I have an older spreadsheet referencing “mp-769834”. Actually, this is in the electronic transport database in MPContribs.
If I search the MP web site for this MP id, I get back results for a different MP id - “mp-761284”. I presume, but did not confirm, that this is actually a proper redirect to the same material but a new id was assigned. So the web site is redirecting properly.
But if I try to get data via MPRester, it doesn’t work unless I use the new id:
from pymatgen import MPRester mpr = MPRester() print(mpr.get_data("mp-761284", prop="e_above_hull")) # new ID works print(mpr.get_data("mp-769834", prop="e_above_hull")) # old ID fails