How to create Python tuples by providing related functions in Python/C API
This article will explain in detail how to create Python tuples by providing related functions in Python/C API. The content of the article is of high quality, so Xiaobian shares it with you as a reference. I hope you have a certain understanding of related knowledge after reading this article.
If you provide PyTuple_New() function in Python/C API, use it to create Python tuples. Then PyTuple_New() function is in the process of returning the tuple created.
Prototypes of Python/C API related functions
PyObject* PyTuple_New( Py_ssize_t len)
The parameters have the following meanings.
len: Length of tuple created.
After the tuple is created, you can add items to the tuple using the PyTuple_SetItem() function. The prototype function is shown below.
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int PyTuple_SetItem( PyObject *p, Py_ssize_t pos, PyObject *o)
The parameters are defined as follows.
p: tuple of operations performed.
pos: Position index of the item added.
o: Added item value.
You can use the PyTuple_GetItem() function in the Python/C API to get the value of an item in a tuple. The PyTuple_GetItem() function returns the value of the item. The prototype function is shown below.
PyObject* PyTuple_GetItem( PyObject *p, Py_ssize_t pos)
The parameters have the following meanings.
p: tuple to be operated on.
pos: positional index of item.
When a tuple is created, it can be resized using the_PyTuple_Resize() function. The prototype function is shown below.
int _PyTuple_Resize( PyObject **p, Py_ssize_t newsize)
The parameters have the following meanings.
p: Pointer to tuple to be operated on.
newsize: The size of the new group.
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