4. if / else

• What to do when the if condition is false?.

• The else clause means otherwise.

• It is usually used to indicate complementary conditions.

• The if / else conditions can be seen as a car arriving at a fork in the road.

• Depending on the result of a condition, the car can take the upper or lower road.

• The two codes below do the same thing but one uses if / else conditions.

1 creation_year = 1 2 if creation_year <= 3: 3     print("Your car is new") 4 if creation_year > 3: 5     print("Your car is old") Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 4 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 4.1 (cl_l10_4a_en)

1 creation_year = 1 2 if creation_year <= 3: 3     print("Your car is new") 4 else: 5     print("Your car is old") Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 3 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 4.2 (cl_l10_4b_en)

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