User-Agent strings beginning with P
- page_prefetcher
- PHP Script
- pirs
- PRCrawler/Nutch-0.9 (data mining development project; crawler@projectrialto.com)
- psbot/0.1 (+http://www.picsearch.com/bot.html)
- PycURL/7.15.0
- PycURL/7.18.2
- PycURL/7.19.3
- Python-urllib/1.17
- Python-urllib/2.6