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Modules
As you start to write larger programs, you will want to save the function de?nitions in multiple ?les, collected together according to what they do. So, for example, we may collect a set of utility functions together into in one file, called utility.py. This ?le is known as a module in Python.
Now, if we want to use those procedures in another shell or file, we will require to say import utility so that all those procedures become available to us and to the Python interpereter. Now, if we have a function in utility.py named foo, we may use it with the name utility.foo. You may study more about modules, and how to instance reference functions described in procedures, in the Python documentation.
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Perimeter of a polygon Now, let's consider the problem of computing the length of the perimeter of a polygon. The input is a structure of vertices, encoded as a list of list
Worked example 1 Let's examine what happens when we compute the following Python code: def p(x, y): z = x*x - y return z + 1/z >>> p(1.0, 2.0) -2.0
Tuples and strings Python has two different more list-like data types that are very important to understand.A tuple is a structure that is like a list, but is not mutab
from urllib2 import urlopen var= ('' response">http://placekitten.com'') response = kittens.read(body) body = response[559:1000] print ''Kittens:'', response
You should use for whenever you can, because it creates the structure of your loops clear. Sometimes, however, you require to do an operation various times, but you don't want t
Depending on your previous programming background, we use different sides through the available readings: If you have never programmed before: you should start with a
We sell pdf''s from our site and pdfs can be ordered from the site by selecting a book, putting it in a shopping cart, then signing in with a password or as a guest, and then check
protocol rdt2.2 considers there is a bit errors between sender to receiver and also from receiver to sender. So now we have to consider checking bit errors introduced in reply from
how to make a python programme for van der waals equation of state with surface discontinouty
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