Download Python For Mac

Hi, I have already Python 2.7 & 3.5 on my Mac. I have been writing python programs using the IDLE. I now have need to install 'Homebrew' - I didn't previously know about 'Homebrew' as I am new to programming.

Mac Upgrade Python 3

When I try to install 'Homebrew' on the command line it fails. When I run 'brew doctor' I get the following warnings: Warning: 'config' scripts exist outside your system or Homebrew directories./configure scripts often look for.-config scripts to determine if software packages are installed, and what additional flags to use when compiling and linking. Having additional scripts in your path can confuse software installed via Homebrew if the config script overrides a system or Homebrew provided script of the same name.