title: python pip install "mkl-fft" could not install
body: <p>I tried &quot;pip install mkl-fft&quot;
  but could not finish.</p>
  <pre><code>ERROR: Could not find a version that satisfies the requirement mkl-fft (from -r requirements.txt (line 11)) (from versions: none)
  ERROR: No matching distribution found for mkl-fft (from -r requirements.txt (line 11))
  </code></pre>
  <p>my env is</p>
  <pre><code>conda create -n myenv1 python=3.5
  python -m pip install --upgrade pip
  </code></pre>
  <p>now pip ver is &quot;20.1.1&quot;</p>
  <p>Further, I tried python 3.7.
  I can`t install too.</p>
  <p>do you have any Idea?
  thank you.</p>