TypeError:缺少一个必需的位置参数:‘Self’
Traceback (most recent call last): File "C:\Users\Dom\Desktop\test\test.py", line 7, in <module> p = Pump.getPumps()TypeError: getPumps() missing 1 required positional argument: 'self'
# test scriptfrom lib.pump import Pumpprint ("THIS IS A TEST OF PYTHON") # this printsp = Pump.getPumps()print (p)import pymysqlclass Pump:
def __init__(self):
print ("init") # never prints
def getPumps(self):
# Open database connection
# some stuff here that never gets executed because of error
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