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...gt; > pointer callback. But it is that much more glue code to figure out how > > to check for a python global variable, compared to the glue code we > > already have for calling a python function. > > The extra glue code is (without error handling): > > PyObject *d = PyModule_GetDict(PyObject *module); > PyObject *v = PyDict_GetItemString(d, "API_VERSION"); > long api_version = PyLong_AsLong(v); Or simpler (with error handling): PyObject *v = PyObject_GetAttrString(m, "API_VERSION"); if (v == NULL) return 1; long value =...

On 11/22/19 3:20 PM, Nir Soffer wrote: >>> +# There are several variants of the API. nbdkit will call this >>> +# function first to determine which one you want to use. This is the >>> +# latest version at the time this example was written. >>> +def api_version(): >>> + return 2 >> >> Matches the C counterpart of #define

...constant rather than a function > pointer callback. But it is that much more glue code to figure out how > to check for a python global variable, compared to the glue code we > already have for calling a python function. The extra glue code is (without error handling): PyObject *d = PyModule_GetDict(PyObject *module); PyObject *v = PyDict_GetItemString(d, "API_VERSION"); long api_version = PyLong_AsLong(v);