Don’t write namespace using in a header file or before and #include¶
“Namespace using” is for your convenience, not for you to inflict on others.
Never write a using declaration or a using directive before an #include directive.
The only reason to use using namespace is to reduce typing. It, unfortunately,
reduces readability. I would recommend not using it ever.
To save typing prefer :
Rename the namespace to reduce typing, e.g. instead of
using namespace boost::python;prefernamespace bp = boost::python;. This makes it easier for someone reading your code to see where things come from.Fully qualify the function or class, e.g.
using boost::python::class_;
Both are a little extra typing, but it makes it much easier for others to understand and debug your code.
