Repository commit

a0b0f41

Python version (python --version)

Python 3.10.7

Dependencies version (pip freeze)

Not applicable - this is a logical bug, not dependency-related

Expected behavior

Consistent behavior across all methods when handling missing values:

• Either ALL methods should raise exceptions for invalid inputs
• Or ALL methods should return consistent sentinel values
• The behavior should be clearly documented
• No silent failures mixed with exceptions

Actual behavior

Inconsistent behavior:

1. compress(80) returns-1 (silent failure)
2. coordinate_map[80] raisesKeyError (exception)
3. decompress(5) returns-1 (silent failure)

This mixed behavior can cause hard-to-debug issues.