This module provides a single class, RobotFileParser, which answers questions about whether or not a particular user agent can fetch a URL on the Web site that published the robots.txt file. For more details on the structure of robots.txt files, see http://www.robotstxt.org/wc/norobots.html.
| ) |
This class provides a set of methods to read, parse and answer questions about a single robots.txt file.
| url) |
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| lines) |
| useragent, url) |
True if the useragent is allowed to fetch the url
according to the rules contained in the parsed robots.txt file.
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robots.txt file was last fetched. This is
useful for long-running web spiders that need to check for new
robots.txt files periodically.
| ) |
robots.txt file was last fetched to the current
time.
The following example demonstrates basic use of the RobotFileParser class.
>>> import robotparser
>>> rp = robotparser.RobotFileParser()
>>> rp.set_url("http://www.musi-cal.com/robots.txt")
>>> rp.read()
>>> rp.can_fetch("*", "http://www.musi-cal.com/cgi-bin/search?city=San+Francisco")
False
>>> rp.can_fetch("*", "http://www.musi-cal.com/")
True