Assignment Operation( Its totally fun programming!)
One more thing in python that fascinates us is its ability to hold the values of the variable even after assignment operation.
Like say:
a=2
b=a
This is bound to keep the values of both a,b intact without any change.
so doing things like:
print a,b
gives #a=2,b=2
And!!
One more important thing to remember is sequential assignment: what I mean is assignment is sequential in its nature.
So if we have things like:
a,b=b,a
then the actual assignment format takes place. The result will be
a=b
b=a
Procedures: The sword of every programming language
Yes! its function in c and c++ , method in Java which are used for modular construction and abstraction of every program. In Python, functions or the procedures form the basis of writing module. Lets take a look at the module writing techniques .
def function_name():
#code lines
#
The novice awkwardness of python is its indentation of code blocks and absence of curly braces->{}. However with time as one goes down the road, it can be said that it becomes fun and enjoyable with it.
Object Orientation......The face of higher language programming
Yes, now we are coming to the point. It always begins with the already known Class thing. It is done in this way:
class class_name:
def function_name(self):
#code block
#....
Hold your breathe!, the self here is a way of providing access to objects form the methods.Without it,none of the methods will have access to the object itself, the object whose attributes they are supposed to manipulate.
As reminded from the past, we have Private and Public things to maintain.
Private variables can be declared using,
__(2 underscores) before function_name
eg. def __inaccessible(self):
Objects can be created in the obvious manner:
Simply,
class class_name():
#code
#
object=class_name()
and it can refer to any function as:
object.function()
So this was just a brief intro from the many features of Python.
More to follow...
