On 2020-12-22 11:16, Walk More wrote:
I am trying to use dot notation to call a function without using parentheses,
see code section with ***
I have looked into SimpleNamespace, namedTuple, dataclass... but no luck.
Below is my sample code to date.
Any suggestions?
class MyTest:
def __init__(self):
self.page1 = Page()
self.page1.top = Counts()
#self.page1.middle = Layout()
#self.page1.bottom = Layout()
# access of variables created on the fly using dot notation work.
self.page1.top.item1 = 5
self.page1.top.name1 = "Harry"
print ("Variables created on the fly: ", self.page1.top.item1,
self.page1.top.name1)
# access of a predefined class variable using dot notation work.
print ("Start of predefined class variable access: ",
self.page1.top.totalCount)
self.page1.top.totalCount = 22
self.page1.top.totalCount = self.page1.top.totalCount + 3
print ("End of predefined class variable access: ",
self.page1.top.totalCount)
# function calls using parentheses using dot notation work.
print ("Start of function calls: ", self.page1.top.getRunningSum())
self.page1.top.addRunningSum(5)
self.page1.top.addRunningSum(200)
endValue = self.page1.top.getRunningSum()
print ("End of function calls: ", endValue)
# *** This is the syntax I would like to use. ***
# function calls not using parentheses DO NOT WORK using dot notation.
self.page1.top.addRunningSum = 6
t = self.page1.top.getRunningSum
print (t)
class Page ():
def __init__ (self):
pass
class Counts():
def __init__ (self):
self.totalCount = 0
def addRunningSum(self, indata):
self.totalCount = self.totalCount + indata
def getRunningSum (self):
return self.totalCount
if __name__ == "__main__":
MyTest()
#end of program
It would be simpler just to access the totalCount attribute directly,
but, in answer to your question, you can make it a property:
@property
def getRunningSum(self):
return self.totalCount
and you'll then need to remove the parenthese where you're calling it.
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