title: Installing CPLEX on Anaconda
body: <p>Trying to install CPLEX to use for optimisation. This is what happens:</p>
  <pre><code>conda install -c ibmdecisionoptimization cplex
  Collecting package metadata (current_repodata.json): done
  Solving environment: failed with initial frozen solve. Retrying with flexible solve.
  Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
  Collecting package metadata (repodata.json): done
  Solving environment: failed with initial frozen solve. Retrying with flexible solve.
  Solving environment: |
  Found conflicts! Looking for incompatible packages.
  This can take several minutes.  Press CTRL-C to abort.
  failed
  
  UnsatisfiableError: The following specifications were found
  to be incompatible with the existing python installation in your environment:
  
  Specifications:
  
    - cplex -&gt; python[version='2.7.*|3.5.*|&gt;=2.7,&lt;2.8.0a0|&gt;=3.6,&lt;3.7.0a0|&gt;=3.7,&lt;3.8.0a0|&gt;=3.5,&lt;3.6.0a0']
  
  Your python: python=3.8
  
  If python is on the left-most side of the chain, that's the version you've asked for.
  When python appears to the right, that indicates that the thing on the left is somehow
  not available for the python version you are constrained to. Note that conda will not
  change your python version to a different minor version unless you explicitly specify
  that.
  </code></pre>
  <p>So I guess I have the wrong version of Python installed. How do I change this?</p>
  <p>Also, is this the correct way of using it in code?</p>
  <pre><code>import pulp
  import cplex
  prob.solve(pulp.CPLEX_CMD())
  </code></pre>