/// <summary>
/// ImportAll Method
/// </summary>
/// <remarks>
/// The 'import * from ..' statement in Python.
/// Import all content of a scope/module of given name into the scope, scope will be looked up first.
/// </remarks>
public void ImportAll(string name)
{
PyScope scope;
Manager.TryGet(name, out scope);
if (scope != null)
{
ImportAll(scope);
return;
}
else
{
var module = PyModule.Import(name);
ImportAll(module);
}
}
public PythonException()
{
IntPtr gs = PythonEngine.AcquireLock();
Runtime.PyErr_Fetch(out _pyType, out _pyValue, out _pyTB);
if (_pyType != IntPtr.Zero && _pyValue != IntPtr.Zero)
{
string type;
string message;
Runtime.XIncref(_pyType);
using (var pyType = new PyObject(_pyType))
using (PyObject pyTypeName = pyType.GetAttr("__name__"))
{
type = pyTypeName.ToString();
}
_pythonTypeName = type;
// TODO: If pyValue has a __cause__ attribute, then we could set this.InnerException to the equivalent managed exception.
Runtime.XIncref(_pyValue);
using (var pyValue = new PyObject(_pyValue))
{
message = pyValue.ToString();
}
_message = type + " : " + message;
}
if (_pyTB != IntPtr.Zero)
{
using var tb_module = PyModule.Import("traceback");
Runtime.XIncref(_pyTB);
using var pyTB = new PyObject(_pyTB);
using var tbList = tb_module.InvokeMethod("format_tb", pyTB);
var sb = new StringBuilder();
// Reverse Python's traceback list to match the order used in C#
// stacktraces
foreach (var line in tbList.Reverse())
{
sb.Append(line.ToString());
}
_tb = sb.ToString();
}
PythonEngine.ReleaseLock(gs);
}
/// <summary>
/// Formats this PythonException object into a message as would be printed
/// out via the Python console. See traceback.format_exception
/// </summary>
public string Format()
{
string res;
IntPtr gs = PythonEngine.AcquireLock();
try
{
if (_pyTB != IntPtr.Zero && _pyType != IntPtr.Zero && _pyValue != IntPtr.Zero)
{
IntPtr tb = _pyTB;
IntPtr type = _pyType;
IntPtr value = _pyValue;
Runtime.XIncref(type);
Runtime.XIncref(value);
Runtime.XIncref(tb);
Runtime.PyErr_NormalizeException(ref type, ref value, ref tb);
using (PyObject pyType = new PyObject(type))
using (PyObject pyValue = new PyObject(value))
using (PyObject pyTB = new PyObject(tb))
using (PyObject tb_mod = PyModule.Import("traceback"))
{
var buffer = new StringBuilder();
var values = tb_mod.InvokeMethod("format_exception", pyType, pyValue, pyTB);
foreach (PyObject val in values)
{
buffer.Append(val.ToString());
}
res = buffer.ToString();
}
}
else
{
res = StackTrace;
}
}
finally
{
PythonEngine.ReleaseLock(gs);
}
return(res);
}
#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
/// <summary>
/// Initialization performed on startup of the Python runtime.
/// </summary>
internal static void Initialize()
{
string exceptionsModuleName = "builtins";
exceptions_module = PyModule.Import(exceptionsModuleName);
warnings_module = PyModule.Import("warnings");
Type type = typeof(Exceptions);
foreach (FieldInfo fi in type.GetFields(BindingFlags.Public | BindingFlags.Static))
{
using var op = Runtime.PyObject_GetAttrString(exceptions_module.obj, fi.Name);
if ([email protected]())
{
fi.SetValue(type, op.MoveToPyObject());
}
else
{
fi.SetValue(type, null);
DebugUtil.Print($"Unknown exception: {fi.Name}");
}
}
Runtime.PyErr_Clear();
}
/// <summary>
/// Import method
/// </summary>
/// <remarks>
/// Import a scope or a module of given name,
/// scope will be looked up first.
/// </remarks>
public dynamic Import(string name, string asname = null)
{
Check();
if (String.IsNullOrEmpty(asname))
{
asname = name;
}
PyScope scope;
Manager.TryGet(name, out scope);
if (scope != null)
{
Import(scope, asname);
return(scope);
}
else
{
var module = PyModule.Import(name);
Import(module, asname);
return(module);
}
}