python-pip cannot be updated on my manjaro32 system either. I've checked the mirrors, regenerated the list, checked the signatures are all okay. Still no go so skipped the package. @philm I did not install or use pip, it comes preinstalled with manjaro32 xfce. Nothing so far seems broken as a result but if it is safe to remove I'll do so. I've never knowingly needed it.
EDIT - it's an optional for hplip if you use the scan to PDF function (along with python-reportlab). I don't as my printer isn't an MFP so python-pip and python-reportlab are now destined for removal