title: Failed installing pycrypto with pip
body: <p>I encountered a problem when I try to download a certain package:</p>
  
  <pre><code>C:\Python27\Scripts&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 c:\python27\python.exe -u -c "import setuptools
  , tokenize;__file__='c:\\users\\beheer~1\\appdata\\local\\temp\\pip-install-_luv
  op\\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\beheer~1\appdata\local\temp\pip-record-jct20j\install-record.
  txt --single-version-externally-managed --compile:
      running install
      running build
      running build_py
      creating build
      creating build\lib.win32-2.7
      creating build\lib.win32-2.7\Crypto
      copying lib\Crypto\pct_warnings.py -&gt; build\lib.win32-2.7\Crypto
      copying lib\Crypto\__init__.py -&gt; build\lib.win32-2.7\Crypto
      creating build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\hashalgo.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\HMAC.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\MD2.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\MD4.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\MD5.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\RIPEMD.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA224.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA256.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA384.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\SHA512.py -&gt; build\lib.win32-2.7\Crypto\Hash
      copying lib\Crypto\Hash\__init__.py -&gt; build\lib.win32-2.7\Crypto\Hash
      creating build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\AES.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\ARC2.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\ARC4.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\blockalgo.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\Blowfish.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\CAST.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\DES.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\DES3.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\PKCS1_OAEP.py -&gt; build\lib.win32-2.7\Crypto\Cipher
  
      copying lib\Crypto\Cipher\PKCS1_v1_5.py -&gt; build\lib.win32-2.7\Crypto\Cipher
  
      copying lib\Crypto\Cipher\XOR.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      copying lib\Crypto\Cipher\__init__.py -&gt; build\lib.win32-2.7\Crypto\Cipher
      creating build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\asn1.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\Counter.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\number.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\py21compat.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\py3compat.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\randpool.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\RFC1751.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\winrandom.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\_number_new.py -&gt; build\lib.win32-2.7\Crypto\Util
      copying lib\Crypto\Util\__init__.py -&gt; build\lib.win32-2.7\Crypto\Util
      creating build\lib.win32-2.7\Crypto\Random
      copying lib\Crypto\Random\random.py -&gt; build\lib.win32-2.7\Crypto\Random
      copying lib\Crypto\Random\_UserFriendlyRNG.py -&gt; build\lib.win32-2.7\Crypto\
  Random
      copying lib\Crypto\Random\__init__.py -&gt; build\lib.win32-2.7\Crypto\Random
      creating build\lib.win32-2.7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\FortunaAccumulator.py -&gt; build\lib.win32-2
  .7\Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\FortunaGenerator.py -&gt; build\lib.win32-2.7
  \Crypto\Random\Fortuna
      copying lib\Crypto\Random\Fortuna\SHAd256.py -&gt; build\lib.win32-2.7\Crypto\R
  andom\Fortuna
      copying lib\Crypto\Random\Fortuna\__init__.py -&gt; build\lib.win32-2.7\Crypto\
  Random\Fortuna
      creating build\lib.win32-2.7\Crypto\Random\OSRNG
      copying lib\Crypto\Random\OSRNG\fallback.py -&gt; build\lib.win32-2.7\Crypto\Ra
  ndom\OSRNG
      copying lib\Crypto\Random\OSRNG\nt.py -&gt; build\lib.win32-2.7\Crypto\Random\O
  SRNG
      copying lib\Crypto\Random\OSRNG\posix.py -&gt; build\lib.win32-2.7\Crypto\Rando
  m\OSRNG
      copying lib\Crypto\Random\OSRNG\rng_base.py -&gt; build\lib.win32-2.7\Crypto\Ra
  ndom\OSRNG
      copying lib\Crypto\Random\OSRNG\__init__.py -&gt; build\lib.win32-2.7\Crypto\Ra
  ndom\OSRNG
      creating build\lib.win32-2.7\Crypto\SelfTest
      copying lib\Crypto\SelfTest\st_common.py -&gt; build\lib.win32-2.7\Crypto\SelfT
  est
      copying lib\Crypto\SelfTest\__init__.py -&gt; build\lib.win32-2.7\Crypto\SelfTe
  st
      creating build\lib.win32-2.7\Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\common.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_AES.py -&gt; build\lib.win32-2.7\Crypto
  \SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_ARC2.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_ARC4.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_Blowfish.py -&gt; build\lib.win32-2.7\C
  rypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_CAST.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_DES.py -&gt; build\lib.win32-2.7\Crypto
  \SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_DES3.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_pkcs1_15.py -&gt; build\lib.win32-2.7\C
  rypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_pkcs1_oaep.py -&gt; build\lib.win32-2.7
  \Crypto\SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\test_XOR.py -&gt; build\lib.win32-2.7\Crypto
  \SelfTest\Cipher
      copying lib\Crypto\SelfTest\Cipher\__init__.py -&gt; build\lib.win32-2.7\Crypto
  \SelfTest\Cipher
      creating build\lib.win32-2.7\Crypto\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\common.py -&gt; build\lib.win32-2.7\Crypto\Sel
  fTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_HMAC.py -&gt; build\lib.win32-2.7\Crypto\
  SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD2.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD4.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_MD5.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_RIPEMD.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA224.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA256.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA384.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\test_SHA512.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Hash
      copying lib\Crypto\SelfTest\Hash\__init__.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Hash
      creating build\lib.win32-2.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_AllOrNothing.py -&gt; build\lib.win32
  -2.7\Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_chaffing.py -&gt; build\lib.win32-2.7
  \Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_KDF.py -&gt; build\lib.win32-2.7\Cryp
  to\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\test_rfc1751.py -&gt; build\lib.win32-2.7\
  Crypto\SelfTest\Protocol
      copying lib\Crypto\SelfTest\Protocol\__init__.py -&gt; build\lib.win32-2.7\Cryp
  to\SelfTest\Protocol
      creating build\lib.win32-2.7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_DSA.py -&gt; build\lib.win32-2.7\Cry
  pto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_ElGamal.py -&gt; build\lib.win32-2.7
  \Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_importKey.py -&gt; build\lib.win32-2
  .7\Crypto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\test_RSA.py -&gt; build\lib.win32-2.7\Cry
  pto\SelfTest\PublicKey
      copying lib\Crypto\SelfTest\PublicKey\__init__.py -&gt; build\lib.win32-2.7\Cry
  pto\SelfTest\PublicKey
      creating build\lib.win32-2.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test_random.py -&gt; build\lib.win32-2.7\Cry
  pto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test_rpoolcompat.py -&gt; build\lib.win32-2.
  7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\test__UserFriendlyRNG.py -&gt; build\lib.win
  32-2.7\Crypto\SelfTest\Random
      copying lib\Crypto\SelfTest\Random\__init__.py -&gt; build\lib.win32-2.7\Crypto
  \SelfTest\Random
      creating build\lib.win32-2.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaAccumulator.py -&gt; bui
  ld\lib.win32-2.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaGenerator.py -&gt; build
  \lib.win32-2.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\test_SHAd256.py -&gt; build\lib.win3
  2-2.7\Crypto\SelfTest\Random\Fortuna
      copying lib\Crypto\SelfTest\Random\Fortuna\__init__.py -&gt; build\lib.win32-2.
  7\Crypto\SelfTest\Random\Fortuna
      creating build\lib.win32-2.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_fallback.py -&gt; build\lib.win32
  -2.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_generic.py -&gt; build\lib.win32-
  2.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_nt.py -&gt; build\lib.win32-2.7\C
  rypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_posix.py -&gt; build\lib.win32-2.
  7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\test_winrandom.py -&gt; build\lib.win3
  2-2.7\Crypto\SelfTest\Random\OSRNG
      copying lib\Crypto\SelfTest\Random\OSRNG\__init__.py -&gt; build\lib.win32-2.7\
  Crypto\SelfTest\Random\OSRNG
      creating build\lib.win32-2.7\Crypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_asn1.py -&gt; build\lib.win32-2.7\Crypto\
  SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_Counter.py -&gt; build\lib.win32-2.7\Cryp
  to\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_number.py -&gt; build\lib.win32-2.7\Crypt
  o\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\test_winrandom.py -&gt; build\lib.win32-2.7\Cr
  ypto\SelfTest\Util
      copying lib\Crypto\SelfTest\Util\__init__.py -&gt; build\lib.win32-2.7\Crypto\S
  elfTest\Util
      creating build\lib.win32-2.7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\test_pkcs1_15.py -&gt; build\lib.win32-2.
  7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\test_pkcs1_pss.py -&gt; build\lib.win32-2
  .7\Crypto\SelfTest\Signature
      copying lib\Crypto\SelfTest\Signature\__init__.py -&gt; build\lib.win32-2.7\Cry
  pto\SelfTest\Signature
      creating build\lib.win32-2.7\Crypto\Protocol
      copying lib\Crypto\Protocol\AllOrNothing.py -&gt; build\lib.win32-2.7\Crypto\Pr
  otocol
      copying lib\Crypto\Protocol\Chaffing.py -&gt; build\lib.win32-2.7\Crypto\Protoc
  ol
      copying lib\Crypto\Protocol\KDF.py -&gt; build\lib.win32-2.7\Crypto\Protocol
      copying lib\Crypto\Protocol\__init__.py -&gt; build\lib.win32-2.7\Crypto\Protoc
  ol
      creating build\lib.win32-2.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\DSA.py -&gt; build\lib.win32-2.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\ElGamal.py -&gt; build\lib.win32-2.7\Crypto\Public
  Key
      copying lib\Crypto\PublicKey\pubkey.py -&gt; build\lib.win32-2.7\Crypto\PublicK
  ey
      copying lib\Crypto\PublicKey\RSA.py -&gt; build\lib.win32-2.7\Crypto\PublicKey
      copying lib\Crypto\PublicKey\_DSA.py -&gt; build\lib.win32-2.7\Crypto\PublicKey
  
      copying lib\Crypto\PublicKey\_RSA.py -&gt; build\lib.win32-2.7\Crypto\PublicKey
  
      copying lib\Crypto\PublicKey\_slowmath.py -&gt; build\lib.win32-2.7\Crypto\Publ
  icKey
      copying lib\Crypto\PublicKey\__init__.py -&gt; build\lib.win32-2.7\Crypto\Publi
  cKey
      creating build\lib.win32-2.7\Crypto\Signature
      copying lib\Crypto\Signature\PKCS1_PSS.py -&gt; build\lib.win32-2.7\Crypto\Sign
  ature
      copying lib\Crypto\Signature\PKCS1_v1_5.py -&gt; build\lib.win32-2.7\Crypto\Sig
  nature
      copying lib\Crypto\Signature\__init__.py -&gt; build\lib.win32-2.7\Crypto\Signa
  ture
      running build_ext
      warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastm
  ath.
      building 'Crypto.Random.OSRNG.winrandom' extension
      error: Microsoft Visual C++ 9.0 is required. Get it from http://aka.ms/vcpyt
  hon27
  
  
  ----------------------------------------
  Command "c:\python27\python.exe -u -c "import setuptools, 
  tokenize;__file__='c:\
  \users\\beheer~1\\appdata\\local\\temp\\pip-install- 
  _luvop\\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\behee
  r~1\appdata\local\temp\pip-record-jct20j\install-record.txt --single- 
  version-ext
  ernally-managed --compile" failed with error code 1 in 
  c:\users\beheer~1\appdata
  \local\temp\pip-install-_luvop\pycrypto\
  </code></pre>
  
  <p>I already tried this command:</p>
  
  <pre><code>    pip install --upgrade setuptools
  </code></pre>
  
  <p>And this still didnt work.</p>