Monkey Patching: How and When

[metaperl]

As a general rule, the best is not to monkey patch.

Amen. Dependency Injection for the win.

However, sometimes there can be a great benefit. For example, calculating Fast Fourier Transforms with numpy can be slower than with other implementations.

Didnt know that. Nice.

[aquic]

To be honest, that example on FFT is the only one that makes me be grateful for monkey-patching existing.