title: Pip error: Microsoft Visual C++ 14.0 is required
body: <p>I just ran the following command:</p>
  <pre><code>pip install -U steem
  </code></pre>
  <p>and the installation worked well until it failed to install <code>pycrypto</code>.
  Afterwards I did the</p>
  <pre><code>pip install cryptography
  </code></pre>
  <p>command because I thought it was the missing package.
  So my question is, how I can install <code>steem</code> without the pycrypto-error (or the pycrypto-package in addition) and how to uninstall the cryptography-Package which I don't need.
  (I'm using Windows 7 and Python 3)</p>
  <pre><code>Requirement already up-to-date: python-dateutil in c:\users\***\appdata\lo
  cal\programs\python\python36\lib\site-packages (from dateparser-&gt;maya-&gt;steem)
  ...
  Installing collected packages: urllib3, idna, chardet, certifi, requests, pycryp
  to, funcy, w3lib, voluptuous, diff-match-patch, scrypt, prettytable, appdirs, la
  ngdetect, ruamel.yaml, humanize, tzlocal, regex, dateparser, pytzdata, pendulum,
  maya, ecdsa, pylibscrypt, ujson, toolz, steem
  Running setup.py install for pycrypto ... error
  Complete output from command c:\users\***\appdata\local\programs\pytho
  n\python36\python.exe -u -c &quot;import setuptools, tokenize;__file__='C:\\Users\\
  ***~1\\AppData\\Local\\Temp\\pip-build-k6flhu5k\\pycrypto\\setup.py';f=getattr(
  tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();
  exec(compile(code, __file__, 'exec'))&quot; install --record C:\Users\***N~1\AppDat
  a\Local\Temp\pip-igpkll6u-record\install-record.txt --single-version-externally-
  managed --compile:
  running install
  running build
  running build_py
  ...
  building 'Crypto.Random.OSRNG.winrandom' extension
  error: Microsoft Visual C++ 14.0 is required. Get it with &quot;Microsoft Visual
  C++ Build Tools&quot;: http://landinghub.visualstudio.com/visual-cpp-build-tools
  
  ----------------------------------------
  Command &quot;c:\users\***\appdata\local\programs\python\python36\python.exe -u
  -c &quot;import setuptools, tokenize;__file__='C:\\Users\\***N~1\\AppData\\Local\\
  Temp\\pip-build-k6flhu5k\\pycrypto\\setup.py';f=getattr(tokenize, 'open', open)(
  __file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code,   __fil
  e__, 'exec'))&quot; install --record C:\Users\***N~1\AppData\Local\Temp\pip-igpkll6
  u-record\install-record.txt --single-version-externally-managed --compile&quot;   faile
  d with error code 1 in C:\Users\***N~1\AppData\Local\Temp\pip-build-    k6flhu5k\p
  ycrypto\
  </code></pre>