## Task Create a Python script that reads a .mbox file and calculates some statistics from the mbox and prints them to stdout.
## Input: any mbox file, e.g. http://mail-archives.apache.org/mod_mbox/zookeeper-bookkeeper-dev/201411.mbox http://download.gmane.org/gmane.linux.kernel.rpi/0/2000
## Expected output
- percentage of messages / domain
- message size (without quotes) / domain
- quote percentage / domain
### Example output
If you format the output differently it is also ok.
“`
Total message count / domain:
---------Domain--------------------------------+–Msg-+-Percentage-+
| 1 | @gmail.com | 500 | 20.50 % |
| 2 | @apache.org | 403 | 15.32 % |
…
| 10 | @hotmail.com | 50 | 2.05 % |
-----------------------------------------------+------+------------+
| other | 2000 | 23.52 % |
-----------------------------------------------+------+------------+
Total message size / domain
---------Author-------------------------------------------+-KBytes-+
| 1 | @gmail.com | 453.2 |
| 2 | @apache.org | 345.8 |
…
| 10 | @hotmail.com | 201.9 |
----------------------------------------------------------+--------+
“`
## Environment
e.g. `create_mbox_stats 201411.mbox`
## Time: Three hours.