Python script crawling for flights

This is a python script crawling a remote web service to find flights and related prices. At the end of elaboration it sends a summary email to a given address.

• it reads a file provided by http://openflights.org/data.html with all IATA codes.
• The file must be in the same directory of script.
• You need to configure a mailbox recipient that is the sender of the final message.
• If you want to filter for a restricted list of airports, you need to edit the airports.csv file.
• The script queries the web service with an offset of +\- 3 days for both departure and return date.
• The result is an html file with a list of options: the one highlighted in green is the cheapest one, while the one highlighted in yellow is the one that exactly matches queried dates

A specific destination:

python flights_crawler.py 20160201 20160210 JFK LAX

All destinations in file:

python flights_crawler.py 20160201 20160210 JFK all