There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.
Mouse::PurePerl - A Mouse guts in pure Perl
This document describes Mouse version v2.5.11
Mouse::XS
To install Mouse, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mouse
CPAN shell
perl -MCPAN -e shell install Mouse
For more information on module installation, please visit the detailed CPAN module installation guide.