TensorFlow not found using pip

Question

I found this to finally work.

python3 -m pip install --upgrade https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-1.12.0-py3-none-any.whl

Edit 1: This was tested on Windows (8, 8.1, 10), Mac and Linux. Change python3 to python according to your configuration. Change py3 to py2 in the url if you are using Python 2.x.

Edit 2: A list of different versions if someone needs: https://storage.googleapis.com/tensorflow

Edit 3: A list of urls for the available wheel packages is available here: https://www.tensorflow.org/install/pip#package-location

You need a 64-bit version of Python and in your case are using a 32-bit version. As of now Tensorflow only supports 64-bit versions of Python 3.5.x and 3.8.x on Windows. See the install docs to see what is currently supported

To check which version of Python you are running, type python or python3 to start the interpreter, and then type import struct;print(struct.calcsize("P") * 8) and that will print either 32 or 64 to tell you which bit version of Python you are running.

From comments:

To download a different version of Python for Windows, go to python.org/downloads/windows and scroll down until you see the version you want that ends in a "64". That will be the 64 bit version that should work with tensorflow

You need to use the right version of Python and pip.

On Windows 10, with Python 3.6.X version I was facing the same problem, then after checking deliberately I noticed I had the Python-32 bit installation on my 64 bit machine. Remember TensorFlow is only compatible with 64bit installation of Python, not the 32 bit version of Python

If we download Python from python.org, the default installation would be 32 bit. So we have to download the 64 bit installer manually to install Python 64 bit. And then add below to PATH environment.

C:\Users\AppData\Local\Programs\Python\Python36
C:\Users\AppData\Local\Programs\Python\Python36\Scripts

Then run gpupdate /Force on command prompt. If the Python command doesn't work for 64 bit then restart your machine.

Then run python on command prompt. It should show 64 bit.

C:\Users\YOURNAME>python
Python 3.6.3 (v3.6.3:2c5fed8, Oct  3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

Then run below command to install tensorflow CPU version (recommended)

pip3 install --upgrade tensorflow

---

October 2020 update:

Tensorflow now supports Python 3.5.x through Python 3.8.x, but you still have to use a 64-bit version.

If you need to run multiple versions of Python on the same machine, you can use a virtual environment to help manage them.

From tensorflow website: "You will need pip version 8.1 or later for the following commands to work". Run this command to upgrade your pip, then try install tensorflow again:

pip install --upgrade pip

If you are trying to install it on a windows machine you need to have a 64-bit version of python 3.5. This is the only way to actually install it. From the website:

TensorFlow supports only 64-bit Python 3.5 on Windows. We have tested the pip packages with the following distributions of Python:

Python 3.5 from Anaconda

Python 3.5 from python.org.

You can download the proper version of python from here (make sure you grab one of the ones that says "Windows x86-64")

You should now be able to install with pip install tensorflow or python -m pip install tensorflow (make sure that you are using the right pip, from python3, if you have both python2 and python3 installed)

Remember to install Anaconda 3-5.2.0 as the latest version which is 3-5.3.0 have python version 3.7 which is not supported by Tensorflow.

I figured out that TensorFlow 1.12.0 only works with Python version 3.5.2. I had Python 3.7 but that didn't work. So, I had to downgrade Python and then I could install TensorFlow to make it work.

To downgrade your python version from 3.7 to 3.6

conda install python=3.6.8

Updated 11/28/2016: TensorFlow is now available in PyPI, starting with release 0.12. You can type

pip install tensorflow

...or...

pip install tensorflow-gpu

...to install the CPU-only or GPU-accelerated version of TensorFlow respectively.

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Previous answer: TensorFlow is not yet in the PyPI repository, so you have to specify the URL to the appropriate "wheel file" for your operating system and Python version.

The full list of supported configurations is listed on the TensorFlow website, but for example, to install version 0.10 for Python 2.7 on Linux, using CPU only, you would type the following command:

$ pip install https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-0.10.0rc0-cp27-none-linux_x86_64.whl