| # my solutions to https://technology.jana.com/2016/04/26/challenge-your-python-knowledge/ | |
| def challenge_1(): | |
| ################ | |
| # solution #1 | |
| # | |
| # an open file handle will always count as "True", but the file might have | |
| # nothing in it. | |
| mystery = open('/dev/null', 'r') |
| def zipf(n): | |
| # element n is weighted by 1/n | |
| cumulative_weight = 0 | |
| cumulative_weights = [] | |
| for n in range(1, n + 1): | |
| cumulative_weight += 1.0 / n | |
| cumulative_weights.append(cumulative_weight) | |
| total_weight = cumulative_weights[-1] | |
| r = random.random() * total_weight |
#Challenge:
Create a command line program that will take an internet domain name (e.g. “jana.com”) and print out a list of the email addresses that were found on that website. It should find email addresses on any discoverable page of the website, not just the home page.
##Examples:
> python find_email_addresses.py jana.com
Found these email addresses:
sales@jana.com