As mentioned above the Python programming language
like many others has a number of important built-in functions that we can use
without needing to provide the function definition. The programmers who created
Python included a set of functions to solve common problems and included them
in Python so we can use them. The functions such as: print, type, int, str,
raw_input we already met. Now we’ll introduce a couple more.
The max and min functions give us the largest and
smallest values in a list, respectively:
>>>max(“Hello world!”) ‘w’ >>>min(“Hello world!”) ‘ ‘
The max functions tells us the “largest character” in
the string and the min functions shows us the smallest character which turns
out to be a space.
Another common built-in function is len functions
which gives us information of how many items are in its argument. If the
argument to len is a string, it returns the number of characters in the string.
>>>len(“Hello world!”) 12
You should avoid the names of built-in functions as
reserved words (AVOID USING BUILT-IN FUNCTION NAMES FOR YOUR FUNCTIONS OR NAME
OF VARIABLES). The list of built-in function in standard Python 2.7.11 are:
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Built-in Functions
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