title: Fail Installing pycrypto in python
body: <p>I have to install <code>pycrypto</code> for my python to communicate with firebase as it says it there is no module name 'Crypto' So that I have copied the </p>
  
  <pre><code>pip install pycrypto
  </code></pre>
  
  <p>Unluckily its failed.
  I dun know where is the problem. Even though I tried this code. </p>
  
  <pre><code>pip uninstall pycrypto
  
  </code></pre>
  
  <p>But it says:</p>
  
  <blockquote>
    <p>Skipping pycrypto as it is not installed</p>
  </blockquote>
  
  <p>During I install <code>pycrypto</code>, it's coming to these line.</p>
  
  <pre><code>C:\Users\User&gt;pip install pycrypto
  Collecting pycrypto
    Using cached https://files.pythonhosted.org/packages/60/db/645aa9af249f059cc3a368b118de33889219e0362141e75d4eaf6f80f163/pycrypto-2.6.1.tar.gz
  Installing collected packages: pycrypto
    Running setup.py install for pycrypto ... error
      Complete output from command d:\python\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\User\\AppData\\Local\\Temp\\pip-install-nprfhgy4\\pycrypto\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\User\AppData\Local\Temp\pip-record-njbcno6g\install-record.txt --single-version-externally-managed --compile:
      running install
      running build
      running build_py
      creating build
      creating build\lib.win32-3.7
      creating build\lib.win32-3.7\Crypto
      copying lib\Crypto\pct_warnings.py -&gt; build\lib.win32-3.7\Crypto
      copying lib\Crypto\__init__.py -&gt; build\lib.win32-3.7\Crypto
      creating build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\hashalgo.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\HMAC.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\MD2.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\MD4.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\MD5.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\RIPEMD.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA224.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA256.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA384.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA512.py -&gt; build\lib.win32-3.7\Crypto\Hash
      copying lib\Crypto\Hash\__init__.py -&gt; build\lib.win32-3.7\Crypto\Hash
      creating build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\AES.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\ARC2.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\ARC4.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\blockalgo.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\Blowfish.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\CAST.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\DES.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\DES3.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\PKCS1_OAEP.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\PKCS1_v1_5.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\XOR.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      copying lib\Crypto\Cipher\__init__.py -&gt; build\lib.win32-3.7\Crypto\Cipher
      creating build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\asn1.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\Counter.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\number.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\py3compat.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\randpool.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\RFC1751.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\winrandom.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\_number_new.py -&gt; build\lib.win32-3.7\Crypto\Util
      copying lib\Crypto\Util\__init__.py -&gt; build\lib.win32-3.7\Crypto\Util
      creating build\lib.win32-3.7\Crypto\Random
      copying lib\Crypto\Random\random.py -&gt; build\lib.win32-3.7\Crypto\Random
      copying lib\Crypto\Random\_UserFriendlyRNG.py -&gt; build\lib.win32-3.7\Crypto\Random
      copying lib\Crypto\Random\__init__.py -&gt; build\lib.win32-3.7\Crypto\Random
      creating build\lib.win32-3.7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\FortunaAccumulator.py -&gt; build\lib.win32-3.7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\FortunaGenerator.py -&gt; build\lib.win32-3.7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\SHAd256.py -&gt; build\lib.win32-3.7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\__init__.py -&gt; build\lib.win32-3.7\Crypto\Random\Fortuna
      creating build\lib.win32-3.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\fallback.py -&gt; build\lib.win32-3.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\nt.py -&gt; build\lib.win32-3.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\posix.py -&gt; build\lib.win32-3.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\rng_base.py -&gt; build\lib.win32-3.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\__init__.py -&gt; build\lib.win32-3.7\Crypto\Random\OSRNG
      creating build\lib.win32-3.7\Crypto\SelfTest
      copying lib\Crypto\SelfTest\st_common.py -&gt; build\lib.win32-3.7\Crypto\SelfTest
      copying lib\Crypto\SelfTest\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest
      creating build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\common.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_AES.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_ARC2.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_ARC4.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_Blowfish.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_CAST.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_DES.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_DES3.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_pkcs1_15.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_pkcs1_oaep.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_XOR.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Cipher
      creating build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\common.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_HMAC.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD2.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD4.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD5.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_RIPEMD.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA224.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA256.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA384.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA512.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Hash
      creating build\lib.win32-3.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_AllOrNothing.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_chaffing.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_KDF.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_rfc1751.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Protocol
      creating build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_DSA.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_ElGamal.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_importKey.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_RSA.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\PublicKey
      creating build\lib.win32-3.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test_random.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test_rpoolcompat.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test__UserFriendlyRNG.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random
      creating build\lib.win32-3.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaAccumulator.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaGenerator.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_SHAd256.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\Fortuna
      creating build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_fallback.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_generic.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_nt.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_posix.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_winrandom.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Random\OSRNG
      creating build\lib.win32-3.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_asn1.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_Counter.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_number.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_winrandom.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Util
      creating build\lib.win32-3.7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\test_pkcs1_15.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\test_pkcs1_pss.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\__init__.py -&gt; build\lib.win32-3.7\Crypto\SelfTest\Signature
      creating build\lib.win32-3.7\Crypto\Protocol
      copying lib\Crypto\Protocol\AllOrNothing.py -&gt; build\lib.win32-3.7\Crypto\Protocol
      copying lib\Crypto\Protocol\Chaffing.py -&gt; build\lib.win32-3.7\Crypto\Protocol
      copying lib\Crypto\Protocol\KDF.py -&gt; build\lib.win32-3.7\Crypto\Protocol
      copying lib\Crypto\Protocol\__init__.py -&gt; build\lib.win32-3.7\Crypto\Protocol
      creating build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\DSA.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\ElGamal.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\pubkey.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\RSA.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\_DSA.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\_RSA.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\_slowmath.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\__init__.py -&gt; build\lib.win32-3.7\Crypto\PublicKey
      creating build\lib.win32-3.7\Crypto\Signature
      copying lib\Crypto\Signature\PKCS1_PSS.py -&gt; build\lib.win32-3.7\Crypto\Signature
      copying lib\Crypto\Signature\PKCS1_v1_5.py -&gt; build\lib.win32-3.7\Crypto\Signature
      copying lib\Crypto\Signature\__init__.py -&gt; build\lib.win32-3.7\Crypto\Signature
      Skipping optional fixer: buffer
      Skipping optional fixer: idioms
      Skipping optional fixer: set_literal
      Skipping optional fixer: ws_comma
      running build_ext
      warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath.
      building 'Crypto.Random.OSRNG.winrandom' extension
      error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": https://visualstudio.microsoft.com/downloads/
  
      ----------------------------------------
  Command "d:\python\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\User\\AppData\\Local\\Temp\\pip-install-nprfhgy4\\pycrypto\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\User\AppData\Local\Temp\pip-record-njbcno6g\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\User\AppData\Local\Temp\pip-install-nprfhgy4\pycrypto\
  </code></pre>
  
  <p>I met this error when I trying to make python communicate with firebase. During I type import firebase, it coming there is no <code>modulename : Crypto</code> So that I have installed some module like <code>gcloud sseclient python_jwt</code> until the line 
  <code>from Crypto.PublicKey import RSA</code>
  I met this problem.</p>