So I'm checking out python-sympy for some calculations in the Robotics subject I teach and realized that a bug was recently fixed in git which is crucial to what I hope to use it for. python-sympy-git in the AUR and that's settled. Then I got to wondering, I only really want to use the -git version till the next release, but since python-sympy is no longer installed (conflicts) I wouldn't automatically get it unless I check every once in a while if version is > 0.7.2. I figured installing a blank package with nothing in package() named python-sympy and with version 0.7.2 would allow me to get notified when python-sympy-0.7.3 or later gets in the repos. Is this a good way of doing it, or are there better ways?