title: ERROR: Command errored out with exit status 1
body: <p>I tried:</p>
  
  <pre><code>pip3 install -r requirements.txt
  </code></pre>
  
  <p>Here's the error I received:</p>
  
  <pre><code> Command "python setup.py egg_info" failed with error code 1 in 
   C:\Users\Admin\AppData\Local\Temp\pip-install-6c3rea1s\pycocotools\
   You are using pip version 19.0.3, however version 20.0.2 is available.
   You should consider upgrading via the 'python -m pip install --upgrade pip'
   command.
  </code></pre>
  
  <p>So, I tried:</p>
  
  <pre><code>pip install --upgrade pip
  </code></pre>
  
  <p>and </p>
  
  <pre><code>install pip3 install -r requirements.txt
  </code></pre>
  
  <p>That resulted in more errors:</p>
  
  <pre><code> ERROR: Command errored out with exit status 1:      command:
   'c:\users\admin\appdata\local\programs\python\python37-32\python.exe'
   -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Admin\\AppData\\Local\\Temp\\pip-install-epmkeh4g\\pycocotools\\setup.py'"'"';
   __file__='"'"'C:\\Users\\Admin\\AppData\\Local\\Temp\\pip-install-epmkeh4g\\pycocotools\\setup.py'"'"';f=getattr(tokenize,
   '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
   '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))'
   egg_info --egg-base
   'C:\Users\Admin\AppData\Local\Temp\pip-install-epmkeh4g\pycocotools\pip-egg-info'
           cwd:
   C:\Users\Admin\AppData\Local\Temp\pip-install-epmkeh4g\pycocotools\
      Complete output (5 lines):  Traceback (most recent call last):   
   File "&lt;string&gt;", line 1, in &lt;module&gt;     File
   "C:\Users\Admin\AppData\Local\Temp\pip-install-epmkeh4g\pycocotools\setup.py",
   line 2, in &lt;module&gt;        from Cython.Build import cythonize
      ModuleNotFoundError: No module named 'Cython'
      ---------------------------------------- ERROR: Command errored out
   with exit status 1: python setup.py egg_info Check the logs for full
   command output.
  </code></pre>
  
  <p>I deleted the folder and re-install, but the results remained the same.</p>