[DEV] add v1.66.0

libs/python/example/quickstart/Jamfile

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+# Copyright Stefan Seefeld 2016.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+import python ;
+import testing ;
+
+project quickstart
+  : requirements
+    <location>.
+    ;
+
+# Declare a Python extension called hello.
+python-extension extending : extending.cpp ;
+
+# Declare an executable called embedding that embeds Python
+exe embedding : embedding.cpp /python//python ;
+
+# Declare a test of the extension module
+testing.make-test run-pyd : extending test_extending.py : : test_ext ;
+
+# Declare a test of the embedding application
+testing.run embedding embedding.cpp
+  :              # any ordinary arguments
+  : script.py    # any arguments that should be treated as relative paths
+  :              # requirements
+  : test_embed ; # name of test
+
+# Create a "test" target that runs all the tests
+alias test : test_ext test_embed ;
+
+# make sure the tests don't run by default
+explicit test_ext test_embed test ;
+

libs/python/example/quickstart/embedding.cpp

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+// Copyright Stefan Seefeld 2005.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python.hpp>
+
+#include <boost/detail/lightweight_test.hpp>
+#include <iostream>
+
+namespace python = boost::python;
+
+// An abstract base class
+class Base : public boost::noncopyable
+{
+public:
+  virtual ~Base() {};
+  virtual std::string hello() = 0;
+};
+
+// C++ derived class
+class CppDerived : public Base
+{
+public:
+  virtual ~CppDerived() {}
+  virtual std::string hello() { return "Hello from C++!";}
+};
+
+// Familiar Boost.Python wrapper class for Base
+struct BaseWrap : Base, python::wrapper<Base>
+{
+  virtual std::string hello() 
+  {
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
+    // workaround for VC++ 6.x or 7.0, see
+    // http://boost.org/libs/python/doc/tutorial/doc/html/python/exposing.html#python.class_virtual_functions
+    return python::call<std::string>(this->get_override("hello").ptr());
+#else
+    return this->get_override("hello")();
+#endif
+  }
+};
+
+// Pack the Base class wrapper into a module
+BOOST_PYTHON_MODULE(embedded_hello)
+{
+  python::class_<BaseWrap, boost::noncopyable> base("Base");
+}
+
+
+void exec_test()
+{
+    std::cout << "registering extension module embedded_hello..." << std::endl;
+    
+  // Register the module with the interpreter
+  if (PyImport_AppendInittab("embedded_hello", initembedded_hello) == -1)
+    throw std::runtime_error("Failed to add embedded_hello to the interpreter's "
+                 "builtin modules");
+
+  std::cout << "defining Python class derived from Base..." << std::endl;
+  
+  // Retrieve the main module
+  python::object main = python::import("__main__");
+  
+  // Retrieve the main module's namespace
+  python::object global(main.attr("__dict__"));
+
+  // Define the derived class in Python.
+  python::object result = python::exec(
+    "from embedded_hello import *        \n"
+    "class PythonDerived(Base):          \n"
+    "    def hello(self):                \n"
+    "        return 'Hello from Python!' \n",
+    global, global);
+
+  python::object PythonDerived = global["PythonDerived"];
+
+  // Creating and using instances of the C++ class is as easy as always.
+  CppDerived cpp;
+  BOOST_TEST(cpp.hello() == "Hello from C++!");
+
+  std::cout << "testing derived class from C++..." << std::endl;
+  
+  // But now creating and using instances of the Python class is almost
+  // as easy!
+  python::object py_base = PythonDerived();
+  Base& py = python::extract<Base&>(py_base) BOOST_EXTRACT_WORKAROUND;
+
+  // Make sure the right 'hello' method is called.
+  BOOST_TEST(py.hello() == "Hello from Python!");
+
+  std::cout << "success!" << std::endl;
+}
+
+void exec_file_test(std::string const &script)
+{
+    std::cout << "running file " << script << "..." << std::endl;
+    
+    // Run a python script in an empty environment.
+    python::dict global;
+    python::object result = python::exec_file(script.c_str(), global, global);
+
+    // Extract an object the script stored in the global dictionary.
+    BOOST_TEST(python::extract<int>(global["number"]) ==  42);
+    
+    std::cout << "success!" << std::endl;
+}
+
+void exec_test_error()
+{
+    std::cout << "intentionally causing a python exception..." << std::endl;
+    
+    // Execute a statement that raises a python exception.
+    python::dict global;
+    python::object result = python::exec("print unknown \n", global, global);
+
+    std::cout << "Oops! This statement should be skipped due to an exception" << std::endl;
+}
+
+int main(int argc, char **argv)
+{
+  BOOST_TEST(argc == 2);
+  std::string script = argv[1];
+  // Initialize the interpreter
+  Py_Initialize();
+
+  bool error_expected = false;
+  
+  if (
+      python::handle_exception(exec_test)
+      || python::handle_exception(boost::bind(exec_file_test, script))
+      || (
+          (error_expected = true)
+          && python::handle_exception(exec_test_error)
+      )
+
+  )
+  {
+    if (PyErr_Occurred())
+    {
+        if (!error_expected)
+            BOOST_ERROR("Python Error detected");
+        PyErr_Print();
+    }
+    else
+    {
+        BOOST_ERROR("A C++ exception was thrown  for which "
+                    "there was no exception translator registered.");
+    }
+  }
+  
+  // Boost.Python doesn't support Py_Finalize yet, so don't call it!
+  return boost::report_errors();
+}

libs/python/example/quickstart/extending.cpp

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+// Copyright Ralf W. Grosse-Kunstleve 2002-2004. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python/class.hpp>
+#include <boost/python/module.hpp>
+#include <boost/python/def.hpp>
+#include <iostream>
+#include <string>
+
+namespace { // Avoid cluttering the global namespace.
+
+  // A friendly class.
+  class hello
+  {
+    public:
+      hello(const std::string& country) { this->country = country; }
+      std::string greet() const { return "Hello from " + country; }
+    private:
+      std::string country;
+  };
+
+  // A function taking a hello object as an argument.
+  std::string invite(const hello& w) {
+    return w.greet() + "! Please come soon!";
+  }
+}
+
+BOOST_PYTHON_MODULE(extending)
+{
+    using namespace boost::python;
+    class_<hello>("hello", init<std::string>())
+        // Add a regular member function.
+        .def("greet", &hello::greet)
+        // Add invite() as a member of hello!
+        .def("invite", invite)
+        ;
+    
+    // Also add invite() as a regular function to the module.
+    def("invite", invite);
+}

libs/python/example/quickstart/script.py

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+#! /usr/bin/env python
+# Copyright Stefan Seefeld 2006. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+print('Hello World !')
+number = 42

libs/python/example/quickstart/test_extending.py

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+#! /usr/bin/env python
+# Copyright Ralf W. Grosse-Kunstleve 2006. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# Using the doctest module here to ensure that the results are as expected.
+r'''>>> from extending import *
+    >>> hi = hello('California')
+    >>> hi.greet()
+    'Hello from California'
+    >>> invite(hi)
+    'Hello from California! Please come soon!'
+    >>> hi.invite()
+    'Hello from California! Please come soon!'
+
+    >>> class wordy(hello):
+    ...     def greet(self):
+    ...         return hello.greet(self) + ', where the weather is fine'
+    ...
+    >>> hi2 = wordy('Florida')
+    >>> hi2.greet()
+    'Hello from Florida, where the weather is fine'
+    >>> invite(hi2)
+    'Hello from Florida! Please come soon!'
+'''
+
+def run(args = None):
+    if args is not None:
+        import sys
+        sys.argv = args
+    import doctest, test_extending
+    return doctest.testmod(test_extending, verbose=True)
+
+if __name__ == '__main__':
+    import sys
+    sys.exit(run()[0])
+