% pip index versions polygon-api-client
WARNING: pip index is currently an experimental command. It may be removed/changed in a future release without prior warning.
polygon-api-client (1.7.2)
Available versions: 1.7.2, 1.7.1, 1.7.0, 1.6.3, 1.6.2, 1.6.1, 1.6.0, 1.5.0, 1.4.0, 1.3.1, 1.3.0, 1.2.1, 1.2.0, 1.1.2, 1.1.1, 1.1.0, 1.0.2, 1.0.1, 1.0.0, 0.2.11, 0.1.11, 0.1.10, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5, 0.1.4, 0.1.3, 0.1.2, 0.1.1, 0.1.0, 0.0.3, 0.0.2, 0.0.1
  INSTALLED: 1.7.2
  LATEST:    1.7.2

% pip install polygon-api-client==1.8.0
ERROR: Could not find a version that satisfies the requirement polygon-api-client==1.8.0 (from versions: 0.0.1, 0.0.2, 0.0.3, 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.1.8, 0.1.9, 0.1.10, 0.1.11, 0.2.11, 1.0.0b1, 1.0.0b6, 1.0.0b8, 1.0.0b9, 1.0.0b10, 1.0.0b11, 1.0.0b12, 1.0.0b13, 1.0.0b14, 1.0.0b15, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1, 1.1.2, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.7.0, 1.7.1, 1.7.2)
ERROR: No matching distribution found for polygon-api-client==1.8.0