Some additional information.
Binary Python 2 packages were not built on Mint 21 only the Python 3 versions were built by the installation process.
python-gi: Python 2.x bindings for gobject-introspection libraries
GObject is an abstraction layer that allows programming with an object
paradigm that is compatible with many languages. It is a part of Glib,
the core library used to build GTK+ and GNOME.
.
This package contains the Python 2.x binding generator for libraries that
support gobject-introspection, i. e. which ship a gir1.2-<name>-<version>
package. With these packages, the libraries can be used from Python.
python-gi-cairo: Python Cairo bindings for the GObject library
GObject is an abstraction layer that allows programming with an object
paradigm that is compatible with many languages. It is a part of Glib,
the core library used to build GTK+ and GNOME.
.
This package contains the Python Cairo bindings for GObject. It is mostly
used by other bindings to map their GObjects to Python objects.
python-gi-dbg: No summary available for python-gi-dbg in ubuntu cosmic.
No description available for python-gi-dbg in ubuntu cosmic.
python-gi-dev: development headers for GObject Python bindings
GObject is an abstraction layer that allows programming with an object
paradigm that is compatible with many languages. It is a part of Glib,
the core library used to build GTK+ and GNOME.
.
This package contains the development headers needed to build C extensions
which use pygobject.
python-gobject: Python 2.x bindings for GObject - transitional package
This package will bring the two versions of GObject Python modules: the
deprecated gobject module, and the new gobject-introspection system. It
is here for upgrade purposes only. You can remove it safely when
nothing else depends on it.
python3-gi: Python 3 bindings for gobject-introspection libraries
GObject is an abstraction layer that allows programming with an object
paradigm that is compatible with many languages. It is a part of Glib,
the core library used to build GTK+ and GNOME.
.
This package contains the Python 3 binding generator for libraries that
support gobject-introspection, i. e. which ship a gir1.2-<name>-<version>
package. With these packages, the libraries can be used from Python 3.
python3-gi-cairo: Python 3 Cairo bindings for the GObject library
GObject is an abstraction layer that allows programming with an object
paradigm that is compatible with many languages. It is a part of Glib,
the core library used to build GTK+ and GNOME.
.
This package contains the Python 3 Cairo bindings for GObject. It is mostly
used by other bindings to map their GObjects to Python objects.
python3-gi-dbg: No summary available for python3-gi-dbg in ubuntu cosmic.
No description available for python3-gi-dbg in ubuntu cosmic.