| private PyErr_SetObject ( IntPtr ob, IntPtr message ) : void | ||
| ob | IntPtr | |
| message | IntPtr | |
| Résultat | void | |
/// <summary>
/// SetError Method
/// </summary>
/// <remarks>
/// Sets the current Python exception given a CLR exception
/// object. The CLR exception instance is wrapped as a Python
/// object, allowing it to be handled naturally from Python.
/// </remarks>
public static void SetError(Exception e)
{
// Because delegates allow arbitrary nesting of Python calling
// managed calling Python calling... etc. it is possible that we
// might get a managed exception raised that is a wrapper for a
// Python exception. In that case we'd rather have the real thing.
var pe = e as PythonException;
if (pe != null)
{
Runtime.XIncref(pe.PyType);
Runtime.XIncref(pe.PyValue);
Runtime.XIncref(pe.PyTB);
Runtime.PyErr_Restore(pe.PyType, pe.PyValue, pe.PyTB);
return;
}
IntPtr op = CLRObject.GetInstHandle(e);
IntPtr etype = Runtime.PyObject_GetAttr(op, PyIdentifier.__class__);
Runtime.PyErr_SetObject(new BorrowedReference(etype), new BorrowedReference(op));
Runtime.XDecref(etype);
Runtime.XDecref(op);
}
/// <summary>
/// SetError Method
/// </summary>
///
/// <remarks>
/// Sets the current Python exception given a CLR exception
/// object. The CLR exception instance is wrapped as a Python
/// object, allowing it to be handled naturally from Python.
/// </remarks>
public static void SetError(Exception e)
{
// Because delegates allow arbitrary nestings of Python calling
// managed calling Python calling... etc. it is possible that we
// might get a managed exception raised that is a wrapper for a
// Python exception. In that case we'd rather have the real thing.
PythonException pe = e as PythonException;
if (pe != null)
{
Runtime.PyErr_SetObject(pe.PyType, pe.PyValue);
return;
}
IntPtr op = CLRObject.GetInstHandle(e);
// XXX - hack to raise a compatible old-style exception ;(
if (Runtime.wrap_exceptions)
{
op = GetExceptionInstanceWrapper(op);
}
IntPtr etype = Runtime.PyObject_GetAttrString(op, "__class__");
Runtime.PyErr_SetObject(etype, op);
Runtime.Decref(etype);
Runtime.Decref(op);
}
/// <summary>
/// SetError Method
/// </summary>
/// <remarks>
/// Sets the current Python exception given a CLR exception
/// object. The CLR exception instance is wrapped as a Python
/// object, allowing it to be handled naturally from Python.
/// </remarks>
public static bool SetError(Exception e)
{
Debug.Assert(e is not null);
// Because delegates allow arbitrary nesting of Python calling
// managed calling Python calling... etc. it is possible that we
// might get a managed exception raised that is a wrapper for a
// Python exception. In that case we'd rather have the real thing.
if (e is PythonException pe)
{
pe.Restore();
return true;
}
using var instance = Converter.ToPython(e);
if (instance.IsNull()) return false;
var exceptionInfo = ExceptionDispatchInfo.Capture(e);
using var pyInfo = Converter.ToPython(exceptionInfo);
if (Runtime.PyObject_SetAttrString(instance.Borrow(), DispatchInfoAttribute, pyInfo.Borrow()) != 0)
return false;
Debug.Assert(Runtime.PyObject_TypeCheck(instance.Borrow(), BaseException));
var type = Runtime.PyObject_TYPE(instance.Borrow());
Runtime.PyErr_SetObject(type, instance.Borrow());
return true;
}
/// <summary>
/// SetError Method
/// </summary>
/// <remarks>
/// Sets the current Python exception given a Python object.
/// This is a wrapper for the Python PyErr_SetObject call.
/// </remarks>
public static void SetError(IntPtr ob, IntPtr value)
{
Runtime.PyErr_SetObject(ob, value);
}
/// <summary>
/// The actual import hook that ties Python to the managed world.
/// </summary>
public static IntPtr __import__(IntPtr self, IntPtr args, IntPtr kw)
{
// Replacement for the builtin __import__. The original import
// hook is saved as this.py_import. This version handles CLR
// import and defers to the normal builtin for everything else.
var num_args = Runtime.PyTuple_Size(args);
if (num_args < 1)
{
return(Exceptions.RaiseTypeError("__import__() takes at least 1 argument (0 given)"));
}
// borrowed reference
IntPtr py_mod_name = Runtime.PyTuple_GetItem(args, 0);
if (py_mod_name == IntPtr.Zero ||
!Runtime.IsStringType(py_mod_name))
{
return(Exceptions.RaiseTypeError("string expected"));
}
// Check whether the import is of the form 'from x import y'.
// This determines whether we return the head or tail module.
IntPtr fromList = IntPtr.Zero;
var fromlist = false;
if (num_args >= 4)
{
fromList = Runtime.PyTuple_GetItem(args, 3);
if (fromList != IntPtr.Zero &&
Runtime.PyObject_IsTrue(fromList) == 1)
{
fromlist = true;
}
}
string mod_name = Runtime.GetManagedString(py_mod_name);
// Check these BEFORE the built-in import runs; may as well
// do the Incref()ed return here, since we've already found
// the module.
if (mod_name == "clr" || mod_name == "CLR")
{
if (mod_name == "CLR")
{
Exceptions.deprecation("The CLR module is deprecated. Please use 'clr'.");
}
IntPtr clr_module = GetCLRModule(fromList);
if (clr_module != IntPtr.Zero)
{
IntPtr sys_modules = Runtime.PyImport_GetModuleDict();
if (sys_modules != IntPtr.Zero)
{
Runtime.PyDict_SetItemString(sys_modules, "clr", clr_module);
}
}
return(clr_module);
}
string realname = mod_name;
string clr_prefix = null;
if (mod_name.StartsWith("CLR."))
{
clr_prefix = "CLR."; // prepend when adding the module to sys.modules
realname = mod_name.Substring(4);
string msg = $"Importing from the CLR.* namespace is deprecated. Please import '{realname}' directly.";
Exceptions.deprecation(msg);
}
else
{
// 2010-08-15: Always seemed smart to let python try first...
// This shaves off a few tenths of a second on test_module.py
// and works around a quirk where 'sys' is found by the
// LoadImplicit() deprecation logic.
// Turns out that the AssemblyManager.ResolveHandler() checks to see if any
// Assembly's FullName.ToLower().StartsWith(name.ToLower()), which makes very
// little sense to me.
IntPtr res = Runtime.PyObject_Call(py_import, args, kw);
if (res != IntPtr.Zero)
{
// There was no error.
if (fromlist && IsLoadAll(fromList))
{
var mod = ManagedType.GetManagedObject(res) as ModuleObject;
mod?.LoadNames();
}
return(res);
}
// There was an error
if (!Exceptions.ExceptionMatches(Exceptions.ImportError))
{
// and it was NOT an ImportError; bail out here.
return(IntPtr.Zero);
}
if (mod_name == string.Empty)
{
// Most likely a missing relative import.
// For example site-packages\bs4\builder\__init__.py uses it to check if a package exists:
// from . import _html5lib
// We don't support them anyway
return(IntPtr.Zero);
}
// Otherwise, just clear the it.
Exceptions.Clear();
}
string[] names = realname.Split('.');
// Now we need to decide if the name refers to a CLR module,
// and may have to do an implicit load (for b/w compatibility)
// using the AssemblyManager. The assembly manager tries
// really hard not to use Python objects or APIs, because
// parts of it can run recursively and on strange threads.
//
// It does need an opportunity from time to time to check to
// see if sys.path has changed, in a context that is safe. Here
// we know we have the GIL, so we'll let it update if needed.
AssemblyManager.UpdatePath();
if (!AssemblyManager.IsValidNamespace(realname))
{
var loadExceptions = new List <Exception>();
if (!AssemblyManager.LoadImplicit(realname, assemblyLoadErrorHandler: loadExceptions.Add))
{
// May be called when a module being imported imports a module.
// In particular, I've seen decimal import copy import org.python.core
IntPtr importResult = Runtime.PyObject_Call(py_import, args, kw);
// TODO: use ModuleNotFoundError in Python 3.6+
if (importResult == IntPtr.Zero && loadExceptions.Count > 0 &&
Exceptions.ExceptionMatches(Exceptions.ImportError))
{
loadExceptions.Add(new PythonException());
var importError = new PyObject(new BorrowedReference(Exceptions.ImportError));
importError.SetAttr("__cause__", new AggregateException(loadExceptions).ToPython());
Runtime.PyErr_SetObject(new BorrowedReference(Exceptions.ImportError), importError.Reference);
}
return(importResult);
}
}
// See if sys.modules for this interpreter already has the
// requested module. If so, just return the existing module.
IntPtr modules = Runtime.PyImport_GetModuleDict();
IntPtr module = Runtime.PyDict_GetItem(modules, py_mod_name);
if (module != IntPtr.Zero)
{
if (fromlist)
{
if (IsLoadAll(fromList))
{
var mod = ManagedType.GetManagedObject(module) as ModuleObject;
mod?.LoadNames();
}
Runtime.XIncref(module);
return(module);
}
if (clr_prefix != null)
{
return(GetCLRModule(fromList));
}
module = Runtime.PyDict_GetItemString(modules, names[0]);
Runtime.XIncref(module);
return(module);
}
Exceptions.Clear();
// Traverse the qualified module name to get the named module
// and place references in sys.modules as we go. Note that if
// we are running in interactive mode we pre-load the names in
// each module, which is often useful for introspection. If we
// are not interactive, we stick to just-in-time creation of
// objects at lookup time, which is much more efficient.
// NEW: The clr got a new module variable preload. You can
// enable preloading in a non-interactive python processing by
// setting clr.preload = True
ModuleObject head = mod_name == realname ? null : root;
ModuleObject tail = root;
root.InitializePreload();
foreach (string name in names)
{
ManagedType mt = tail.GetAttribute(name, true);
if (!(mt is ModuleObject))
{
Exceptions.SetError(Exceptions.ImportError, $"No module named {name}");
return(IntPtr.Zero);
}
if (head == null)
{
head = (ModuleObject)mt;
}
tail = (ModuleObject)mt;
if (CLRModule.preload)
{
tail.LoadNames();
}
// Add the module to sys.modules
Runtime.PyDict_SetItemString(modules, tail.moduleName, tail.pyHandle);
// If imported from CLR add CLR.<modulename> to sys.modules as well
if (clr_prefix != null)
{
Runtime.PyDict_SetItemString(modules, clr_prefix + tail.moduleName, tail.pyHandle);
}
}
{
var mod = fromlist ? tail : head;
if (fromlist && IsLoadAll(fromList))
{
mod.LoadNames();
}
Runtime.XIncref(mod.pyHandle);
return(mod.pyHandle);
}
}
/// <summary>
/// SetError Method
/// </summary>
/// <remarks>
/// Sets the current Python exception given a Python object.
/// This is a wrapper for the Python PyErr_SetObject call.
/// </remarks>
public static void SetError(IntPtr type, IntPtr exceptionObject)
{
Runtime.PyErr_SetObject(new BorrowedReference(type), new BorrowedReference(exceptionObject));
}
/// <summary>
/// SetError Method
/// </summary>
/// <remarks>
/// Sets the current Python exception given a Python object.
/// This is a wrapper for the Python PyErr_SetObject call.
/// </remarks>
public static void SetError(BorrowedReference type, BorrowedReference exceptionObject)
{
Runtime.PyErr_SetObject(type, exceptionObject);
}