NLTK Lookup Error

Question

While running a Python script using NLTK I got this:

Traceback (most recent call last):
  File \"cpicklesave.py\", line 56, in 
    pos = nltk.         


        

Answer 1

Use

>>> nltk.download()

to install the missing module (the Perceptron Tagger).

(check also the answers to Failed loading english.pickle with nltk.data.load)