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By Swaroop C. H.

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Back to reality, note that a tuple within a tuple does not lose its identity. We can access the items in the tuple by specifying the item's position within a pair of square brackets just like we did for lists. This is called the indexing operator. We access the third item in new_zoo by specifying new_zoo[2] and we access the third item within the third item in the new_zoo tuple by specifying new_zoo[2][2]. This is pretty simple once you've understood the idiom. Parentheses Although the parentheses is optional, I prefer always having them to make it obvious that it is a tuple, especially because it avoids ambiguity.

Note that DocStrings also apply to modules and classes which we will learn about in the respective chapters. The convention followed for a docstring is a multi-line string where the first line starts with a capital letter and ends with a dot. Then the second line is blank followed by any detailed explanation starting from the third line. You are strongly advised to follow this convention for all your docstrings for all your non-trivial functions. We can access the docstring of the printMax function using the __doc__ (notice the double underscores) attribute (name belonging to) of the function.

In loop works for any sequence. Here, we have a list of numbers generated by the built-in range function, but in general we can use any kind of sequence of any kind of objects! We will explore this idea in detail in later chapters. Note for C/C++/Java/C# Programmers The Python for loop is radically different from the C/C++ for loop. C# programmers will note that the for loop in Python is similar to the foreach loop in C#. 5 . In C/C++, if you want to write for (int i = 0; i < 5; i++), then in Python you write just for i in range(0,5).

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