问题
Hi I am unable to install nltk. I have already install Python.
C:\Users>pip install nltk
Downloading/unpacking nltk Cannot fetch index base URL https://pypi.python.org/simple/ Could not find any downloads that satisfy the requirement nltk Cleaning up... No distributions at all found for nltk Storing debug log for failure in C:\Users\pinnapav\pip\pip.log
回答1:
Try to use the command py -m pip install --upgrade nltk! This worked on my computer, with the same, basic Python-Installation.
Now you can mark as Answered ^-^
回答2:
Try to update pip:
pip install --upgrade pip
pip install --upgrade nltk
Worked for me!
来源：https://stackoverflow.com/questions/46912501/unable-to-install-nltk-using-pip