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Inspect and manage pip's wheel cache.
Subcommands:
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- remove: Remove one or more package from the cache.
- purge: Remove all items from the cache.
``<pattern>`` can be a glob expression or a package name.
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%prog dir
%prog info
%prog list [<pattern>] [--format=[human, abspath]]
%prog remove <pattern>
%prog purge
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