Can't install Keras 1.1 on anaconda

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Using Anaconda 2.2.0 I'm trying to install an older version of Keras, specifically 1.1.0.

So far I've just put in anaconda prompt conda install keras=1.1.0 but I've been getting the following error.

PackagesNotFoundError: The following packages are not available from current channels:

  - keras=1.1.0

Current channels:

  - https://repo.anaconda.com/pkgs/main/win-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/win-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://repo.anaconda.com/pkgs/msys2/win-64
  - https://repo.anaconda.com/pkgs/msys2/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

Does anyone know if it's possible to install keras 1 on Anaconda? Is it safe to use pip install?

conda keras
1 Answers

There are no available candidates (for win64) in the default channels and also not in the free channel.

Is it "safe" to use pip?

You can find a good blog post from anaconda on the topic. The gist is: You can do it, but take care. For Anaconda, I would always suggest to not mess with the base env in any way. If you create a new env, install everything that you need besides keras and then pip install keras=1.1 you should be fine. You can even do it using an environment.yml file like this (I added six, theano and pyyaml as they are dependencies of keras:

name: keras
channels:
  - defaults
dependencies:
  - python
  - theano
  - six
  - pyyaml
  - pip
  - pip:
    - keras==1.1

Simply create the env and then use it by activating

conda env create -f environment.yml
conda activate keras
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