new 0.7.2 does not install due to pint version bug

[ludvn]

Could not find a version that satisfies the requirement pint==0.20.* (from obd) (from versions: 0.1, 0.1.1, 0.1.2, 0.1.3, 0.2, 0.2.1, 0.3, 0.3.1, 0.3.2, 0.3.3, 0.4, 0.4.1, 0.4.2, 0.5, 0.5.1, 0.5.2, 0.6, 0.7, 0.7.1, 0.7.2, 0.8, 0.8.1, 0.9)
No matching distribution found for pint==0.20.* (from obd)