CPMpy/cpmpy
Dec 2024 – Aug 2025
3 Months active
Languages Used
Python
Technical Skills
Code RefactoringConstraint ProgrammingData StructuresError HandlingPython DevelopmentBackend Development
Dimos Tsouros
PROFILE
Dimos Tsouros
Dimos Tsaptsinos contributed to the CPMpy/cpmpy repository by enhancing constraint programming reliability and maintainability through targeted backend development and code refactoring in Python. Over three months, he delivered robust linearization for power and modulo operations, ensuring correct handling of nonlinear expressions and modular arithmetic. He improved input normalization for table constraints, converting numpy arrays to lists to prevent downstream errors, and refined error handling with clearer exception messages. Dimos also enforced strict time limit validation across solver backends and strengthened constraint handling for edge cases, demonstrating depth in solver integration, data structures, and test-driven development to support stable, predictable solver behavior.
Overall Statistics
Feature vs Bugs
20%Features
Repository Contributions
6Total
Bugs
4
Commits
6
Features
1
Lines of code
409
Activity Months3
Your Network
7 people
Work History
August 2025
1 Commits • 1 Features
Aug 1, 2025Concise monthly summary for 2025-08 focused on strengthening core constraint linearization in CPMpy with robust handling of power and modulo operations, plus tests. The work targeted the CPMpy/cpmpy repository and improved solver reliability when encountering nonlinear expressions and modular arithmetic.
1 Commits • 1 Features
Aug 1, 2025Concise monthly summary for 2025-08 focused on strengthening core constraint linearization in CPMpy with robust handling of power and modulo operations, plus tests. The work targeted the CPMpy/cpmpy repository and improved solver reliability when encountering nonlinear expressions and modular arithmetic.
August 2025
April 2025
3 Commits
Apr 1, 2025April 2025 CPMpy/cpmpy monthly summary focused on reliability and cross-solver robustness. Implemented key validations and constraint-handling improvements to drive stability, predictable behavior, and business value across solver backends.
April 2025
3 Commits
Apr 1, 2025April 2025 CPMpy/cpmpy monthly summary focused on reliability and cross-solver robustness. Implemented key validations and constraint-handling improvements to drive stability, predictable behavior, and business value across solver backends.
December 2024
2 Commits
Dec 1, 2024December 2024 (CPMpy/cpmpy): Focused on reliability and developer experience through targeted bug fixes that reduce downstream errors and improve maintainability. Implemented table constraint input normalization to ensure the 'table' argument is always a list, converting numpy arrays to lists to improve compatibility and prevent downstream errors. Refined exception messages and performed code cleanup to remove unused imports, yielding clearer guidance for users and a lighter codebase. These changes enhance runtime stability, ease debugging, and support smoother integration for downstream applications.
2 Commits
Dec 1, 2024December 2024 (CPMpy/cpmpy): Focused on reliability and developer experience through targeted bug fixes that reduce downstream errors and improve maintainability. Implemented table constraint input normalization to ensure the 'table' argument is always a list, converting numpy arrays to lists to improve compatibility and prevent downstream errors. Refined exception messages and performed code cleanup to remove unused imports, yielding clearer guidance for users and a lighter codebase. These changes enhance runtime stability, ease debugging, and support smoother integration for downstream applications.
December 2024
Activity
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Quality Metrics
Correctness85.0%
Maintainability90.0%
Architecture80.0%
Performance78.4%
AI Usage23.4%
Skills & Technologies
Programming Languages
Python
Technical Skills
Backend DevelopmentCode RefactoringConstraint ProgrammingData StructuresError HandlingMathematical OperationsPython DevelopmentSoftware DevelopmentSolver IntegrationTesting
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