title: Error 1 while installing pip package (pycrypto)
body: <p>I've been trying to install pycrypto. After getting this error, I tried to uninstall python 3.7 and install 3.6 as specified by a thread somewhere. This didn't make it any better. Please let me know how to resolve this. I'm on Windows 7, 64 bit, Python 3.6.</p>
  
  <pre><code>    ----------------------------------------
  Command "c:\users\admin\appdata\local\programs\python\python36\python.exe -u -c
  "import setuptools, tokenize;__file__='C:\\Users\\Admin\\AppData\\Local\\Temp\\p
  ip-install-lm9pf3lz\\pycrypto\\setup.py';f=getattr(tokenize, 'open', open)(__fil
  e__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__,
  'exec'))" install --record C:\Users\Admin\AppData\Local\Temp\pip-record-0pd9vdl0
  \install-record.txt --single-version-externally-managed --compile" failed with e
  rror code 1 in C:\Users\Admin\AppData\Local\Temp\pip-install-lm9pf3lz\pycrypto\
  </code></pre>