Brownie compares the hashes of each contract source with the hashes of the previously built versions each time the compiler runs.
It has strong debugging tools, bespoke error strings, and tracebacks in the style of Python. It offers an integrated console for quick project interactions. A contract is not recompiled if it has not changed. Use brownie compile all to force recompilation of the whole project. Brownie raises an exception with details on why the compilation failed if one or more contracts are unable to compile.
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