How to set anaconda python as default

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step1) open a terminal

step2) edit bashrc file by typing

$ gedit ~/.bashrc

step3) add the following comment at the bottom of the file

## ANACONDA

export PATH=/home/dooseop/anaconda3/bin:${PATH}

step4) close the terminal and open again, and check 

$which python

-> /home/username/anaconda3/bin/python