PyCharm Professional Edition IDE editor for developing not only python applications.
You only need to download sources from www.jetbrains.com/pycharm
flatpak-builder --repo=repo build com.jetbrains.PyCharm-Professional.yaml --force-clean
flatpak remote-add --user mypycharm repo --no-gpg-verify
flatpak install --user mypycharm com.jetbrains.PyCharm-Professional
flatpak run com.jetbrains.PyCharm-Professional
flatpak uninstall --user com.jetbrains.PyCharm-Professional