By Swaroop C. H.
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Extra info for A Byte of Python 1.92
Operators with the same precedence are listed in the same row in the above table. For example, + and - have the same precedence. Changing the Order Of Evaluation To make the expressions more readable, we can use parentheses. For example, 2 + (3 * 4) is definitely easier to understand than 2 + 3 * 4 which requires knowledge of the operator precedences. As with everything else, the parentheses should be used reasonably (do not overdo it) and should not be redundant (as in 2 + (3 + 4)). There is an additional advantage to using parentheses - it helps us to change the order of evaluation.
If you want to have keyword-only arguments but have no need for a starred parameter, then simply use an empty star without using any name such as def total(initial=5, *, vegetables). e. break out of the function. We can optionally return a value from the function as well. py 3 How It Works: The maximum function returns the maximum of the parameters, in this case the numbers supplied to the function. else statement to find the greater value and then returns that value. Note that a return statement without a value is equivalent to return None.
Py Enter something : a Too small Enter something : 12 Too small 43 Python en:Control Flow Enter something : abc Input is of sufficient length Enter something : quit How It Works: In this program, we accept input from the user, but we process them only if they are at least 3 characters long. So, we use the built-in len function to get the length and if the length is less than 3, we skip the rest of the statements in the block by using the continue statement. Otherwise, the rest of the statements in the loop are executed and we can do any kind of processing we want to do here.