mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-24 06:05:10 +00:00
443ab5946b
This commit also adds `doc()` to `object_api` as a shortcut for the
`attr("__doc__")` accessor.
The module macro changes from:
```c++
PYBIND11_PLUGIN(example) {
pybind11::module m("example", "pybind11 example plugin");
m.def("add", [](int a, int b) { return a + b; });
return m.ptr();
}
```
to:
```c++
PYBIND11_MODULE(example, m) {
m.doc() = "pybind11 example plugin";
m.def("add", [](int a, int b) { return a + b; });
}
```
Using the old macro results in a deprecation warning. The warning
actually points to the `pybind11_init` function (since attributes
don't bind to macros), but the message should be quite clear:
"PYBIND11_PLUGIN is deprecated, use PYBIND11_MODULE".
89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
import random
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import os
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import time
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import datetime as dt
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nfns = 4 # Functions per class
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nargs = 4 # Arguments per function
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def generate_dummy_code_pybind11(nclasses=10):
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decl = ""
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bindings = ""
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for cl in range(nclasses):
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decl += "class cl%03i;\n" % cl
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decl += '\n'
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for cl in range(nclasses):
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decl += "class cl%03i {\n" % cl
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decl += "public:\n"
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bindings += ' py::class_<cl%03i>(m, "cl%03i")\n' % (cl, cl)
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for fn in range(nfns):
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ret = random.randint(0, nclasses - 1)
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params = [random.randint(0, nclasses - 1) for i in range(nargs)]
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decl += " cl%03i *fn_%03i(" % (ret, fn)
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decl += ", ".join("cl%03i *" % p for p in params)
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decl += ");\n"
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bindings += ' .def("fn_%03i", &cl%03i::fn_%03i)\n' % \
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(fn, cl, fn)
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decl += "};\n\n"
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bindings += ' ;\n'
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result = "#include <pybind11/pybind11.h>\n\n"
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result += "namespace py = pybind11;\n\n"
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result += decl + '\n'
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result += "PYBIND11_MODULE(example, m) {\n"
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result += bindings
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result += "}"
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return result
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def generate_dummy_code_boost(nclasses=10):
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decl = ""
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bindings = ""
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for cl in range(nclasses):
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decl += "class cl%03i;\n" % cl
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decl += '\n'
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for cl in range(nclasses):
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decl += "class cl%03i {\n" % cl
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decl += "public:\n"
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bindings += ' py::class_<cl%03i>("cl%03i")\n' % (cl, cl)
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for fn in range(nfns):
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ret = random.randint(0, nclasses - 1)
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params = [random.randint(0, nclasses - 1) for i in range(nargs)]
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decl += " cl%03i *fn_%03i(" % (ret, fn)
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decl += ", ".join("cl%03i *" % p for p in params)
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decl += ");\n"
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bindings += ' .def("fn_%03i", &cl%03i::fn_%03i, py::return_value_policy<py::manage_new_object>())\n' % \
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(fn, cl, fn)
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decl += "};\n\n"
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bindings += ' ;\n'
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result = "#include <boost/python.hpp>\n\n"
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result += "namespace py = boost::python;\n\n"
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result += decl + '\n'
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result += "BOOST_PYTHON_MODULE(example) {\n"
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result += bindings
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result += "}"
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return result
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for codegen in [generate_dummy_code_pybind11, generate_dummy_code_boost]:
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print ("{")
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for i in range(0, 10):
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nclasses = 2 ** i
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with open("test.cpp", "w") as f:
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f.write(codegen(nclasses))
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n1 = dt.datetime.now()
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os.system("g++ -Os -shared -rdynamic -undefined dynamic_lookup "
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"-fvisibility=hidden -std=c++14 test.cpp -I include "
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"-I /System/Library/Frameworks/Python.framework/Headers -o test.so")
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n2 = dt.datetime.now()
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elapsed = (n2 - n1).total_seconds()
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size = os.stat('test.so').st_size
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print(" {%i, %f, %i}," % (nclasses * nfns, elapsed, size))
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print ("}")
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