Generate secure and easy to type passwords.
The passwords have no more than two consecutive characters from the same side of the keyboard, and no capitalized characters, which makes them relatively easy to type.
passwordgen also calculates the strength of your password. A password with 8 characters (the default) has 42 bits of entropy, which means that it will take 70 years for someone who can check a thousand passwords every second to find your password, given that he knows that you used passwordgen.
Passwords are created using the operating system random source (os.urandom).