feature: added `started_text` option to TelegramObserver 494
* Feature: added copy/deepcopy support to read-only containers 500
* Bugfix: FileStorage Observer is more reliable under parallel execution 503
* Bugfix: FileStorageObserver now raises an error when an artifact would overwrite an important file 647
* Bugfix: fixed inconsistent config nesting behavior 409 505
* Bugfix: Several fixes for tensorflow integration
* Bugfix: Fixed crash due to missing brand-key on some machines 512
* Internal: Migrated CI server to Azure
* Internal: Added pre-commit hooks for pep 8 checks and python black for automated code formatting
* Internal: Started using pathlib.Path instead of os.path in many places

++++++++++++++++++
Last release to support Python 2.7.

* Feature: major improvements to error reporting (thanks thequilo)
* Feature: added print_named_configs command
* Feature: added option to add metadata to artifacts (thanks jarnoRFB)
* Feature: content type detection for artifacts (thanks jarnoRFB)
* Feature: automatic seeding for pytorch (thanks srossi93)
* Feature: add proxy support to telegram observer (thanks brickerino)
* Feature: made MongoObserver fail dump dir configurable (thanks jarnoRFB)
* Feature: added queue-based observer that better handles unreliable connections (thanks jarnoRFB)
* Bugfix: some fixes to stdout capturing
* Bugfix: FileStorageObserver now creates directories only when starting a run (329; thanks thomasjpfan)
* Bugfix: Fixed config_hooks (326; thanks thomasjpfan)
* Bugfix: Fixed a crash when overwriting non-dict config entries with dicts (325; thanks thomasjpfan)
* Bugfix: fixed problem with running in conda environment (341)
* Bugfix: numpy aware config change detection (344)
* Bugfix: allow dependencies to be compiled libraries (thanks jnphilipp)
* Bugfix: output colorization now works on 256 and 16 color terminals (thanks bosr)
* Bugfix: fixed problem with tinydb observer logging (327; thanks michalgregor)
* Bugfix: ignore folders that have the same name as a named_config (thanks boeddeker)
* Bugfix: setup no longer overwrites pre-configured root logger (thanks thequilo)
* Bugfix: compatibility with tensorflow 2.0 (thanks tarik, gabrieldemarmiesse)
* Bugfix: fixed exception when no tee is available for stdout capturing (thanks greg-farquhar)
* Bugfix: fixed concurrency issue with FileStorageObserver (thanks dekuenstle)

++++++++++++++++++
* Bugfix: fixed problem with postgres backend of SQLObserver (thanks bensternlieb)
* Bugfix: fixed a problem with the interaction of ingredients and named configs
* Feature: added metrics logging to the FileStorageObserver (thanks ummavi)

++++++++++++++++++
* Feature: support custom experiment base directory (thanks anibali)
* Feature: added option to pass existing MongoClient to MongoObserver (thanks rueberger)
* Feature: allow setting the config docstring from named configs
* Feature: added py-cpuinfo as fallback for gathering CPU information (thanks serv-inc)
* Feature: added support for _log argument in config function
* Bugfix: stacktrace filtering now correctly handles chained exceptions (thanks kamo-naoyuki)
* Bugfix: resolved issue with stdout capturing sometimes loosing the last few lines
* Bugfix: fixed the overwrite option of MongoObserver
* Bugfix: fixed a problem with the heartbeat sometimes not ending
* Bugfix: fixed an error with running in interactive mode
* Bugfix: added a check for non-unique ingredient paths (thanks boeddeker)
* Bugfix: fixed several problems with utf-8 decoding (thanks LukasDrude, wjp)
* Bugfix: fixed nesting structure of _config (thanks boeddeker)
* Bugfix: fixed crash when using git integration with empty repository (thanks ramon-oliveira)
* Bugfix: fixed a crash with first run using sqlite backend
* Bugfix: fixed several problem with the tests (thanks thomasjpfan)
* Bugfix: fixed racing condition in FileStorageObserver (thanks boeddeker)
* Bugfix: fixed problem with overwriting named configs of ingredients (thanks pimdh)
* Bugfix: removed deprecated call to inspect.getargspec()
* Bugfix: fixed problem with empty dictionaries disappearing from config updates and named configs (thanks TomVeniat)
* Bugfix: fixed problem with commandline parsing when program name contained spaces
* Bugfix: loglevl option is now taken into account for config related warnings
* Bugfix: properly handle numpy types in metrics logging

++++++++++++++++++
* API Change: added host_info to queued_event
* Feature: improved and configurable dependency discovery system
* Feature: improved and configurable source-file discovery system
* Feature: better error messages for missing or misspelled commands
* Feature: -m flag now supports passing an id for a run to overwrite
* Feature: allow captured functions to be called outside of a run (thanks berleon)
* Bugfix: fixed issue with telegram imports (thanks millawell)

++++++++++++++++++
* Refactor: lazy importing of many optional dependencies
* Feature: added metrics API for adding live monitoring information to the MongoDB
* Feature: added integration with tensorflow for automatic capturing of LogWriter paths
* Feature: set seed of tensorflow if it is imported
* Feature: named_configs can now affect the config of ingredients
* Bugfix: failed runs now return with exit code 1 by default
* Bugfix: fixed a problem with UTF-8 symbols in stdout
* Bugfix: fixed a threading issue with the SQLObserver
* Bugfix: fixed a problem with consecutive ids in the SQLObserver
* Bugfix: heartbeat events now also serialize the intermediate results
* Bugfix: reapeatedly calling run from python with an option for adding an
observer, no longer duplicates observers
* Bugfix: fixed a problem where **kwargs of captured functions might be modified
* Bugfix: fixed an encoding problem with the FileStorageObserver
* Bugfix: fixed an issue where determining the version of some packages would crash
* Bugfix: fixed handling of relative filepaths in the SQLObserver and the TinyDBObserver