Resolves #33 — Refactors the monolithic networkdiagram.py into a structured, modular Python package architecture in preparation for the v1.0.0 PyPI release.

[Shiva210Jyoti]

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Resolves #33

Summary

Refactors the monolithic networkdiagram.py into a professional, modular Python package architecture ahead of the v1.0.0 PyPI release. This is a pure structural refactor — no logic, math, or Matplotlib parameters were touched.

Package Structure

networkdiagram/
├── __init__.py                          # Re-exports all public classes
├── core/
│   ├── node.py                          # Node class
│   ├── cpm.py                           # CriticalPathMethod class
│   └── pert.py                          # Stub for future PERTMethod
├── visualization/
│   ├── network_plot.py                  # display_network() + get_hierarchical_layout()
│   └── gantt_chart.py                   # Stub for future Gantt chart
└── utils/
    └── validators.py                    # Stub for future validators

Backward Compatibility

from networkdiagram import CriticalPathMethod works identically — zero breaking changes.

Testing

pytest tests/ — 1 passed, 0 failures after full refactor.

Notes

Stub modules are intentional placeholders for PERTMethod, generate_gantt_chart(), and validators — the original monolithic file had none of these implemented.

[Shiva210Jyoti]

Hey @kathan-majithia, the PR is ready for your review! All existing tests pass. Please let me know if any changes are needed.

[Shiva210Jyoti]

@kathan-majithia Merge conflicts resolved — integrated your latest validation, cycle detection, and Gantt chart additions into the new modular structure. All 6 tests passing. Ready for review.

[kathan-majithia]

Hi @Shiva210Jyoti , amazing work tackling this massive refactor!

As expected with a major structural update, we hit a merge conflict.

To get this ready for merging, you will need to sync your branch with main and resolve the conflicts locally.

[Shiva210Jyoti]

@kathan-majithia Synced with latest upstream main — integrated the Time-Cost Trade-off (Crashing) feature into the modular structure. All 6 tests passing. Ready for review.

[Shiva210Jyoti]

Hi @kathan-majithia ,Kindly review the PR when u get time. Thank you.

[kathan-majithia]

Hi @Shiva210Jyoti , sorry to keep you waiting. That was because there were ongoing PR's to be merged beforecoming to your PR. Now that I have merged major PR's and not planning to merge anything new, you are requested to check for any other latest change in the project and let me review the final version.

Thank you!