TypeError: Missing 1 required positional argument: 'self'
You need to instantiate a class instance here.
Use
p = Pump()p.getPumps()Small example -
>>> class TestClass: def __init__(self): print("in init") def testFunc(self): print("in Test Func")>>> testInstance = TestClass()in init>>> testInstance.testFunc()in Test Func
Works and is simpler than every other solution I see here :
Pump().getPumps()This is great if you don't need to reuse a class instance. Tested on Python 3.7.3.