lokeshkopp...@gmail.com wrote:
> i had written the following code i am unable to create the instance of the
> class "Node" in the method "number_to_LinkedList" can any one help me how
> to do ?? and what is the error??
>
>
> class Node:
> def __init__(self, value=None):
> self.value = value
> self.next = None
>
>
>
> def number_to_LinkedList(numbers):
> pass
> list_numbers = list(numbers)
> head_node = Node() #unable to create the instance saying
> UnboundedLocal head_node.value = list_numbers[0]
> head_node.next = None
> current_node = head_node
> for i in range(1,len(list_numbers)):
> new_node = Node()
> new_node.value = list_numbers[i]
> new_node.next = current_node
> current_node = new_node
> current_node.next = None
> while Node:
> print Node.data
> Node = Node.next
You have to decide if you want to use a name in a function locally or to
access a global. Python treats names that are being assigned to anywhere in
a function as local throughout the whole function.
x = "global"
def f():
print x # ok, access global variable
x = "global"
def g():
x = "local"
print x # ok, accessing local variable
x = "global"
def h():
print x # error, accessing local variable that has not
# been assigned a value
x = "local"
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