pip(deps): bump optuna from 2.8.0 to 2.9.0

[dependabot]

Bumps optuna from 2.8.0 to 2.9.0.

Release notes

Sourced from optuna's releases.

v2.9.0

This is the release note of v2.9.0.

Help us create the next version of Optuna! Please take a few minutes to fill in this survey, and let us know how you use Optuna now and what improvements you'd like. https://forms.gle/TtJuuaqFqtjmbCP67

Highlights

Ask-and-Tell CLI: Optuna from the Command Line

The built-in CLI which you can use to upgrade storages or check the installed version with optuna --version, now provides experimental subcommands for the Ask-and-Tell interface. It is now possible to optimize using Optuna entirely from the CLI, without writing a single line of Python.

Ask with optuna ask

Ask for parameters using optuna ask, specifying the search space, storage, study name, sampler and optimization direction. The parameters and the associated trial number can be output as either JSON or YAML.

The following is an example outputting and piping the results to a YAML file.

$ optuna ask --storage sqlite:///mystorage.db \
    --study-name mystudy \
    --sampler TPESampler \
    --sampler-kwargs '{"multivariate": true}' \
    --search-space '{"x": {"name": "UniformDistribution", "attributes": {"low": 0.0, "high": 1.0}}, "y": {"name": "CategoricalDistribution", "attributes": {"choices": ["foo", "bar"]}}}' \
    --direction minimize \
    --out yaml \
    > out.yaml
[I 2021-07-30 15:56:50,774] A new study created in RDB with name: mystudy
[I 2021-07-30 15:56:50,808] Asked trial 0 with parameters {'x': 0.21492964898919975, 'y': 'foo'} in study 'mystudy' and storage 'sqlite:///mystorage.db'.
$ cat out.yaml
trial:
number: 0
params:
x: 0.21492964898919975
y: foo

Specify multiple whitespace separated directions for multi-objective optimization.

Tell with optuna tell

After computing the objective value based on the output of ask, you can report the result back using optuna tell and it will be stored in the study.

$ optuna tell --storage sqlite:///mystorage.db \
    --study-name mystudy \
    --trial-number 0 \
    --values 1.0
[I 2021-07-30 16:01:13,039] Told trial 0 with values [1.0] and state TrialState.COMPLETE in study 'mystudy' and storage 'sqlite:///mystorage.db'.

... (truncated)

Commits

• da23618 Merge pull request #2828 from hvy/bump-to-v2.9.0
• 3146812 Bump to v2.9.0
• 8ee931a Merge pull request #2816 from not522/tpe-speedup
• 85efebd Rename config_vals -> config_values
• f1cf51d Merge pull request #2811 from hvy/storage-fail-with-callback
• 72a76bf Merge pull request #2823 from hvy/cliff-deferred-help
• 27e1e2c Merge pull request #2817 from hvy/cli-ask-tell
• 35d4855 Explicit PyYAML dependency
• f48ff67 Cosmetic for consistency
• fe7f152 Document arguments for CLI ask and tell
• Additional commits viewable in compare view

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[coveralls]

Pull Request Test Coverage Report for Build 1089465448

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 93.006%

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Totals
Change from base Build 1079865999:	0.2%
Covered Lines:	1290
Relevant Lines:	1387

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💛 - Coveralls

[ncilfone]

@dependabot rebase

[ncilfone]

@dependabot rebase