NLTK, installed in python 2.7 but not working in python 3.4

apt software-installation python python3 python-2.7

9,463

Python 2 and Python 3 have different sets of installed packages.

I just installed nltk on both and am able to import in both.

pip2 install nltk
pip3 install nltk

9,463

just a curios person

Updated on September 18, 2022

Swarup Rajbhandari over 1 year

I just installed nltk when my default python was the 2.7 version, now when I open the python3 (3.4 version), I can't import nltk, is there any solution to this, to make nltk available for both versions?
- Carl H almost 9 years
  
  Python2 and Python3 should be regarded as two completely seperate packages. Installing a module for one does not install it for the other - if you need the same module available for both Py2 and Py3, then install it for both.
Swarup Rajbhandari almost 9 years

thanks, now its working, but now i have a problem with "numpy", when i am installing it, it shows that i have to install python-dev, and i installed it with python2 ,and so upgrading python dev is a no progress, "0 downloaded, 0 upgraded". and still i cant install numpy.
sbj3 almost 9 years

Good to hear. Now we go up a layer in the install stack. python-dev and python3-dev are ubuntu packages.