Question

我（据我所知）正确安装了Scrapy的所有依赖项。我在Windows Vista 64位上运行Scrapy.org，64位版本的Python。我到目前为止安装了：

Visual C ++ Redistributables（64位）
Win32 Open SSL（根据上述说明将DLL复制到bin目录中）
为C：\ Python27，C：\ Python27 \ Scripts和openssl-win32 \ bin
Visual C ++ Studio 2008
Pywin32
的Zope
扭
LXML
PyopenSSL
w3lib

这是我需要使Scrapy正确运行的完整列表吗？到目前为止，当我尝试运行命令时：

scrapy startproject myproject

我在命令外壳中遇到以下错误：

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation.  All rights reserved.

C:\Users\Oleg Salenko>scrapy startproject mrscrap
Traceback (most recent call last):
  File "c:\Python27\Scripts\scrapy", line 3, in <module>
    from scrapy.cmdline import execute
  File "c:\Python27\lib\site-packages\scrapy\cmdline.py", line 9, in <module>
    from scrapy.crawler import CrawlerProcess
  File "c:\Python27\lib\site-packages\scrapy\crawler.py", line 3, in <module>
    from twisted.internet import reactor, defer
  File "c:\Python27\lib\site-packages\twisted\internet\reactor.py", line 38, in
<module>
    from twisted.internet import default
  File "c:\Python27\lib\site-packages\twisted\internet\default.py", line 56, in
<module>
    install = _getInstallFunction(platform)
  File "c:\Python27\lib\site-packages\twisted\internet\default.py", line 50, in
_getInstallFunction
    from twisted.internet.selectreactor import install
  File "c:\Python27\lib\site-packages\twisted\internet\selectreactor.py", line 1
8, in <module>
    from twisted.internet import posixbase
  File "c:\Python27\lib\site-packages\twisted\internet\posixbase.py", line 24, i
n <module>
    from twisted.internet import error, udp, tcp
  File "c:\Python27\lib\site-packages\twisted\internet\tcp.py", line 29, in <mod
ule>
    from twisted.internet._newtls import (
  File "c:\Python27\lib\site-packages\twisted\internet\_newtls.py", line 21, in
<module>
    from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
  File "c:\Python27\lib\site-packages\twisted\protocols\tls.py", line 41, in <mo
dule>
    from OpenSSL.SSL import Error, ZeroReturnError, WantReadError
  File "c:\Python27\lib\site-packages\OpenSSL\__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "c:\Python27\lib\site-packages\OpenSSL\rand.py", line 11, in <module>
    from OpenSSL._util import (
  File "c:\Python27\lib\site-packages\OpenSSL\_util.py", line 4, in <module>
    binding = Binding()
  File "c:\Python27\lib\site-packages\cryptography\hazmat\bindings\openssl\bindi
ng.py", line 87, in __init__
    self._ensure_ffi_initialized()
  File "c:\Python27\lib\site-packages\cryptography\hazmat\bindings\openssl\bindi
ng.py", line 106, in _ensure_ffi_initialized
    libraries=libraries,
  File "c:\Python27\lib\site-packages\cryptography\hazmat\bindings\utils.py", li
ne 80, in build_ffi
    extra_link_args=extra_link_args,
  File "c:\Python27\lib\site-packages\cffi\api.py", line 341, in verify
    lib = self.verifier.load_library()
  File "c:\Python27\lib\site-packages\cffi\verifier.py", line 75, in load_librar
y
    return self._load_library()
  File "c:\Python27\lib\site-packages\cffi\verifier.py", line 151, in _load_libr
ary
    return self._vengine.load_library()
  File "c:\Python27\lib\site-packages\cffi\vengine_cpy.py", line 138, in load_li
brary
    raise ffiplatform.VerificationError(error)
cffi.ffiplatform.VerificationError: importing 'c:\\Python27\\lib\\site-packages\
\cryptography\\_Cryptography_cffi_444d7397xa22f8491.pyd': DLL load failed: %1 is
 not a valid Win32 application.

C:\Users\Oleg Salenko>

任何人都可以看到导致这些错误的原因吗？我是Python的新手，Scrapy是迄今为止我努力工作的最艰难的事情。

由于

Answer 1

这是通过安装OpenSSL 64位而不是32位来解决的。一点男生的错误，但我很高兴我设法解决了根本原因！

Answer 2

我通过使用安装程序从这里安装pyOpenSSL 64位来解决它：http://www.egenix.com/cryptodownload/?file=egenix-pyopenssl-0.13.0_1.0.0g_1.win-amd64-py2.7.msi

安装OpenSSL 64位无法解决我的问题。

Answer 3

我刚刚在另一个帖子中回答了这个问题，但以防万一。

我刚刚设法解决了这个问题，对于那些可能偶然发现这个问题的人来说，问题是你需要PyWin32。对于Windows用户：

pip install PyWin32 here，选择正确的python版本和32 / 64bit。现在在cmd中：

pip install c：\ users \ desktop \ pywin32-220.1-cp27-cp27m-win_amd64.whl
现在，安装pywin32系统文件，运行＆＃34; python.exe Scripts \ pywin32_postinstall.py -install＆＃34;从提升的命令提示符。将cmd作为 admin 运行并在命令提示符下运行

python＆＃34; C：\ Python27 \ Scripts \ pywin32_postinstall.py＆＃34; -install

安装Scrapy的问题

3 个答案: