I have a class say:
class MyClass:
def mymethod(self, data1, data2):
print (self.data1)
print (self.data2)
and I am calling this class somewhere in a Django view and sending this argument like:
mycls = MyClass()
mycls.mymethod(data1, data2)
When I do this it says 'MyClass' object has no attribute 'data1'
What's wrong?
Because you haven't assigned to them yet. I'm guessing that what you're trying to do is something like this:
class MyClass:
def mymethod(self, data1, data2):
self.data1 = data1
self.data2 = data2
print(self.data1)
print(self.data2)
Until you actually assign to self.something (even if you have a parameter to the method called something), that variable doesn't exist. something and self.something are two different things.
Or, if you're just trying to print the values of two parameters to a method, you might want to do this instead:
class MyClass:
def mymethod(self, data1, data2):
print(data1)
print(data2)
in MyClass.mymethod you totally ignore the data1 and data2 args and try to print the (obviously non-existant) instance attributes self.data1 and self.data2. Either it's a typo (yeah, it happens ) or you don't understand what is self in this context and the difference between arguments and attributes...
try this data1 you are sending and in mymethod are different :
class MyClass:
def mymethod(self, data1, data2):
self.data1 = data1
self.data2 = data2
print self.data1
print self.data2
OR
print data1
print data2
