CODEWITHSUNDEEP
pythontensorflownltk
V. Shikongo
V. Shikongo

Reputation: 13

No module named 'nltk'

I successfully installed nltk and works fine. I have to run a file where nltk was imported and tensorflow too ,hence, i have to activate tensorflow.

When I activate tensorflow the .py file i want to run gives an error. I have read some solution but they didn't help. 

HP-250-G5-Notebook-PC:~$ python
Python 3.6.3 |Anaconda custom (64-bit)| (default, Oct 13 2017, 12:02:49) 
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import nltk
>>>

this works fine but this does not

(tensorflow)HP-250-G5-Notebook-PC:~/AIG2018/Chatbot$ python
Python 3.5.2 (default, Nov 23 2017, 16:37:01) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import nltk
Traceback (most recent call last):
File "<stdin>", line 1, in <module>

What is that I am doing worng?

ImportError: No module named 'nltk'

Upvotes: 1

Views: 22558

Answers (2)

sacuL
sacuL

Reputation: 51335

You're using two different versions of python, and you probably installed nltk in your root environment, but not your virtual environment. When you "activate" the environment called tensorflow, you are using a different virtual environment, in which you haven't installed nltk. Try activating tensorflow, then using pip install nltk, then starting python. Because you seem to be using anaconda, this would probably look like this:

# Do these first 2 steps in your terminal:
source activate tensorflow
# you're now in the virtual environment called tensorflow
pip install nltk
# you now have nltk in that virtual environment

# Now, you can start python
python

Python 3.5.2 (default, Nov 23 2017, 16:37:01) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import nltk

And you shouldn't have that error

Upvotes: 6

BoarGules
BoarGules

Reputation: 16942

If you look closely at your messages you will see that the successful import of nltk is on Python 3.6.3 and the failed import is on Python 3.5.2.

This indicates that you have two Python installations of different versions, and nltk is installed in one but not in the other.

Upvotes: 1

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