PyCUTEst gives Python users access to the full CUTEst collection of optimization test problems via a simple interface for compiling problems (that automatically generates a C interface to the underlying Fortran package). The main benefits of the PyCUTEst package are: Enabling the use of the CUTEst test collection by the sizeable community of Python optimization software developers and users. Allowing simple benchmarking of optimization algorithms and software in Python against a widely used standard collection of test problems. Our aim is for PyCUTEst to make it easier for both optimization users and software developers to develop and test new and existing algorithms and software in Python