PyDev plugin cannot find python 3.4

Question

I am using eclipse 3.8 + PyDev + python 3.3 on ubuntu 13. I recently updated ubuntu to 14.04. It seems that ubuntu 14.04 comes with the new python 3.4, so during the upgrade, the old python 3.3 is removed and the new python 3.4 is installed. Then the PyDev plugin of my eclipse cannot find python 3.3 in its source directory, and the error message, as well as a lot of red crossroads, as shown in the figure below.

But the Python 3.4 installation is correct, because I can easily import pickle or arbitrary modules into the IDLE that python 3.4 uses:

PyDev 3.4.1. , Python ( , ) eclipse, PyDev , Python 3.4? .

Answer 1

, :

(1) , "" . " ".

(2) "PyDev-Interpreter/Grammar" " , " .

(3) "Python Interpreters" "..." python 3.4. /usr/bin/python3.4.

(4) OK , . . Python3.4 , python 3.3, , ...

(5) eclipse. ...

python, pymongo, . . .