Mac Brew Install Error

Error:no available formula with the name "Pygame"

==> searching for a previously deleted formula ( in the last month) ...

Warning:homebrew/core is shallow clone. To get the complete history run:

Git-c "$ (Brew--repo Homebrew/core)" Fetch--unshallow

Error:no previously deleted formula found.

==> searching for similarly named formulae ...

==> searching local taps ...

Error:no similarly named formulae found.

==> searching Taps ...

==> searching taps on GitHub ...

Error:no formulae found in taps.

Use the following command:

Rm-rf/usr/local/homebrew/library/taps/homebrew/homebrew-core; Brew Update

Mac Brew Install Error