fix: batch-3 - relative import fix and ML_snippets __init__ rename

[saurabhhhcodes]

Batch 3 Bug Fixes

Bug 1: Relative import in complex_number.py

• File: pysnippets/Complex_number/complex_number.py
• Issue: Missing . prefix in from exceptions import DivisionByZeroError — should be from .exceptions import DivisionByZeroError
• Impact: ImportError when module is used as a package

Bug 2: ML_snippets init.py filename

• File: pysnippets/ML_snippets/_init__.py → __init__.py
• Issue: File was named _init__.py (single underscore) instead of __init__.py (double underscore)
• Impact: Directory not recognized as a Python package

Summary by CodeRabbit

• Bug Fixes
  • Fixed package imports for complex number operations, improving reliability when used as part of the installed package.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 11e11901-8950-4c28-999d-72f3ca86db96

📥 Commits

Reviewing files that changed from the base of the PR and between 9f6eda4 and 1fd9ee6.

📒 Files selected for processing (2)

• pysnippets/Complex_number/complex_number.py
• pysnippets/ML_snippets/__init__.py

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📝 Walkthrough

Walkthrough

The ComplexNumber module changes its DivisionByZeroError import from an absolute module path to a package-relative path. No other logic or public declarations are modified.

Changes

Complex number import update

Layer / File(s)	Summary
Update exception import pysnippets/Complex_number/complex_number.py	DivisionByZeroError is imported from the package-relative exceptions module.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main changes: a relative import fix and the ML_snippets package init rename.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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