python_doc_md/Advanced/c-api/bool.md

Boolean Objects {#boolobjects}

Booleans in Python are implemented as a subclass of integers. There are only two booleans, Py_False{.interpreted-text role="c:data"} and Py_True{.interpreted-text role="c:data"}. As such, the normal creation and deletion functions don't apply to booleans. The following macros are available, however.

This instance of PyTypeObject{.interpreted-text role="c:type"} represents the Python boolean type; it is the same object as bool{.interpreted-text role="class"} in the Python layer.

Return true if o is of type PyBool_Type{.interpreted-text role="c:data"}. This function always succeeds.

The Python False object. This object has no methods and is immortal{.interpreted-text role="term"}.

::: versionchanged 3.12 Py_False{.interpreted-text role="c:data"} is immortal{.interpreted-text role="term"}. :::

The Python True object. This object has no methods and is immortal{.interpreted-text role="term"}.

::: versionchanged 3.12 Py_True{.interpreted-text role="c:data"} is immortal{.interpreted-text role="term"}. :::

Return Py_False{.interpreted-text role="c:data"} from a function.

Return Py_True{.interpreted-text role="c:data"} from a function.

Return Py_True{.interpreted-text role="c:data"} or Py_False{.interpreted-text role="c:data"}, depending on the truth value of v.