[Python] WARNING: The script flask is installed in

  WARNING: The script flask is installed in '경로' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

 

 

해결 방법 

# 경고문에 나오는 경로를 PATH에 추가
export PATH=$PATH:경로

# Example
export PATH=$PATH:/usr/local