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POHow to reinitialise an embedded Python interpreter?
 

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  1. POHow to reinitialise an embedded Python interpreter?
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    <p>I'm working on embedding Python in our test suite application. The purpose is to use Python to run several tests scripts to collect data and make a report of tests. Multiple test scripts for one test run can create global variables and functions that can be used in the next script. </p> <p>The application also provides extension modules that are imported in the embedded interpreter, and are used to exchange some data with the application.</p> <p>But the user can also make multiple test runs. I don't want to share those globals, imports and the exchanged data between multiple test runs. I have to be sure I restart in a genuine state to control the test environment and get the same results.</p> <p>How should I reinitialise the interpreter?</p> <p>I used Py_Initialize() and Py_Finalize(), but get an exception on the second run when initialising a second time the extension modules I provide to the interpreter. And the documentation <a href="http://docs.python.org/c-api/init.html#Py_Finalize">warns against using it more than once</a>.</p> <p>Using <a href="http://docs.python.org/c-api/init.html#sub-interpreter-support">sub-interpreters</a> seems to have the same caveats with extension modules initialization.</p> <p>I suspect that I'm doing something wrong with the initialisation of my extension modules, but I fear that the same problem happens with 3rd party extension modules.</p> <p>Maybe it's possible to get it to work by launching the interpreter in it's own process, so as to be sure that all the memory is released.</p> <p>By the way, I'm using boost-python for it, that also warns AGAINST using Py_Finalize!</p> <p>Any suggestion?</p> <p>Thanks</p>
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