Boston Python Workshop 3/Friday/Tutorial: Difference between revisions

A <b>function signature</b> tells you how the function will be called. It starts with the keyword <code>def</code>, which tells Python that you are defining a function. Then comes a space, the name of your function, an open parenthesis, the comma-separated input <b>parameters</b> for your function, a close parenthesis, and a colon. Here's what a function signature looks like for a function that takes no arguments:

 

 

Here's what a function signature looks like for a function that takes one argument called <code>string</code>:

 

 

And one for a function that takes two arguments:

 

 

Parameters should have names that usefully describe what they are used for in the function.