Cannot install pyflakes

[rashashaikh]

[Linter] Error running pyflakes Error: Failed to spawn command pyflakes. Make sure pyflakes is installed and on your PATH
at /home/rasha/.atom/packages/linter-pyflakes/node_modules/atom-linter/lib/helpers.js:130:24
at
at process._tickCallback (internal/process/next_tick.js:188:7)