defining class and list

[python101]

I want to create a list of integers and user will have the right to add into this list a number of elements that user wants. How can I do that?

[code=python]
class createList:
def __ini__(self):
self._listInt = list()

def __addValue(self , newValue):
self._ListInt.a ppend(newvalue)


>>>AttributeErr or: createList intance has no attribute '_listInt'
[/code]

[ilikepython]

I want to create a list of integers and user will have the right to add into this list a number of elements that user wants. How can I do that?

[code=python]
class createList:
def __ini__(self):
self._listInt = list()

def __addValue(self , newValue):
self._ListInt.a ppend(newvalue)


>>>AttributeErr or: createList intance has no attribute '_listInt'
[/code]

You spelled your method wrong. It shuold be:
[code=python]
def __init__(self):
[/code]

[python101]

It was a mistake of posting, the error message still remained

I found out that the some indicators in in lines ^_^

If I want to define a function to check whether an integer in list (return True or False), what should I do?
[code=python]
a=createList()
a=addValue(2)

>> 2 in a
>>error[/code]

[ilikepython]

It was a mistake of posting, the error message still remained

I found out that the some indicators in in lines ^_^

If I want to define a function to check whether an integer in list (return True or False), what should I do?
[code=python]
a=createList()
a=addValue(2)

>> 2 in a
>>error[/code]

You overload the in operator:
[code=python]
...
def __contains__(se lf, obj):
# do whatever you want and return True or False
[/code]

[python101]

You overload the in operator:
[code=python]
...
def __contains__(se lf, obj):
# do whatever you want and return True or False
[/code]

First time see this, thank you very much ^_^

anyway, do we have a way to add n integers into the list? If I use

[code=python]
def __addValue(self , newValue):

# I can only add 1, however I want to do ListA.addvalue( 2,3,4,5...)

[/code]

[elcron]

I want to create a list of integers and user will have the right to add into this list a number of elements that user wants. How can I do that?

[code=python]
class createList:
def __ini__(self):
self._listInt = list()

def __addValue(self , newValue):
self._ListInt.a ppend(newvalue)


>>>AttributeErr or: createList intance has no attribute '_listInt'
[/code]

Watch out for capitalization self.listInt does not equal self.ListInt. As for the function you can either write a function like:
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def contains(self, item):
return item in self.listInt

test = createList()
test.contains(s omeItem)
[/code]
Or operator overloading
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def __contains__(se lf, item):
return item in self.listInt

test = createList()
someItem in test
[/code]
Here's a good link on emulating data types and you could always try subclassing a list.

Edit: Sorry for posting what was already stated I had to do something before I could finish posting.

[python101]

Watch out for capitalization self.listInt does not equal self.ListInt. As for the function you can either write a function like:
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def contains(self, item):
return item in self.listInt

test = createList()
test.contains(s omeItem)
[/code]
Or operator overloading
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def __contains__(se lf, item):
return item in self.listInt

test = createList()
someItem in test
[/code]
Here's a good link on emulating data types and you could always try subclassing a list.

Edit: Sorry for posting what was already stated I had to do something before I could finish posting.

thank you very much for your help, I had finished this

[bvdet]

Watch out for capitalization self.listInt does not equal self.ListInt. As for the function you can either write a function like:
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def contains(self, item):
return item in self.listInt

test = createList()
test.contains(s omeItem)
[/code]
Or operator overloading
[code=python]
class createList:
def __init__(self):
self._listInt = list()

def __addValue(self , newValue):
self._listInt.a ppend(newvalue)

def __contains__(se lf, item):
return item in self.listInt

test = createList()
someItem in test
[/code]
Here's a good link on emulating data types and you could always try subclassing a list.

Edit: Sorry for posting what was already stated I had to do something before I could finish posting.

I made some minor modifications to the code you posted. The use of double preceeding underscores "privatizes " a variable - Python mangles the name of the method or attribute. A function or method will accept a variable number of parameters if an asterisk (*) is added to the last parameter name.[code=Python]class createList:
def __init__(self, *args):
self._listInt = list(args)

def __addValue(self , *newValue):
self._listInt.e xtend(newValue)

def contains(self, item):
return item in self._listInt

test = createList(9,2, 3,6,8)
print test._listInt
test._createLis t__addValue(21, 22,23)
print test._listInt
print test.contains(9 )


class createList:
def __init__(self, *args):
self._listInt = list(args)

def __addValue(self , *newValue):
self._listInt.e xtend(newValue)

def __contains__(se lf, item):
return item in self._listInt

test = createList(22,2 3,24)
print test._listInt
test._createLis t__addValue(3,4 ,5,6)
print test._listInt
test._createLis t__addValue(36)
print test._listInt
print 36 in test[/code]
Output:

>>> [9, 2, 3, 6, 8]
[9, 2, 3, 6, 8, 21, 22, 23]
True
[22, 23, 24]
[22, 23, 24, 3, 4, 5, 6]
[22, 23, 24, 3, 4, 5, 6, 36]
True
>>>