pip - PermissionError While Installing TensorFlow Using Virtualenv

Question

I was installing tensorflow using virtualenv. The following commands worked fine.

$ virtualenv ~/.tensorflow/bin/activate
$ pip install --upgrade tensorflow

But if I try:

$ virtualenv ~/.tensorflow/bin/activate
$ pip3 install tensorflow

I got PermissionError:

I tried the last command with sudo.

$ sudo pip3 install tensorflow

Then it seems like I can import tensorflow outside virtualenv. (Is it correct?)

How can I install tensorflow for python 3 only inside virtualenv?

By the way, I am using pip 9.0.1 for both python 2.7.12 and 3.5.2.

The version of virtualenv is 15.0.1.

Answer 1

If your virtual environment is in python3. Running pip install tensorflow should install it in your python3 environment.

$ virtualenv3 venv 
$ source venv/bin/activate
(venv)$ pip install tensorflow
(venv)$ pip freeze
appdirs==1.4.3
numpy==1.12.1
packaging==16.8
protobuf==3.3.0
pyparsing==2.2.0
six==1.10.0
tensorflow==1.1.0
Werkzeug==0.12.2
(venv) $>python
Python 3.6.0 (default, Jan 16 2017, 12:12:55) 
[GCC 6.3.1 20170109] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow as tf
>>> 

If you are running

virtualenv ~/.tensorflow/bin/activate

make sure virtualenv is for python3. And your virtual env will get created at ~/.tensorflow/bin/activate (Not sure if you want that). I'd suggest change that address to something simple, and make sure it does not contain the folder named as some of the libraries you want to import. It causes problems sometimes.

If you're trying to import tf in ipython3, you should also make sure that ipython is installed in the same environment. And if you run

ipython notebook

This will launch the default ipython (/usr/bin/ipython). You dont want that. So, run venv/bin/ipython3 instead