Python 上的 Tensorflow 64 位版本不工作

Question

I have installed Python 3.9.1 and also installed a lot of packages, like sklearn, selenium, etc., but I am failing to install tensorflow. When I type in pip install tensorflow an error is thrown:

ERROR: Could not find a version that satisfies the requirement tensorflow (from versions: none) ERROR: No matching distribution found for tensorflow

I read that I need to have the 64bit-Version of Python installed. I checked it using:

import sys
print(sys.maxsize > 2**32)

which returned True , what means I am using the 64bit-Version. So why am I still getting this error? And why do I get this error only with tensorflow?

Answer 1

TensorFlow pip packages are compatible with Python 3.5–3.8 and not with Python 3.9 as of yet, this thread covers the discussion on the release date of a compatible version. Therefore you would have to downgrade your Python version to one that is supported.

Edit:

To setup the conda environment with tensorflow and the correct version of Python

conda create -n env_name python=3.8
conda activate env_name
conda install pandas scikit-learn matplotlib notebook ##installing usual Data Science packages that does include numpy and scipy 
pip install tensorflow
python -c "import tensorflow as tf;print(tf.__version__)" ##checks tf version