Format modules

[ghanse]

Changes

This PR introduces Black as a Python code formatter. Type hints and docstrings have been updated for several modules:

• datarange.py
• nrange.py
• daterange.py
• All constraint modules
• All distribution modules

Linked issues

N/A

Requirements

• manually tested
• updated documentation
• updated demos
• updated tests

[ghanse]

This PR is going to be quite large. Any functional changes are in:

• datarange.py
• daterange.py
• nrange.py
• All constraints modules
• All distributions modules

[codecov]

Codecov Report

❌ Patch coverage is 95.37223% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.10%. Comparing base (aae8bde) to head (3e1f5a2).
⚠️ Report is 23 commits behind head on master.

Files with missing lines	Patch %	Lines
dbldatagen/constraints/constraint.py	82.85%	3 Missing and 3 partials ⚠️
dbldatagen/column_generation_spec.py	94.59%	2 Missing ⚠️
dbldatagen/constraints/unique_combinations.py	88.23%	1 Missing and 1 partial ⚠️
dbldatagen/data_generator.py	91.66%	2 Missing ⚠️
...datagen/datasets/multi_table_telephony_provider.py	90.90%	2 Missing ⚠️
dbldatagen/daterange.py	95.65%	2 Missing ⚠️
dbldatagen/nrange.py	97.14%	1 Missing and 1 partial ⚠️
dbldatagen/utils.py	83.33%	1 Missing and 1 partial ⚠️
dbldatagen/column_spec_options.py	90.00%	1 Missing ⚠️
...tagen/datasets/multi_table_sales_order_provider.py	95.65%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #374      +/-   ##
==========================================
- Coverage   92.87%   92.10%   -0.77%     
==========================================
  Files          42       47       +5     
  Lines        3577     4206     +629     
  Branches      631      763     +132     
==========================================
+ Hits         3322     3874     +552     
- Misses        145      186      +41     
- Partials      110      146      +36     

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[Copilot]

Pull request overview

This PR introduces Black as the Python code formatter and applies it across tutorial files, test files, and utility scripts. The changes are purely cosmetic, focusing on consistent formatting without altering functionality.

Key Changes:

• Applied Black formatter to tutorial scripts (1-4) and test files
• Reformatted multi-line function calls, parameter lists, and data structures for improved readability
• Added blank lines between function definitions per PEP 8 guidelines

Reviewed changes

Copilot reviewed 86 out of 87 changed files in this pull request and generated no comments.

File	Description
tutorial/*.py	Reformatted DataGenerator chains and SQL strings with proper line breaks
tests/test_*.py	Applied Black formatting to test methods, parametrize decorators, and assertions
docs/utils/mk_requirements.py	Split long string literals across multiple lines

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[Copilot]

Pull request overview

Copilot reviewed 86 out of 87 changed files in this pull request and generated no new comments.

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[anupkalburgi]

LGTM

[Copilot]

Pull request overview

Copilot reviewed 87 out of 88 changed files in this pull request and generated no new comments.

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