Can't install Keras

Question

I've been unable to install Keras inside of an Anaconda environment…

~$ pip install keras
pip install keras
Collecting keras
Collecting pyyaml (from keras)
  Using cached PyYAML-3.12.tar.gz
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info/PyYAML.egg-info
    writing top-level names to pip-egg-info/PyYAML.egg-info/top_level.txt
    writing dependency_links to pip-egg-info/PyYAML.egg-info/dependency_links.txt
    writing pip-egg-info/PyYAML.egg-info/PKG-INFO
    writing manifest file 'pip-egg-info/PyYAML.egg-info/SOURCES.txt'
    warning: manifest_maker: standard file '-c' not found

    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-b74rx7yf/pyyaml/setup.py", line 339, in <module>
        cmdclass=cmdclass,
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/distutils/core.py", line 148, in setup
        dist.run_commands()
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/distutils/dist.py", line 955, in run_commands
        self.run_command(cmd)
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/distutils/dist.py", line 974, in run_command
        cmd_obj.run()
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/egg_info.py", line 279, in run
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/egg_info.py", line 306, in find_sources
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/egg_info.py", line 533, in run
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/egg_info.py", line 562, in add_defaults
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/py36compat.py", line 36, in add_defaults
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/setuptools-28.7.1-py3.5.egg/setuptools/command/py36compat.py", line 119, in _add_defaults_ext
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/distutils/cmd.py", line 299, in get_finalized_command
        cmd_obj.ensure_finalized()
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/distutils/cmd.py", line 107, in ensure_finalized
        self.finalize_options()
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/Cython/Distutils/build_ext.py", line 19, in finalize_options
        self.distribution.ext_modules)
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/Cython/Build/Dependencies.py", line 809, in cythonize
        aliases=aliases)
      File "/home/bee/anaconda3/envs/roar/lib/python3.5/site-packages/Cython/Build/Dependencies.py", line 752, in create_extension_list
        **kwds))
    TypeError: __init__() missing 3 required positional arguments: 'feature_name', 'feature_description', and 'feature_check'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-b74rx7yf/pyyaml/

I've tried some of the usual suspects:

pip install --upgrade pip
pip install --upgrade setuptools

And I also tried most of the solutions here, but still no luck.

As an aside, I can install Keras fine when not in the conda env.

Any help would be appreciated.

Answer 1

Thanks the support guys!

For whatever reason my conda env was stuck on setuptools-27 even after running

pip install --upgrade setuptools

However, running

pip install --upgrade setuptools --ignore-installed

Got my env up to setuptools-28.8.0 and now have no Keras issues

Answer 2

I have several setups using Anaconda and I use :

conda install -y tensorflow
pip install --upgrade --no-deps git+git://github.com/fchollet/keras.git

TensorFlow is now the default backend for Keras, so I have to install it, and using the bleeding edge / repository version is often recommended.