Why does plugin for bash script work differ than bash in OS?

I've installed bash-pugin inside PyCharm and have found strange thing:

executon which python at my Ubuntu 16.04 gives me:

/home/mycomp/anaconda3/bin/python

but execution the same bash-string inside PyCharm with plugin for bash gives another python interpreter:

/usr/bin/python

Why does it happen? How do I do that bash inside Pycharm works like original bash in my Ubuntu?