This lesson will allow you to do complex case-checking more elegantly, using two new parts of the Python language.<\/p>\n
if \u00abC\u00bb<\/code> statement, an else<\/code> statement executes only if C<\/code> is false<\/em><\/li>\n- you can combine boolean conditions using
A and B<\/code>, A or B<\/code>, and\u00a0not A<\/code><\/li>\n<\/ul>\nelse<\/code><\/h1>\nA common task in writing programs is that you want to test some condition, and take either one action or another action, depending on the condition is true or false. Earlier<\/a>, an exercise asked you to do something if age<\/code> was less than 0, and something else if age<\/code> is not less than 0; the code was something like<\/p>\nif age >= 0: \u00a0\n print('You are not necessarily a time traveller')\nif age < 0:\n \u00a0print('You are a time traveller')<\/pre>Now let's rewrite it to use else<\/code>.<\/p>\n