With the Lite plan you'll be sent 1 exercise per month. You'll also get access to all Python Morsels screencasts.
When will I get my next exercise?
Each month's exercise recommendation email is sent on the first Monday of the month at 7am US Pacific Time. You'll get your new exercise credit at the same time. So you'll always get it between the 1st and 7th of the month.
The solution email is sent one week later (on the second Monday of the month).
When will I be billed?
You'll be billed each month on the anniversary of the day you signed up.
Note that you may be billed before you receive that month's exercise. For example if you signed up on the 4th of the month and one month the first Monday was on the 6th, you'll be billed on the 4th but you'll receive that month's exercise on the 6th.
What will happen when I cancel? Will I get an exercise next month?
When you cancel, your subscription will move into a non-renewing state. That means you'll continue to receive exercises (really 1 exercise at most) through the end of your current billing term.
You'll always receive at least the number of exercises you'd expect based on what you've paid (since if you pay for 6 months there will be 6 first Mondays of the month during the total time you're signed up).