title: Installing pip is not working in python < 3.6
body: <p>I am starting to make a app using bitbucket CI and i am using the following steps to deploy the application and the steps to install pip is failing.</p>
  <pre><code> script:
      - apt-get update
      - apt-get install -y python-dev
      - curl -O https://bootstrap.pypa.io/get-pip.py
      - python get-pip.py
      ... and a few more steps
  </code></pre>
  <p>Dont know why but <code>python get-pip.py</code> step fails with the following error.</p>
  <pre><code>Traceback (most recent call last):
    File &quot;get-pip.py&quot;, line 24226, in &lt;module&gt;
      main()
    File &quot;get-pip.py&quot;, line 199, in main
      bootstrap(tmpdir=tmpdir)
    File &quot;get-pip.py&quot;, line 82, in bootstrap
      from pip._internal.cli.main import main as pip_entry_point
    File &quot;/tmp/tmpUgc5ng/pip.zip/pip/_internal/cli/main.py&quot;, line 60
      sys.stderr.write(f&quot;ERROR: {exc}&quot;)
                                     ^
  
  SyntaxError: invalid syntax
  
  </code></pre>
  <p>This worked fine upto yesterday. Not sure why this is not working now.</p>
  <p>I thought it may be because of windows but i checked in my local machine running linux but these steps but they worked fine.</p>