error: command 'C:\\Users\\Mrchang\\AppData\\Local\\Programs\\Common\\Microsoft\\Visual C++ for Pyt

安装scrapy异常解决办法：

set STATICBUILD=true && pip install lxml

异常信息：

Collecting Scrapy==1.1.1
  Downloading Scrapy-1.1.1-py2.py3-none-any.whl (295kB)
Collecting service-identity (from Scrapy==1.1.1)
  Using cached service_identity-16.0.0-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): cssselect>=0.9 in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): queuelib in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): lxml in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Collecting pyOpenSSL (from Scrapy==1.1.1)
  Using cached pyOpenSSL-16.1.0-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): w3lib>=1.14.2 in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): six>=1.5.2 in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Collecting parsel>=0.9.3 (from Scrapy==1.1.1)
  Using cached parsel-1.0.3-py2.py3-none-any.whl
Collecting PyDispatcher>=2.0.5 (from Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): Twisted>=10.0.0 in c:\python27\lib\site-packages (from Scrapy==1.1.1)
Collecting pyasn1-modules (from service-identity->Scrapy==1.1.1)
  Using cached pyasn1_modules-0.0.8-py2.py3-none-any.whl
Collecting attrs (from service-identity->Scrapy==1.1.1)
  Using cached attrs-16.2.0-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): pyasn1 in c:\python27\lib\site-packages (from service-identity->Scrapy==1.1.1)
Collecting cryptography>=1.3.4 (from pyOpenSSL->Scrapy==1.1.1)
  Using cached cryptography-1.5.tar.gz
Requirement already satisfied (use --upgrade to upgrade): zope.interface>=3.6.0 in c:\python27\lib\site-packages (from Twisted>=10.0.0->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): idna>=2.0 in c:\python27\lib\site-packages (from cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): setuptools>=11.3 in c:\python27\lib\site-packages (from cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): enum34 in c:\python27\lib\site-packages (from cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): ipaddress in c:\python27\lib\site-packages (from cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): cffi>=1.4.1 in c:\python27\lib\site-packages (from cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Requirement already satisfied (use --upgrade to upgrade): pycparser in c:\python27\lib\site-packages (from cffi>=1.4.1->cryptography>=1.3.4->pyOpenSSL->Scrapy==1.1.1)
Building wheels for collected packages: cryptography
  Running setup.py bdist_wheel for cryptography
  Complete output from command C:\Python27\python.exe -c "import setuptools;__file__='C:\\Users\\Mrchang\\AppData\\Local\\Temp\\pycharm-packaging\\cryptography\\setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d c:\users\mrchang\appdata\local\temp\tmpdtin73pip-wheel-:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win32-2.7
  creating build\lib.win32-2.7\cryptography
  copying src\cryptography\exceptions.py -> build\lib.win32-2.7\cryptography
  copying src\cryptography\fernet.py -> build\lib.win32-2.7\cryptography
  copying src\cryptography\utils.py -> build\lib.win32-2.7\cryptography
  copying src\cryptography\__about__.py -> build\lib.win32-2.7\cryptography
  copying src\cryptography\__init__.py -> build\lib.win32-2.7\cryptography
  creating build\lib.win32-2.7\cryptography\hazmat
  copying src\cryptography\hazmat\__init__.py -> build\lib.win32-2.7\cryptography\hazmat
  creating build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\base.py -> build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\extensions.py -> build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\general_name.py -> build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\name.py -> build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\oid.py -> build\lib.win32-2.7\cryptography\x509
  copying src\cryptography\x509\__init__.py -> build\lib.win32-2.7\cryptography\x509
  creating build\lib.win32-2.7\cryptography\hazmat\backends
  copying src\cryptography\hazmat\backends\interfaces.py -> build\lib.win32-2.7\cryptography\hazmat\backends
  copying src\cryptography\hazmat\backends\multibackend.py -> build\lib.win32-2.7\cryptography\hazmat\backends
  copying src\cryptography\hazmat\backends\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\backends
  creating build\lib.win32-2.7\cryptography\hazmat\bindings
  copying src\cryptography\hazmat\bindings\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\bindings
  creating build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\cmac.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\constant_time.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\hashes.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\hmac.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\keywrap.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\padding.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\serialization.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  copying src\cryptography\hazmat\primitives\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives
  creating build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  copying src\cryptography\hazmat\backends\commoncrypto\backend.py -> build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  copying src\cryptography\hazmat\backends\commoncrypto\ciphers.py -> build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  copying src\cryptography\hazmat\backends\commoncrypto\hashes.py -> build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  copying src\cryptography\hazmat\backends\commoncrypto\hmac.py -> build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  copying src\cryptography\hazmat\backends\commoncrypto\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\backends\commoncrypto
  creating build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\backend.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\ciphers.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\cmac.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\decode_asn1.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\dsa.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\ec.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\encode_asn1.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\hashes.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\hmac.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\rsa.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\utils.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\x509.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  copying src\cryptography\hazmat\backends\openssl\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\backends\openssl
  creating build\lib.win32-2.7\cryptography\hazmat\bindings\commoncrypto
  copying src\cryptography\hazmat\bindings\commoncrypto\binding.py -> build\lib.win32-2.7\cryptography\hazmat\bindings\commoncrypto
  copying src\cryptography\hazmat\bindings\commoncrypto\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\bindings\commoncrypto
  creating build\lib.win32-2.7\cryptography\hazmat\bindings\openssl
  copying src\cryptography\hazmat\bindings\openssl\binding.py -> build\lib.win32-2.7\cryptography\hazmat\bindings\openssl
  copying src\cryptography\hazmat\bindings\openssl\_conditional.py -> build\lib.win32-2.7\cryptography\hazmat\bindings\openssl
  copying src\cryptography\hazmat\bindings\openssl\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\bindings\openssl
  creating build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\dh.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\dsa.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\ec.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\padding.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\rsa.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\utils.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  copying src\cryptography\hazmat\primitives\asymmetric\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\asymmetric
  creating build\lib.win32-2.7\cryptography\hazmat\primitives\ciphers
  copying src\cryptography\hazmat\primitives\ciphers\algorithms.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\ciphers
  copying src\cryptography\hazmat\primitives\ciphers\base.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\ciphers
  copying src\cryptography\hazmat\primitives\ciphers\modes.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\ciphers
  copying src\cryptography\hazmat\primitives\ciphers\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\ciphers
  creating build\lib.win32-2.7\cryptography\hazmat\primitives\interfaces
  copying src\cryptography\hazmat\primitives\interfaces\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\interfaces
  creating build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\concatkdf.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\hkdf.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\kbkdf.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\pbkdf2.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\x963kdf.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  copying src\cryptography\hazmat\primitives\kdf\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\kdf
  creating build\lib.win32-2.7\cryptography\hazmat\primitives\twofactor
  copying src\cryptography\hazmat\primitives\twofactor\hotp.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\twofactor
  copying src\cryptography\hazmat\primitives\twofactor\totp.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\twofactor
  copying src\cryptography\hazmat\primitives\twofactor\utils.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\twofactor
  copying src\cryptography\hazmat\primitives\twofactor\__init__.py -> build\lib.win32-2.7\cryptography\hazmat\primitives\twofactor
  running egg_info
  writing requirements to src\cryptography.egg-info\requires.txt
  writing src\cryptography.egg-info\PKG-INFO
  writing top-level names to src\cryptography.egg-info\top_level.txt
  writing dependency_links to src\cryptography.egg-info\dependency_links.txt
  writing entry points to src\cryptography.egg-info\entry_points.txt
  warning: manifest_maker: standard file '-c' not found
  
  reading manifest file 'src\cryptography.egg-info\SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  no previously-included directories found matching 'docs\_build'
  warning: no previously-included files matching '*' found under directory 'vectors'
  writing manifest file 'src\cryptography.egg-info\SOURCES.txt'
  warning: build_py: byte-compiling is disabled, skipping.
  
  running build_ext
  generating cffi module 'build\\temp.win32-2.7\\Release\\_padding.c'
  creating build\temp.win32-2.7
  creating build\temp.win32-2.7\Release
  generating cffi module 'build\\temp.win32-2.7\\Release\\_constant_time.c'
  generating cffi module 'build\\temp.win32-2.7\\Release\\_openssl.c'
  building '_openssl' extension
  creating build\temp.win32-2.7\Release\build
  creating build\temp.win32-2.7\Release\build\temp.win32-2.7
  creating build\temp.win32-2.7\Release\build\temp.win32-2.7\Release
  C:\Users\Mrchang\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -IC:\Python27\include -IC:\Python27\PC /Tcbuild\temp.win32-2.7\Release\_openssl.c /Fobuild\temp.win32-2.7\Release\build\temp.win32-2.7\Release\_openssl.obj
  _openssl.c
  build\temp.win32-2.7\Release\_openssl.c(433) : fatal error C1083: Cannot open include file: 'openssl/opensslv.h': No such file or directory
  error: command 'C:\\Users\\Mrchang\\AppData\\Local\\Programs\\Common\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2
  
  ----------------------------------------
Failed to build cryptography
Installing collected packages: cryptography, pyOpenSSL, pyasn1-modules, attrs, service-identity, parsel, PyDispatcher, Scrapy
  Running setup.py install for cryptography
    Complete output from command C:\Python27\python.exe -c "import setuptools, tokenize;__file__='C:\\Users\\Mrchang\\AppData\\Local\\Temp\\pycharm-packaging\\cryptography\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\mrchang\appdata\local\temp\pip-0ade5u-record\install-record.txt --single-version-externally-managed --compile --user --prefix=:
    running install
    running build
    running build_py
    running egg_info
    writing requirements to src\cryptography.egg-info\requires.txt
    writing src\cryptography.egg-info\PKG-INFO
    writing top-level names to src\cryptography.egg-info\top_level.txt
    writing dependency_links to src\cryptography.egg-info\dependency_links.txt
    writing entry points to src\cryptography.egg-info\entry_points.txt
    warning: manifest_maker: standard file '-c' not found
    
    reading manifest file 'src\cryptography.egg-info\SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    no previously-included directories found matching 'docs\_build'
    warning: no previously-included files matching '*' found under directory 'vectors'
    writing manifest file 'src\cryptography.egg-info\SOURCES.txt'
    warning: build_py: byte-compiling is disabled, skipping.
    
    running build_ext
    generating cffi module 'build\\temp.win32-2.7\\Release\\_padding.c'
    already up-to-date
    generating cffi module 'build\\temp.win32-2.7\\Release\\_constant_time.c'
    already up-to-date
    generating cffi module 'build\\temp.win32-2.7\\Release\\_openssl.c'
    already up-to-date
    building '_openssl' extension
    C:\Users\Mrchang\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -IC:\Python27\include -IC:\Python27\PC /Tcbuild\temp.win32-2.7\Release\_openssl.c /Fobuild\temp.win32-2.7\Release\build\temp.win32-2.7\Release\_openssl.obj
    _openssl.c
    build\temp.win32-2.7\Release\_openssl.c(433) : fatal error C1083: Cannot open include file: 'openssl/opensslv.h': No such file or directory
    error: command  cl.exe failed with exit status 2
    
    ----------------------------------------


  Failed building wheel for cryptography
Command "C:\Python27\python.exe -c "import setuptools, tokenize;__file__='C:\\Users\\Mrchang\\AppData\\Local\\Temp\\pycharm-packaging\\cryptography\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\mrchang\appdata\local\temp\pip-0ade5u-record\install-record.txt --single-version-externally-managed --compile --user --prefix=" failed with error code 1 in C:\Users\Mrchang\AppData\Local\Temp\pycharm-packaging\cryptography
You are using pip version 7.1.2, however version 8.1.2 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.