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using
System
;
using
System
.
Collections
.
Generic
;
using
System
.
Diagnostics
;
using
System
.
Dynamic
;
using
System
.
Linq
;
using
System
.
Linq
.
Expressions
;
using
System
.
Runtime
.
Serialization
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a generic Python object. The methods of this class are
/// generally equivalent to the Python "abstract object API". See
/// PY2: https://docs.python.org/2/c-api/object.html
/// PY3: https://docs.python.org/3/c-api/object.html
/// for details.
/// </summary>
[
Serializable
]
[
DebuggerDisplay
(
"{"
+
nameof
(
DebuggerDisplay
)
+
",nq}"
)
]
public
partial
class
PyObject
:
DynamicObject
,
IDisposable
{
#if
TRACE_ALLOC
/// <summary>
/// Trace stack for PyObject's construction
/// </summary>
public
StackTrace
Traceback
{
get
;
private
set
;
}
#endif
protected
internal
IntPtr
rawPtr
=
IntPtr
.
Zero
;
internal
BorrowedReference
obj
=>
new
(
rawPtr
)
;
public
static
PyObject
None
=>
new
(
Runtime
.
PyNone
)
;
internal
BorrowedReference
Reference
=>
new
(
rawPtr
)
;
/// <summary>
/// PyObject Constructor
/// </summary>
/// <remarks>
/// Creates a new PyObject from an IntPtr object reference. Note that
/// the PyObject instance assumes ownership of the object reference
/// and the reference will be DECREFed when the PyObject is garbage
/// collected or explicitly disposed.
/// </remarks>
[
Obsolete
]
internal
PyObject
(
IntPtr
ptr
)
{
if
(
ptr
==
IntPtr
.
Zero
)
throw
new
ArgumentNullException
(
nameof
(
ptr
)
)
;
rawPtr
=
ptr
;
Finalizer
.
Instance
.
ThrottledCollect
(
)
;
#if
TRACE_ALLOC
Traceback
=
new
StackTrace
(
1
)
;
#endif
}
[
Obsolete
(
"for testing purposes only"
)
]
internal
PyObject
(
IntPtr
ptr
,
bool
skipCollect
)
{
if
(
ptr
==
IntPtr
.
Zero
)
throw
new
ArgumentNullException
(
nameof
(
ptr
)
)
;
rawPtr
=
ptr
;
if
(
!
skipCollect
)
Finalizer
.
Instance
.
ThrottledCollect
(
)
;
#if
TRACE_ALLOC
Traceback
=
new
StackTrace
(
1
)
;
#endif
}
/// <summary>
/// Creates new <see cref="PyObject"/> pointing to the same object as
/// the <paramref name="reference"/>. Increments refcount, allowing <see cref="PyObject"/>
/// to have ownership over its own reference.
/// </summary>
internal
PyObject
(
BorrowedReference
reference
)
{
if
(
reference
.
IsNull
)
throw
new
ArgumentNullException
(
nameof
(
reference
)
)
;
rawPtr
=
new
NewReference
(
reference
)
.
DangerousMoveToPointer
(
)
;
Finalizer
.
Instance
.
ThrottledCollect
(
)
;
#if
TRACE_ALLOC
Traceback
=
new
StackTrace
(
1
)
;
#endif
}
internal
PyObject
(
in
StolenReference
reference
)
{
if
(
reference
==
null
)
throw
new
ArgumentNullException
(
nameof
(
reference
)
)
;
rawPtr
=
reference
.
DangerousGetAddressOrNull
(
)
;
Finalizer
.
Instance
.
ThrottledCollect
(
)
;
#if
TRACE_ALLOC
Traceback
=
new
StackTrace
(
1
)
;
#endif
}
// Ensure that encapsulated Python object is decref'ed appropriately
// when the managed wrapper is garbage-collected.
~
PyObject
(
)
{
if
(
IsDisposed
)
{
return
;
}
Finalizer
.
Instance
.
AddFinalizedObject
(
ref
rawPtr
)
;
}
/// <summary>
/// Gets the native handle of the underlying Python object. This
/// value is generally for internal use by the PythonNet runtime.
/// </summary>
[
Obsolete
]
public
IntPtr
Handle
{
get
{
return
rawPtr
;
}
}
/// <summary>
/// Gets raw Python proxy for this object (bypasses all conversions,
/// except <c>null</c> <==> <c>None</c>)
/// </summary>
/// <remarks>
/// Given an arbitrary managed object, return a Python instance that
/// reflects the managed object.
/// </remarks>
public
static
PyObject
FromManagedObject
(
object
ob
)
{
// Special case: if ob is null, we return None.
if
(
ob
==
null
)
{
return
new
PyObject
(
Runtime
.
PyNone
)
;
}
return
CLRObject
.
GetReference
(
ob
)
.
MoveToPyObject
(
)
;
}
/// <summary>
/// Creates new <see cref="PyObject"/> from a nullable reference.
/// When <paramref name="reference"/> is <c>null</c>, <c>null</c> is returned.
/// </summary>
internal
static
PyObject
?
FromNullableReference
(
BorrowedReference
reference
)
=>
reference
.
IsNull
?
null
:
new
PyObject
(
reference
)
;
/// <summary>
/// AsManagedObject Method
/// </summary>
/// <remarks>
/// Return a managed object of the given type, based on the
/// value of the Python object.
/// </remarks>
public
object
?
AsManagedObject
(
Type
t
)
{
if
(
!
Converter
.
ToManaged
(
obj
,
t
,
out
var
result
,
true
)
)
{
throw
new
InvalidCastException
(
"cannot convert object to target type"
,
PythonException
.
FetchCurrentOrNull
(
out
_
)
)
;
}
return
result
;
}
/// <summary>
/// Return a managed object of the given type, based on the
/// value of the Python object.
/// </summary>
public
T
As
<
T
>
(
)
=>
(
T
)
this
.
AsManagedObject
(
typeof
(
T
)
)
;
internal
bool
IsDisposed
=>
rawPtr
==
IntPtr
.
Zero
;
/// <summary>
/// Dispose Method
/// </summary>
/// <remarks>
/// The Dispose method provides a way to explicitly release the
/// Python object represented by a PyObject instance. It is a good
/// idea to call Dispose on PyObjects that wrap resources that are
/// limited or need strict lifetime control. Otherwise, references
/// to Python objects will not be released until a managed garbage
/// collection occurs.
/// </remarks>
protected
virtual
void
Dispose
(
bool
disposing
)
{
if
(
IsDisposed
)
{
return
;
}
if
(
Runtime
.
Py_IsInitialized
(
)
==
0
)
throw
new
InvalidOperationException
(
"Python runtime must be initialized"
)
;
if
(
!
Runtime
.
IsFinalizing
)
{
long
refcount
=
Runtime
.
Refcount
(
this
.
obj
)
;
Debug
.
Assert
(
refcount
>
0
,
"Object refcount is 0 or less"
)
;
if
(
refcount
==
1
)
{
Runtime
.
PyErr_Fetch
(
out
var
errType
,
out
var
errVal
,
out
var
traceback
)
;
try
{
Runtime
.
XDecref
(
StolenReference
.
Take
(
ref
rawPtr
)
)
;
Runtime
.
CheckExceptionOccurred
(
)
;
}
finally
{
// Python requires finalizers to preserve exception:
// https://docs.python.org/3/extending/newtypes.html#finalization-and-de-allocation
Runtime
.
PyErr_Restore
(
errType
.
StealNullable
(
)
,
errVal
.
StealNullable
(
)
,
traceback
.
StealNullable
(
)
)
;
}
}
else
{
Runtime
.
XDecref
(
StolenReference
.
Take
(
ref
rawPtr
)
)
;
}
}
else
{
throw
new
InvalidOperationException
(
"Runtime is already finalizing"
)
;
}
this
.
rawPtr
=
IntPtr
.
Zero
;
}
public
void
Dispose
(
)
{
Dispose
(
true
)
;
GC
.
SuppressFinalize
(
this
)
;
}
internal
BorrowedReference
GetPythonTypeReference
(
)
=>
Runtime
.
PyObject_TYPE
(
obj
)
;
/// <summary>
/// GetPythonType Method
/// </summary>
/// <remarks>
/// Returns the Python type of the object. This method is equivalent
/// to the Python expression: type(object).
/// </remarks>
public
PyType
GetPythonType
(
)
{
var
tp
=
Runtime
.
PyObject_TYPE
(
Reference
)
;
return
new
PyType
(
tp
,
prevalidated
:
true
)
;
}
/// <summary>
/// TypeCheck Method
/// </summary>
/// <remarks>
/// Returns true if the object o is of type typeOrClass or a subtype
/// of typeOrClass.
/// </remarks>
public
bool
TypeCheck
(
PyType
typeOrClass
)
{
if
(
typeOrClass
==
null
)
throw
new
ArgumentNullException
(
nameof
(
typeOrClass
)
)
;
return
Runtime
.
PyObject_TypeCheck
(
obj
,
typeOrClass
.
obj
)
;
}
/// <summary>
/// HasAttr Method
/// </summary>
/// <remarks>
/// Returns true if the object has an attribute with the given name.
/// </remarks>
public
bool
HasAttr
(
string
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
return
Runtime
.
PyObject_HasAttrString
(
Reference
,
name
)
!=
0
;
}
/// <summary>
/// HasAttr Method
/// </summary>
/// <remarks>
/// Returns true if the object has an attribute with the given name,
/// where name is a PyObject wrapping a string or unicode object.
/// </remarks>
public
bool
HasAttr
(
PyObject
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
return
Runtime
.
PyObject_HasAttr
(
Reference
,
name
.
Reference
)
!=
0
;
}
/// <summary>
/// GetAttr Method
/// </summary>
/// <remarks>
/// Returns the named attribute of the Python object, or raises a
/// PythonException if the attribute access fails.
/// </remarks>
public
PyObject
GetAttr
(
string
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
using
var
op
=
Runtime
.
PyObject_GetAttrString
(
obj
,
name
)
;
return
new
PyObject
(
op
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Returns the named attribute of the Python object, or the given
/// default object if the attribute access throws AttributeError.
/// </summary>
/// <remarks>
/// This method ignores any AttrubiteError(s), even ones
/// not raised due to missing requested attribute.
///
/// For example, if attribute getter calls other Python code, and
/// that code happens to cause AttributeError elsewhere, it will be ignored
/// and <paramref name="_default"/> value will be returned instead.
/// </remarks>
/// <param name="name">Name of the attribute.</param>
/// <param name="_default">The object to return on AttributeError.</param>
[
Obsolete
(
"See remarks"
)
]
public
PyObject
GetAttr
(
string
name
,
PyObject
_default
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
using
var
op
=
Runtime
.
PyObject_GetAttrString
(
obj
,
name
)
;
if
(
op
.
IsNull
(
)
)
{
if
(
Exceptions
.
ExceptionMatches
(
Exceptions
.
AttributeError
)
)
{
Runtime
.
PyErr_Clear
(
)
;
return
_default
;
}
else
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
return
new
PyObject
(
op
.
Steal
(
)
)
;
}
/// <summary>
/// GetAttr Method
/// </summary>
/// <remarks>
/// Returns the named attribute of the Python object or raises a
/// PythonException if the attribute access fails. The name argument
/// is a PyObject wrapping a Python string or unicode object.
/// </remarks>
public
PyObject
GetAttr
(
PyObject
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
using
var
op
=
Runtime
.
PyObject_GetAttr
(
obj
,
name
.
obj
)
;
return
new
PyObject
(
op
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Returns the named attribute of the Python object, or the given
/// default object if the attribute access throws AttributeError.
/// </summary>
/// <remarks>
/// This method ignores any AttrubiteError(s), even ones
/// not raised due to missing requested attribute.
///
/// For example, if attribute getter calls other Python code, and
/// that code happens to cause AttributeError elsewhere, it will be ignored
/// and <paramref name="_default"/> value will be returned instead.
/// </remarks>
/// <param name="name">Name of the attribute. Must be of Python type 'str'.</param>
/// <param name="_default">The object to return on AttributeError.</param>
[
Obsolete
(
"See remarks"
)
]
public
PyObject
GetAttr
(
PyObject
name
,
PyObject
_default
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
using
var
op
=
Runtime
.
PyObject_GetAttr
(
obj
,
name
.
obj
)
;
if
(
op
.
IsNull
(
)
)
{
if
(
Exceptions
.
ExceptionMatches
(
Exceptions
.
AttributeError
)
)
{
Runtime
.
PyErr_Clear
(
)
;
return
_default
;
}
else
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
return
new
PyObject
(
op
.
Steal
(
)
)
;
}
/// <summary>
/// SetAttr Method
/// </summary>
/// <remarks>
/// Set an attribute of the object with the given name and value. This
/// method throws a PythonException if the attribute set fails.
/// </remarks>
public
void
SetAttr
(
string
name
,
PyObject
value
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
value
==
null
)
throw
new
ArgumentNullException
(
nameof
(
value
)
)
;
int
r
=
Runtime
.
PyObject_SetAttrString
(
obj
,
name
,
value
.
obj
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// SetAttr Method
/// </summary>
/// <remarks>
/// Set an attribute of the object with the given name and value,
/// where the name is a Python string or unicode object. This method
/// throws a PythonException if the attribute set fails.
/// </remarks>
public
void
SetAttr
(
PyObject
name
,
PyObject
value
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
value
==
null
)
throw
new
ArgumentNullException
(
nameof
(
value
)
)
;
int
r
=
Runtime
.
PyObject_SetAttr
(
obj
,
name
.
obj
,
value
.
obj
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// DelAttr Method
/// </summary>
/// <remarks>
/// Delete the named attribute of the Python object. This method
/// throws a PythonException if the attribute set fails.
/// </remarks>
public
void
DelAttr
(
string
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
int
r
=
Runtime
.
PyObject_DelAttrString
(
obj
,
name
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// DelAttr Method
/// </summary>
/// <remarks>
/// Delete the named attribute of the Python object, where name is a
/// PyObject wrapping a Python string or unicode object. This method
/// throws a PythonException if the attribute set fails.
/// </remarks>
public
void
DelAttr
(
PyObject
name
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
int
r
=
Runtime
.
PyObject_DelAttr
(
obj
,
name
.
obj
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// GetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// return the item at the given object index. This method raises a
/// PythonException if the indexing operation fails.
/// </remarks>
public
virtual
PyObject
GetItem
(
PyObject
key
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
using
var
op
=
Runtime
.
PyObject_GetItem
(
obj
,
key
.
obj
)
;
if
(
op
.
IsNull
(
)
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
return
new
PyObject
(
op
.
Steal
(
)
)
;
}
/// <summary>
/// GetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// return the item at the given string index. This method raises a
/// PythonException if the indexing operation fails.
/// </remarks>
public
virtual
PyObject
GetItem
(
string
key
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
using
(
var
pyKey
=
new
PyString
(
key
)
)
{
return
GetItem
(
pyKey
)
;
}
}
/// <summary>
/// GetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// return the item at the given numeric index. This method raises a
/// PythonException if the indexing operation fails.
/// </remarks>
public
virtual
PyObject
GetItem
(
int
index
)
{
using
(
var
key
=
new
PyInt
(
index
)
)
{
return
GetItem
(
key
)
;
}
}
/// <summary>
/// SetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// set the item at the given object index to the given value. This
/// method raises a PythonException if the set operation fails.
/// </remarks>
public
virtual
void
SetItem
(
PyObject
key
,
PyObject
value
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
if
(
value
==
null
)
throw
new
ArgumentNullException
(
nameof
(
value
)
)
;
int
r
=
Runtime
.
PyObject_SetItem
(
obj
,
key
.
obj
,
value
.
obj
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// SetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// set the item at the given string index to the given value. This
/// method raises a PythonException if the set operation fails.
/// </remarks>
public
virtual
void
SetItem
(
string
key
,
PyObject
value
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
if
(
value
==
null
)
throw
new
ArgumentNullException
(
nameof
(
value
)
)
;
using
(
var
pyKey
=
new
PyString
(
key
)
)
{
SetItem
(
pyKey
,
value
)
;
}
}
/// <summary>
/// SetItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// set the item at the given numeric index to the given value. This
/// method raises a PythonException if the set operation fails.
/// </remarks>
public
virtual
void
SetItem
(
int
index
,
PyObject
value
)
{
if
(
value
==
null
)
throw
new
ArgumentNullException
(
nameof
(
value
)
)
;
using
(
var
pyindex
=
new
PyInt
(
index
)
)
{
SetItem
(
pyindex
,
value
)
;
}
}
/// <summary>
/// DelItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// delete the item at the given object index. This method raises a
/// PythonException if the delete operation fails.
/// </remarks>
public
virtual
void
DelItem
(
PyObject
key
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
int
r
=
Runtime
.
PyObject_DelItem
(
obj
,
key
.
obj
)
;
if
(
r
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
}
/// <summary>
/// DelItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// delete the item at the given string index. This method raises a
/// PythonException if the delete operation fails.
/// </remarks>
public
virtual
void
DelItem
(
string
key
)
{
if
(
key
==
null
)
throw
new
ArgumentNullException
(
nameof
(
key
)
)
;
using
(
var
pyKey
=
new
PyString
(
key
)
)
{
DelItem
(
pyKey
)
;
}
}
/// <summary>
/// DelItem Method
/// </summary>
/// <remarks>
/// For objects that support the Python sequence or mapping protocols,
/// delete the item at the given numeric index. This method raises a
/// PythonException if the delete operation fails.
/// </remarks>
public
virtual
void
DelItem
(
int
index
)
{
using
(
var
pyindex
=
new
PyInt
(
index
)
)
{
DelItem
(
pyindex
)
;
}
}
/// <summary>
/// Returns the length for objects that support the Python sequence
/// protocol.
/// </summary>
public
virtual
long
Length
(
)
{
var
s
=
Runtime
.
PyObject_Size
(
Reference
)
;
if
(
s
<
0
)
{
throw
PythonException
.
ThrowLastAsClrException
(
)
;
}
return
s
;
}
/// <summary>
/// String Indexer
/// </summary>
/// <remarks>
/// Provides a shorthand for the string versions of the GetItem and
/// SetItem methods.
/// </remarks>
public
virtual
PyObject
this
[
string
key
]
{
get
{
return
GetItem
(
key
)
;
}
set
{
SetItem
(
key
,
value
)
;
}
}
/// <summary>
/// PyObject Indexer
/// </summary>
/// <remarks>
/// Provides a shorthand for the object versions of the GetItem and
/// SetItem methods.
/// </remarks>
public
virtual
PyObject
this
[
PyObject
key
]
{
get
{
return
GetItem
(
key
)
;
}
set
{
SetItem
(
key
,
value
)
;
}
}
/// <summary>
/// Numeric Indexer
/// </summary>
/// <remarks>
/// Provides a shorthand for the numeric versions of the GetItem and
/// SetItem methods.
/// </remarks>
public
virtual
PyObject
this
[
int
index
]
{
get
{
return
GetItem
(
index
)
;
}
set
{
SetItem
(
index
,
value
)
;
}
}
/// <summary>
/// Return a new (Python) iterator for the object. This is equivalent
/// to the Python expression "iter(object)".
/// </summary>
/// <exception cref="PythonException">Thrown if the object can not be iterated.</exception>
public
PyIter
GetIterator
(
)
=>
PyIter
.
GetIter
(
this
)
;
/// <summary>
/// Invoke Method
/// </summary>
/// <remarks>
/// Invoke the callable object with the given arguments, passed as a
/// PyObject[]. A PythonException is raised if the invocation fails.
/// </remarks>
public
PyObject
Invoke
(
params
PyObject
[
]
args
)
{
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
if
(
args
.
Contains
(
null
)
)
throw
new
ArgumentNullException
(
)
;
var
t
=
new
PyTuple
(
args
)
;
using
var
r
=
Runtime
.
PyObject_Call
(
obj
,
t
.
obj
,
null
)
;
t
.
Dispose
(
)
;
return
new
PyObject
(
r
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Invoke Method
/// </summary>
/// <remarks>
/// Invoke the callable object with the given arguments, passed as a
/// Python tuple. A PythonException is raised if the invocation fails.
/// </remarks>
public
PyObject
Invoke
(
PyTuple
args
)
{
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
using
var
r
=
Runtime
.
PyObject_Call
(
obj
,
args
.
obj
,
null
)
;
return
new
PyObject
(
r
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Invoke Method
/// </summary>
/// <remarks>
/// Invoke the callable object with the given positional and keyword
/// arguments. A PythonException is raised if the invocation fails.
/// </remarks>
public
PyObject
Invoke
(
PyObject
[
]
args
,
PyDict
?
kw
)
{
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
if
(
args
.
Contains
(
null
)
)
throw
new
ArgumentNullException
(
)
;
using
var
t
=
new
PyTuple
(
args
)
;
using
var
r
=
Runtime
.
PyObject_Call
(
obj
,
t
.
obj
,
kw
is
null
?
null
:
kw
.
obj
)
;
return
new
PyObject
(
r
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// Invoke Method
/// </summary>
/// <remarks>
/// Invoke the callable object with the given positional and keyword
/// arguments. A PythonException is raised if the invocation fails.
/// </remarks>
public
PyObject
Invoke
(
PyTuple
args
,
PyDict
?
kw
)
{
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
using
var
r
=
Runtime
.
PyObject_Call
(
obj
,
args
.
obj
,
kw
is
null
?
null
:
kw
.
obj
)
;
return
new
PyObject
(
r
.
StealOrThrow
(
)
)
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
string
name
,
params
PyObject
[
]
args
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
if
(
args
.
Contains
(
null
)
)
throw
new
ArgumentNullException
(
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
string
name
,
PyTuple
args
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
PyObject
name
,
params
PyObject
[
]
args
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
if
(
args
.
Contains
(
null
)
)
throw
new
ArgumentNullException
(
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
PyObject
name
,
PyTuple
args
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments
/// and keyword arguments. Keyword args are passed as a PyDict object.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
string
name
,
PyObject
[
]
args
,
PyDict
?
kw
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
if
(
args
.
Contains
(
null
)
)
throw
new
ArgumentNullException
(
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
,
kw
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// InvokeMethod Method
/// </summary>
/// <remarks>
/// Invoke the named method of the object with the given arguments
/// and keyword arguments. Keyword args are passed as a PyDict object.
/// A PythonException is raised if the invocation is unsuccessful.
/// </remarks>
public
PyObject
InvokeMethod
(
string
name
,
PyTuple
args
,
PyDict
?
kw
)
{
if
(
name
==
null
)
throw
new
ArgumentNullException
(
nameof
(
name
)
)
;
if
(
args
==
null
)
throw
new
ArgumentNullException
(
nameof
(
args
)
)
;
PyObject
method
=
GetAttr
(
name
)
;
PyObject
result
=
method
.
Invoke
(
args
,
kw
)
;
method
.
Dispose
(
)
;
return
result
;
}
/// <summary>
/// IsInstance Method
/// </summary>
/// <remarks>
/// Return true if the object is an instance of the given Python type
/// or class. This method always succeeds.
/// </remarks>
public
bool
IsInstance
(
PyObject
typeOrClass
)
{
if
(
typeOrClass
==
null
)
throw
new
ArgumentNullException
(
nameof
(
typeOrClass
)
)
;
int
r
=
Runtime
.
PyObject_IsInstance
(
obj
,
typeOrClass
.
obj
)
;
if
(
r
<
0
)
{
Runtime
.
PyErr_Clear
(
)
;
return
false
;
}
return
r
!=
0
;
}
/// <summary>
/// Return <c>true</c> if the object is identical to or derived from the
/// given Python type or class. This method always succeeds.
/// </summary>
public
bool
IsSubclass
(
PyObject
typeOrClass
)
{
if
(
typeOrClass
==
null
)
throw
new
ArgumentNullException
(
nameof
(
typeOrClass
)
)
;
return
IsSubclass
(
typeOrClass
.
Reference
)
;
}
internal
bool
IsSubclass
(
BorrowedReference
typeOrClass
)
{
if
(
typeOrClass
.
IsNull
)
throw
new
ArgumentNullException
(
nameof
(
typeOrClass
)
)
;
int
r
=
Runtime
.
PyObject_IsSubclass
(
Reference
,
typeOrClass
)
;
if
(
r
<
0
)
{
Runtime
.
PyErr_Clear
(
)
;
return
false
;
}
return
r
!=
0
;
}
/// <summary>
/// IsCallable Method
/// </summary>
/// <remarks>
/// Returns true if the object is a callable object. This method
/// always succeeds.
/// </remarks>
public
bool
IsCallable
(
)
{
return
Runtime
.
PyCallable_Check
(
obj
)
!=
0
;
}
/// <summary>
/// IsIterable Method
/// </summary>
/// <remarks>
/// Returns true if the object is iterable object. This method
/// always succeeds.
/// </remarks>
public
bool
IsIterable
(
)
{
return
Runtime
.
PyObject_IsIterable
(
obj
)
;
}
/// <summary>
/// IsTrue Method
/// </summary>
/// <remarks>
/// Return true if the object is true according to Python semantics.
/// This method always succeeds.
/// </remarks>
public
bool
IsTrue
(
)
{
return
Runtime
.
PyObject_IsTrue
(
obj
)
!=
0
;
}
/// <summary>
/// Return true if the object is None
/// </summary>
public
bool
IsNone
(
)
=>
CheckNone
(
this
)
==
null
;
/// <summary>
/// Dir Method
/// </summary>
/// <remarks>
/// Return a list of the names of the attributes of the object. This
/// is equivalent to the Python expression "dir(object)".
/// </remarks>
public
PyList
Dir
(
)
{
using
var
r
=
Runtime
.
PyObject_Dir
(
obj
)
;
return
new
PyList
(
r
.
StealOrThrow
(
)
)
;
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