Problema do OpenSSL ao instalar o scrapy no Python no Windows

Question

Eu mudei para instaladores de 32 bits para Python Scrapy (após a falha na instalação dos instaladores de 64 bits para o trabalho escravo funcionar). Seguiu os passos mencionados aqui .

Este é o log quando eu executo o easy_install on scrapy :

Searching for scrapy
Best match: scrapy 0.22.0
Processing scrapy-0.22.0-py2.7.egg
scrapy 0.22.0 is already the active version in easy-install.pth
Installing scrapy script to C:\Python27\Scripts
Installing scrapy.bat script to C:\Python27\Scripts

Using c:\python27\lib\site-packages\scrapy-0.22.0-py2.7.egg
Processing dependencies for scrapy
Searching for cryptography>=0.1
Reading http://pypi.python.org/simple/cryptography/
Best match: cryptography 0.1
Downloading https://pypi.python.org/packages/source/c/cryptography/cryptography-
0.1.tar.gz#md5=bdc1c5fe069deca7467b71a0cc538f17
Processing cryptography-0.1.tar.gz
Running cryptography-0.1\setup.py -q bdist_egg --dist-dir c:\users\faizan\appdat
a\local\temp\easy_install-myikuq\cryptography-0.1\egg-dist-tmp-vfydke
Searching for cffi>=0.6
Reading http://pypi.python.org/simple/cffi/
Best match: cffi 0.8.1
Downloading https://pypi.python.org/packages/source/c/cffi/cffi-0.8.1.tar.gz#md5
=1a877bf113bfe90fdefedbf9e39310d2
Processing cffi-0.8.1.tar.gz
Running cffi-0.8.1\setup.py -q bdist_egg --dist-dir c:\users\faizan\appdata\loca
l\temp\easy_install-myikuq\cryptography-0.1\temp\easy_install-zoguzs\cffi-0.8.1\
egg-dist-tmp-trop2u
_cffi_backend.c
c/_cffi_backend.c(5261) : warning C4146: unary minus operator applied to unsigne
d type, result still unsigned
c/_cffi_backend.c(5262) : warning C4146: unary minus operator applied to unsigne
d type, result still unsigned
c/_cffi_backend.c(5263) : warning C4146: unary minus operator applied to unsigne
d type, result still unsigned
c/_cffi_backend.c(5264) : warning C4146: unary minus operator applied to unsigne
d type, result still unsigned
ffi.c
c/libffi_msvc\ffi.c(122) : warning C4018: '>' : signed/unsigned mismatch
prep_cif.c
types.c
win32.c

Creating library build\temp.win32-2.7\Release\c\_cffi_backend.lib and object
build\temp.win32-2.7\Release\c\_cffi_backend.exp

Installed c:\users\faizan\appdata\local\temp\easy_install-myikuq\cryptography-0.
1\cffi-0.8.1-py2.7-win32.egg
Searching for pycparser
Reading http://pypi.python.org/simple/pycparser/
Best match: pycparser 2.10
Downloading https://pypi.python.org/packages/source/p/pycparser/pycparser-2.10.t
ar.gz#md5=d87aed98c8a9f386aa56d365fe4d515f
Processing pycparser-2.10.tar.gz
Running pycparser-2.10\setup.py -q bdist_egg --dist-dir c:\users\faizan\appdata\
local\temp\easy_install-myikuq\cryptography-0.1\temp\easy_install-ngu9w1\pycpars
er-2.10\egg-dist-tmp-2uhfme
zip_safe flag not set; analyzing archive contents...

Installed c:\users\faizan\appdata\local\temp\easy_install-myikuq\cryptography-0.
1\pycparser-2.10-py2.7.egg
_cffi__xcfd0a060xfba2f231.c
   Creating library c:\users\faizan\appdata\local\temp\easy_install-myikuq\crypt
ography-0.1\cryptography\hazmat\primitives\__pycache__\Release\cryptography\hazm
at\primitives\__pycache__\_cffi__xcfd0a060xfba2f231.lib and object c:\users\faiz
an\appdata\local\temp\easy_install-myikuq\cryptography-0.1\cryptography\hazmat\p
rimitives\__pycache__\Release\cryptography\hazmat\primitives\__pycache__\_cffi__
xcfd0a060xfba2f231.exp
_cffi__x5fea2bacx4a8b9ec1.c
cryptography\hazmat\primitives\__pycache__\_cffi__x5fea2bacx4a8b9ec1.c(218) : wa
rning C4244: '=' : conversion from 'unsigned __int64' to 'uint8_t', possible los
s of data
   Creating library c:\users\faizan\appdata\local\temp\easy_install-myikuq\crypt
ography-0.1\cryptography\hazmat\primitives\__pycache__\Release\cryptography\hazm
at\primitives\__pycache__\_cffi__x5fea2bacx4a8b9ec1.lib and object c:\users\faiz
an\appdata\local\temp\easy_install-myikuq\cryptography-0.1\cryptography\hazmat\p
rimitives\__pycache__\Release\cryptography\hazmat\primitives\__pycache__\_cffi__
x5fea2bacx4a8b9ec1.exp
_cffi__xd9dc3d0ax8cb54b0a.c
cryptography\hazmat\bindings\__pycache__\_cffi__xd9dc3d0ax8cb54b0a.c(165) : fata
l error C1083: Cannot open include file: 'openssl/asn1.h': No such file or direc
tory
error: c:\users\faizan\appdata\local\temp\easy_install-myikuq\cryptography-0.1\c
ffi-0.8.1-py2.7-win32.egg\_cffi_backend.pyd: Access is denied

Eu tentei todas as respostas post ou tutorial para esse assunto .. Alguma solução para superar isso? Eu estou em uma máquina Windows de 64 bits

    

Answer 1

Eu tenho exatamente o mesmo problema, mas no Windows XP.

Para resolver o arquivo openssl / asn1.h, nenhum problema com esse arquivo verifica suas variáveis de sistema LIB e INCLUDE .

No Windows XP, você pode fazer isso a partir da janela do prompt do CMD com os seguintes comandos:

SET LIB

SET INCLUDE

Eles devem incluir o lib e incluir pastas do diretório OpenSSL. Na minha máquina:

SET LIB C:\OpenSSL-win32\lib;etc;etc;etc

SET INCLUDE C:\OpenSSL-win32\include;etc;etc

Você pode adicionar às variáveis do sistema assim:

SET LIB=C:\OPenSSL-win32\lib;%LIB%

Isso não cura o problema de acesso negado, infelizmente.

    

Answer 2

Se alguém se deparar com este tópico mais tarde:

Eu tive dificuldades incríveis para instalar o Scrapy com o easy_install no Python 2.7. O módulo de criptografia em particular era impossível de instalar.

Eu instalei o pip usando as informações encontradas no link

Depois, um simples pip install scrapy e eu estava no negócio.