python - import error with numpy and matplotlib in Sublime text 3 -

i think have tried find on internet like

pip install numpy 

or

sudo apt-get install python3-numpy 

among others....

however, sublime text 3 keeps telling that:

traceback (most recent call last):  importerror: no module named numpy [finished in 0.2s] 

same other packages such matplotlib

from beginning installed sublime text 3, nothing else.

can me how manage installed packages in sublime text 3 ubuntu?