python-cysignals/README.md

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# python-cysignals
When writing [Cython](http://cython.org/) code, special care must be taken to
ensure that the code can be interrupted with `CTRL-C`. Since Cython optimizes
for speed, Cython normally does not check for interrupts. For example, code
like the following cannot be interrupted in Cython:
```
while True:
pass
```
The [cysignals](https://github.com/sagemath/cysignals) package provides
mechanisms to handle interrupts (and other signals and errors) in Cython code.