When comparing Pixiv vs pip, the Slant community recommends Pixiv for most people. In the question“What are the best sites to discover art?” Pixiv is ranked 3rd while pip is ranked 6th. The most important reason people chose Pixiv is:
Much of the content on Pixiv, due to its origins as a Japanese site focused on illustration, centers around anime, manga, and video games. As a result, it's very easy to find a good amount of quality fan art for popular franchises suitable for use as desktop backgrounds and the like.
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Pros
Pro High quality fan art
Much of the content on Pixiv, due to its origins as a Japanese site focused on illustration, centers around anime, manga, and video games. As a result, it's very easy to find a good amount of quality fan art for popular franchises suitable for use as desktop backgrounds and the like.
Cons
Con No revisions or rollbacks
pip is not a package manager, it won't handle revisions or rollbacks https://github.com/pypa/pip/issues/3867