531 lines
21 KiB
TeX
531 lines
21 KiB
TeX
|
|
\section{Extension Reference}
|
|
|
|
From the viewpoint of of C access to Python services, we have:
|
|
|
|
\begin{enumerate}
|
|
\item "Very high level layer": two or three functions that let you exec or
|
|
eval arbitrary Python code given as a string in a module whose name is
|
|
given, passing C values in and getting C values out using
|
|
mkvalue/getargs style format strings. This does not require the user
|
|
to declare any variables of type "PyObject *". This should be enough
|
|
to write a simple application that gets Python code from the user,
|
|
execs it, and returns the output or errors.
|
|
|
|
\item "Abstract objects layer": which is the subject of this proposal.
|
|
It has many functions operating on objects, and lest you do many
|
|
things from C that you can also write in Python, without going
|
|
through the Python parser.
|
|
|
|
\item "Concrete objects layer": This is the public type-dependent
|
|
interface provided by the standard built-in types, such as floats,
|
|
strings, and lists. This interface exists and is currently
|
|
documented by the collection of include files provides with the
|
|
Python distributions.
|
|
|
|
From the point of view of Python accessing services provided by C
|
|
modules:
|
|
|
|
\item "Python module interface": this interface consist of the basic
|
|
routines used to define modules and their members. Most of the
|
|
current extensions-writing guide deals with this interface.
|
|
|
|
\item "Built-in object interface": this is the interface that a new
|
|
built-in type must provide and the mechanisms and rules that a
|
|
developer of a new built-in type must use and follow.
|
|
\end{enumerate}
|
|
|
|
The Python C object interface provides four protocols: object,
|
|
numeric, sequence, and mapping. Each protocol consists of a
|
|
collection of related operations. If an operation that is not
|
|
provided by a particular type is invoked, then a standard exception,
|
|
NotImplementedError is raised with a operation name as an argument.
|
|
In addition, for convenience this interface defines a set of
|
|
constructors for building objects of built-in types. This is needed
|
|
so new objects can be returned from C functions that otherwise treat
|
|
objects generically.
|
|
|
|
\subsubsection{Object Protocol}
|
|
\code{int *PyObject_Print(PyObject *o, FILE *fp, int flags)}\\
|
|
Print an object \code{o}, on file \code{fp}. Returns -1 on error
|
|
The flags argument is used to enable certain printing
|
|
options. The only option currently supported is \code{Py_Print_RAW}.
|
|
|
|
\code{int PyObject_HasAttrString(PyObject *o, char *attr_name)}\\
|
|
Returns 1 if o has the attribute attr_name, and 0 otherwise.
|
|
This is equivalent to the Python expression:
|
|
\code{hasattr(o,attr_name)}.
|
|
This function always succeeds.
|
|
|
|
\code{PyObject* PyObject_AttrString(PyObject *o, char *attr_name)}\\
|
|
Retrieve an attributed named attr_name form object o.
|
|
Returns the attribute value on success, or NULL on failure.
|
|
This is the equivalent of the Python expression: \code{o.attr_name}.
|
|
|
|
|
|
\code{int PyObject_HasAttr(PyObject *o, PyObject *attr_name)}\\
|
|
Returns 1 if o has the attribute attr_name, and 0 otherwise.
|
|
This is equivalent to the Python expression:
|
|
\code{hasattr(o,attr_name)}.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name)}\\
|
|
Retrieve an attributed named attr_name form object o.
|
|
Returns the attribute value on success, or NULL on failure.
|
|
This is the equivalent of the Python expression: o.attr_name.
|
|
|
|
|
|
\code{int PyObject_SetAttrString(PyObject *o, char *attr_name, PyObject *v)}\\
|
|
Set the value of the attribute named \code{attr_name}, for object \code{o},
|
|
to the value \code{v}. Returns -1 on failure. This is
|
|
the equivalent of the Python statement: \code{o.attr_name=v}.
|
|
|
|
|
|
\code{int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v)}\\
|
|
Set the value of the attribute named \code{attr_name}, for object \code{o},
|
|
to the value \code{v}. Returns -1 on failure. This is
|
|
the equivalent of the Python statement: \code{o.attr_name=v}.
|
|
|
|
|
|
\code{int PyObject_DelAttrString(PyObject *o, char *attr_name)}\\
|
|
Delete attribute named \code{attr_name}, for object \code{o}. Returns -1 on
|
|
failure. This is the equivalent of the Python
|
|
statement: \code{del o.attr_name}.
|
|
|
|
|
|
\code{int PyObject_DelAttr(PyObject *o, PyObject *attr_name)}\\
|
|
Delete attribute named \code{attr_name}, for object \code{o}. Returns -1 on
|
|
failure. This is the equivalent of the Python
|
|
statement: \code{del o.attr_name}.
|
|
|
|
|
|
\code{int PyObject_Cmp(PyObject *o1, PyObject *o2, int *result)}\\
|
|
Compare the values of \code{o1} and \code{o2} using a routine provided by
|
|
\code{o1}, if one exists, otherwise with a routine provided by \code{o2}.
|
|
The result of the comparison is returned in \code{result}. Returns
|
|
-1 on failure. This is the equivalent of the Python
|
|
statement: \code{result=cmp(o1,o2)}.
|
|
|
|
|
|
\code{int PyObject_Compare(PyObject *o1, PyObject *o2)}\\
|
|
Compare the values of \code{o1} and \code{o2} using a routine provided by
|
|
\code{o1}, if one exists, otherwise with a routine provided by \code{o2}.
|
|
Returns the result of the comparison on success. On error,
|
|
the value returned is undefined. This is equivalent to the
|
|
Python expression: \code{cmp(o1,o2)}.
|
|
|
|
|
|
\code{PyObject *PyObject_Repr(PyObject *o)}\\
|
|
Compute the string representation of object, \code{o}. Returns the
|
|
string representation on success, NULL on failure. This is
|
|
the equivalent of the Python expression: \code{repr(o)}.
|
|
Called by the \code{repr()} built-in function and by reverse quotes.
|
|
|
|
|
|
\code{PyObject *PyObject_Str(PyObject *o)}\\
|
|
Compute the string representation of object, \code{o}. Returns the
|
|
string representation on success, NULL on failure. This is
|
|
the equivalent of the Python expression: \code{str(o)}.
|
|
Called by the \code{str()} built-in function and by the \code{print}
|
|
statement.
|
|
|
|
|
|
\code{int *PyCallable_Check(PyObject *o))}\\
|
|
Determine if the object \code{o}, is callable. Return 1 if the
|
|
object is callable and 0 otherwise.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject *PyObject_CallObject(PyObject *callable_object, PyObject *args)}\\
|
|
Call a callable Python object \code{callable_object}, with
|
|
arguments given by the tuple \code{args}. If no arguments are
|
|
needed, then args may be NULL. Returns the result of the
|
|
call on success, or NULL on failure. This is the equivalent
|
|
of the Python expression: \code{apply(o,args)}.
|
|
|
|
\code{PyObject *PyObject_CallFunction(PyObject *callable_object, char *format, ...)}\\
|
|
Call a callable Python object \code{callable_object}, with a
|
|
variable number of C arguments. The C arguments are described
|
|
using a mkvalue-style format string. The format may be NULL,
|
|
indicating that no arguments are provided. Returns the
|
|
result of the call on success, or NULL on failure. This is
|
|
the equivalent of the Python expression: \code{apply(o,args)}.
|
|
|
|
|
|
\code{PyObject *PyObject_CallMethod(PyObject *o, char *m, char *format, ...)}\\
|
|
Call the method named \code{m} of object \code{o} with a variable number of
|
|
C arguments. The C arguments are described by a mkvalue
|
|
format string. The format may be NULL, indicating that no
|
|
arguments are provided. Returns the result of the call on
|
|
success, or NULL on failure. This is the equivalent of the
|
|
Python expression: \code{o.method(args)}.
|
|
Note that Special method names, such as "\code{__add__}",
|
|
"\code{__getitem__}", and so on are not supported. The specific
|
|
abstract-object routines for these must be used.
|
|
|
|
|
|
\code{int PyObject_Hash(PyObject *o)}\\
|
|
Compute and return the hash value of an object \code{o}. On
|
|
failure, return -1. This is the equivalent of the Python
|
|
expression: \code{hash(o)}.
|
|
|
|
|
|
\code{int *PyObject_IsTrue(PyObject *o)}\\
|
|
Returns 1 if the object \code{o} is considered to be true, and
|
|
0 otherwise. This is equivalent to the Python expression:
|
|
\code{not not o}.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject *PyObject_Type(PyObject *o)}\\
|
|
On success, returns a type object corresponding to the object
|
|
type of object \code{o}. On failure, returns NULL. This is
|
|
equivalent to the Python expression: \code{type(o)}.
|
|
|
|
\code{int PyObject_Length(PyObject *o)}\\
|
|
Return the length of object \code{o}. If the object \code{o} provides
|
|
both sequence and mapping protocols, the sequence length is
|
|
returned. On error, -1 is returned. This is the equivalent
|
|
to the Python expression: \code{len(o)}.
|
|
|
|
|
|
\code{PyObject *PyObject_GetItem(PyObject *o, PyObject *key)}\\
|
|
Return element of \code{o} corresponding to the object \code{key} or NULL
|
|
on failure. This is the equivalent of the Python expression:
|
|
\code{o[key]}.
|
|
|
|
|
|
\code{int PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v)}\\
|
|
Map the object \code{key} to the value \code{v}.
|
|
Returns -1 on failure. This is the equivalent
|
|
of the Python statement: \code{o[key]=v}.
|
|
|
|
|
|
\code{int PyObject_DelItem(PyObject *o, PyObject *key, PyObject *v)}\\
|
|
Delete the mapping for \code{key} from \code{*o}. Returns -1
|
|
on failure.
|
|
This is the equivalent of the Python statement: del o[key].
|
|
|
|
|
|
\subsubsection{Number Protocol}
|
|
|
|
\code{int PyNumber_Check(PyObject *o)}\\
|
|
Returns 1 if the object \code{o} provides numeric protocols, and
|
|
false otherwise.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject *PyNumber_Add(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of adding \code{o1} and \code{o2}, or null on failure.
|
|
This is the equivalent of the Python expression: \code{o1+o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Subtract(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of subtracting \code{o2} from \code{o1}, or null on
|
|
failure. This is the equivalent of the Python expression:
|
|
\code{o1-o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Multiply(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of multiplying \code{o1} and \code{o2}, or null on
|
|
failure. This is the equivalent of the Python expression:
|
|
\code{o1*o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Divide(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of dividing \code{o1} by \code{o2}, or null on failure.
|
|
This is the equivalent of the Python expression: \code{o1/o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Remainder(PyObject *o1, PyObject *o2)}\\
|
|
Returns the remainder of dividing \code{o1} by \code{o2}, or null on
|
|
failure. This is the equivalent of the Python expression:
|
|
\code{o1\%o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Divmod(PyObject *o1, PyObject *o2)}\\
|
|
See the built-in function divmod. Returns NULL on failure.
|
|
This is the equivalent of the Python expression:
|
|
\code{divmod(o1,o2)}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Power(PyObject *o1, PyObject *o2, PyObject *o3)}\\
|
|
See the built-in function pow. Returns NULL on failure.
|
|
This is the equivalent of the Python expression:
|
|
\code{pow(o1,o2,o3)}, where \code{o3} is optional.
|
|
|
|
|
|
\code{PyObject *PyNumber_Negative(PyObject *o)}\\
|
|
Returns the negation of \code{o} on success, or null on failure.
|
|
This is the equivalent of the Python expression: \code{-o}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Positive(PyObject *o)}\\
|
|
Returns \code{o} on success, or NULL on failure.
|
|
This is the equivalent of the Python expression: \code{+o}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Absolute(PyObject *o)}\\
|
|
Returns the absolute value of \code{o}, or null on failure. This is
|
|
the equivalent of the Python expression: \code{abs(o)}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Invert(PyObject *o)}\\
|
|
Returns the bitwise negation of \code{o} on success, or NULL on
|
|
failure. This is the equivalent of the Python expression:
|
|
\code{~o}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Lshift(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of left shifting \code{o1} by \code{o2} on success, or
|
|
NULL on failure. This is the equivalent of the Python
|
|
expression: \code{o1 << o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Rshift(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of right shifting \code{o1} by \code{o2} on success, or
|
|
NULL on failure. This is the equivalent of the Python
|
|
expression: \code{o1 >> o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_And(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result of "anding" \code{o2} and \code{o2} on success and NULL
|
|
on failure. This is the equivalent of the Python
|
|
expression: \code{o1 and o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Xor(PyObject *o1, PyObject *o2)}\\
|
|
Returns the bitwise exclusive or of \code{o1} by \code{o2} on success, or
|
|
NULL on failure. This is the equivalent of the Python
|
|
expression: \code{o1\^{ }o2}.
|
|
|
|
\code{PyObject *PyNumber_Or(PyObject *o1, PyObject *o2)}\\
|
|
Returns the result or \code{o1} and \code{o2} on success, or NULL on
|
|
failure. This is the equivalent of the Python expression:
|
|
\code{o1 or o2}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Coerce(PyObject *o1, PyObject *o2)}\\
|
|
On success, returns a tuple containing \code{o1} and \code{o2} converted to
|
|
a common numeric type, or None if no conversion is possible.
|
|
Returns -1 on failure. This is equivalent to the Python
|
|
expression: \code{coerce(o1,o2)}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Int(PyObject *o)}\\
|
|
Returns the \code{o} converted to an integer object on success, or
|
|
NULL on failure. This is the equivalent of the Python
|
|
expression: \code{int(o)}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Long(PyObject *o)}\\
|
|
Returns the \code{o} converted to a long integer object on success,
|
|
or NULL on failure. This is the equivalent of the Python
|
|
expression: \code{long(o)}.
|
|
|
|
|
|
\code{PyObject *PyNumber_Float(PyObject *o)}\\
|
|
Returns the \code{o} converted to a float object on success, or NULL
|
|
on failure. This is the equivalent of the Python expression:
|
|
\code{float(o)}.
|
|
|
|
|
|
\subsubsection{Sequence protocol}
|
|
|
|
\code{int PySequence_Check(PyObject *o)}\\
|
|
Return 1 if the object provides sequence protocol, and 0
|
|
otherwise.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject *PySequence_Concat(PyObject *o1, PyObject *o2)}\\
|
|
Return the concatination of \code{o1} and \code{o2} on success, and NULL on
|
|
failure. This is the equivalent of the Python
|
|
expression: \code{o1+o2}.
|
|
|
|
|
|
\code{PyObject *PySequence_Repeat(PyObject *o, int count)}\\
|
|
Return the result of repeating sequence object \code{o} count times,
|
|
or NULL on failure. This is the equivalent of the Python
|
|
expression: \code{o*count}.
|
|
|
|
|
|
\code{PyObject *PySequence_GetItem(PyObject *o, int i)}\\
|
|
Return the ith element of \code{o}, or NULL on failure. This is the
|
|
equivalent of the Python expression: \code{o[i]}.
|
|
|
|
|
|
\code{PyObject *PySequence_GetSlice(PyObject *o, int i1, int i2)}\\
|
|
Return the slice of sequence object \code{o} between \code{i1} and \code{i2}, or
|
|
NULL on failure. This is the equivalent of the Python
|
|
expression, \code{o[i1:i2]}.
|
|
|
|
|
|
\code{int PySequence_SetItem(PyObject *o, int i, PyObject *v)}\\
|
|
Assign object \code{v} to the \code{i}th element of \code{o}.
|
|
Returns -1 on failure. This is the equivalent of the Python
|
|
statement, \code{o[i]=v}.
|
|
|
|
\code{int PySequence_DelItem(PyObject *o, int i)}\\
|
|
Delete the \code{i}th element of object \code{v}. Returns
|
|
-1 on failure. This is the equivalent of the Python
|
|
statement: \code{del o[i]}.
|
|
|
|
\code{int PySequence_SetSlice(PyObject *o, int i1, int i2, PyObject *v)}\\
|
|
Assign the sequence object \code{v} to the slice in sequence
|
|
object \code{o} from \code{i1} to \code{i2}. This is the equivalent of the Python
|
|
statement, \code{o[i1:i2]=v}.
|
|
|
|
\code{int PySequence_DelSlice(PyObject *o, int i1, int i2)}\\
|
|
Delete the slice in sequence object, \code{o}, from \code{i1} to \code{i2}.
|
|
Returns -1 on failure. This is the equivalent of the Python
|
|
statement: \code{del o[i1:i2]}.
|
|
|
|
\code{PyObject *PySequence_Tuple(PyObject *o)}\\
|
|
Returns the \code{o} as a tuple on success, and NULL on failure.
|
|
This is equivalent to the Python expression: \code{tuple(o)}.
|
|
|
|
\code{int PySequence_Count(PyObject *o, PyObject *value)}\\
|
|
Return the number of occurrences of \code{value} on \code{o}, that is,
|
|
return the number of keys for which \code{o[key]==value}. On
|
|
failure, return -1. This is equivalent to the Python
|
|
expression: \code{o.count(value)}.
|
|
|
|
\code{int PySequence_In(PyObject *o, PyObject *value)}\\
|
|
Determine if \code{o} contains \code{value}. If an item in \code{o} is equal to
|
|
\code{value}, return 1, otherwise return 0. On error, return -1. This
|
|
is equivalent to the Python expression: \code{value in o}.
|
|
|
|
\code{int PySequence_Index(PyObject *o, PyObject *value)}\\
|
|
Return the first index for which \code{o[i]=value}. On error,
|
|
return -1. This is equivalent to the Python
|
|
expression: \code{o.index(value)}.
|
|
|
|
\subsubsection{Mapping protocol}
|
|
|
|
\code{int PyMapping_Check(PyObject *o)}\\
|
|
Return 1 if the object provides mapping protocol, and 0
|
|
otherwise.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{int PyMapping_Length(PyObject *o)}\\
|
|
Returns the number of keys in object \code{o} on success, and -1 on
|
|
failure. For objects that do not provide sequence protocol,
|
|
this is equivalent to the Python expression: \code{len(o)}.
|
|
|
|
|
|
\code{int PyMapping_DelItemString(PyObject *o, char *key)}\\
|
|
Remove the mapping for object \code{key} from the object \code{o}.
|
|
Return -1 on failure. This is equivalent to
|
|
the Python statement: \code{del o[key]}.
|
|
|
|
|
|
\code{int PyMapping_DelItem(PyObject *o, PyObject *key)}\\
|
|
Remove the mapping for object \code{key} from the object \code{o}.
|
|
Return -1 on failure. This is equivalent to
|
|
the Python statement: \code{del o[key]}.
|
|
|
|
|
|
\code{int PyMapping_HasKeyString(PyObject *o, char *key)}\\
|
|
On success, return 1 if the mapping object has the key \code{key}
|
|
and 0 otherwise. This is equivalent to the Python expression:
|
|
\code{o.has_key(key)}.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{int PyMapping_HasKey(PyObject *o, PyObject *key)}\\
|
|
Return 1 if the mapping object has the key \code{key}
|
|
and 0 otherwise. This is equivalent to the Python expression:
|
|
\code{o.has_key(key)}.
|
|
This function always succeeds.
|
|
|
|
|
|
\code{PyObject *PyMapping_Keys(PyObject *o)}\\
|
|
On success, return a list of the keys in object \code{o}. On
|
|
failure, return NULL. This is equivalent to the Python
|
|
expression: \code{o.keys()}.
|
|
|
|
|
|
\code{PyObject *PyMapping_Values(PyObject *o)}\\
|
|
On success, return a list of the values in object \code{o}. On
|
|
failure, return NULL. This is equivalent to the Python
|
|
expression: \code{o.values()}.
|
|
|
|
|
|
\code{PyObject *PyMapping_Items(PyObject *o)}\\
|
|
On success, return a list of the items in object \code{o}, where
|
|
each item is a tuple containing a key-value pair. On
|
|
failure, return NULL. This is equivalent to the Python
|
|
expression: \code{o.items()}.
|
|
|
|
\code{int PyMapping_Clear(PyObject *o)}\\
|
|
Make object \code{o} empty. Returns 1 on success and 0 on failure.
|
|
This is equivalent to the Python statement:
|
|
\code{for key in o.keys(): del o[key]}
|
|
|
|
|
|
\code{PyObject *PyMapping_GetItemString(PyObject *o, char *key)}\\
|
|
Return element of \code{o} corresponding to the object \code{key} or NULL
|
|
on failure. This is the equivalent of the Python expression:
|
|
\code{o[key]}.
|
|
|
|
\code{PyObject *PyMapping_SetItemString(PyObject *o, char *key, PyObject *v)}\\
|
|
Map the object \code{key} to the value \code{v} in object \code{o}. Returns
|
|
-1 on failure. This is the equivalent of the Python
|
|
statement: \code{o[key]=v}.
|
|
|
|
|
|
\subsubsection{Constructors}
|
|
|
|
\code{PyObject *PyFile_FromString(char *file_name, char *mode)}\\
|
|
On success, returns a new file object that is opened on the
|
|
file given by \code{file_name}, with a file mode given by \code{mode},
|
|
where \code{mode} has the same semantics as the standard C routine,
|
|
fopen. On failure, return -1.
|
|
|
|
\code{PyObject *PyFile_FromFile(FILE *fp, char *file_name, char *mode, int close_on_del)}\\
|
|
Return a new file object for an already opened standard C
|
|
file pointer, \code{fp}. A file name, \code{file_name}, and open mode,
|
|
\code{mode}, must be provided as well as a flag, \code{close_on_del}, that
|
|
indicates whether the file is to be closed when the file
|
|
object is destroyed. On failure, return -1.
|
|
|
|
\code{PyObject *PyFloat_FromDouble(double v)}\\
|
|
Returns a new float object with the value \code{v} on success, and
|
|
NULL on failure.
|
|
|
|
\code{PyObject *PyInt_FromLong(long v)}\\
|
|
Returns a new int object with the value \code{v} on success, and
|
|
NULL on failure.
|
|
|
|
\code{PyObject *PyList_New(int l)}\\
|
|
Returns a new list of length \code{l} on success, and NULL on
|
|
failure.
|
|
|
|
\code{PyObject *PyLong_FromLong(long v)}\\
|
|
Returns a new long object with the value \code{v} on success, and
|
|
NULL on failure.
|
|
|
|
\code{PyObject *PyLong_FromDouble(double v)}\\
|
|
Returns a new long object with the value \code{v} on success, and
|
|
NULL on failure.
|
|
|
|
\code{PyObject *PyDict_New()}\\
|
|
Returns a new empty dictionary on success, and NULL on
|
|
failure.
|
|
|
|
\code{PyObject *PyString_FromString(char *v)}\\
|
|
Returns a new string object with the value \code{v} on success, and
|
|
NULL on failure.
|
|
|
|
\code{PyObject *PyString_FromStringAndSize(char *v, int l)}\\
|
|
Returns a new string object with the value \code{v} and length \code{l}
|
|
on success, and NULL on failure.
|
|
|
|
\code{PyObject *PyTuple_New(int l)}\\
|
|
Returns a new tuple of length \code{l} on success, and NULL on
|
|
failure.
|
|
|