Algorithms For Dummies

Using Conditional and Loop Statements

Algorithms often require steps that make decisions or perform some steps more 

than one time. For example, you might need to throw out a value that doesn’t fit 

with the rest of the data, which requires making a decision, or you might need to 

process the data more than once to obtain a desired result, such as when you filter 

the data. Python accommodates this need by providing special statements that 

make decisions or let you perform steps more than once, as described in the sec-

tions that follow.