accelerator-toolbox 0.0.2

Accelerator Toolbox

pyAT is a Python interface to the pass methods defined in Accelerator Toolbox, implemented by compiling the C code used in the AT ‘integrators’ plus a Python extension.

It supports Python 2.7 and 3.3 to 3.6.

Installation preparation (Windows)

Download Microsoft Visual C++ Compiler for Python 2.7 (here), and use the Visual C++ Command Prompt of the correct architecture to build pyat.

For newer versions of Python you need the appropriate version of Visual C++.

Installation (all platforms)

All the binaries should be built when building the Python extension.

It is easiest to do this using a virtualenv, inside pyat:

• virtualenv --no-site-packages venv

• source venv/bin/activate # or venv\Scripts\activate on Windows

• pip install -r requirements.txt

• python setup.py develop

Finally, you should be able to run the tests:

• py.test test

Comparing results with Matlab

There is a second set of tests that require a Matlab licence and allows comparing results directly with a Matlab session. See test_matlab/README for information.

Debugging

Print statements in the C code will work once the integrators are recompiled. To force recompilation, remove the build directory:

• rm -rf build

Any changes to .py files are automatically reinstalled in the build, but to ensure any changes to .c files are reinstalled rerun:

• python setup.py develop

If you get strange behaviour even after running setup.py develop again, then running the following, inside pyat, should fix it:

• rm -rf build

• find at -name "*.pyc" -exec rm '{}' \;

• find at -name "*.so" -exec rm '{}' \;

• python setup.py develop

N.B. setup.py develop needs to be run with the same version of Python (and numpy) that you are using to run pyAT.