获取错误:DLL 加载失败:操作系统无法运行 %1 - Python 2.7；Scrapy 模块；导入密码术 [英] Getting error: DLL load failed: The operating system cannot run %1 - Python 2.7; Scrapy Module; Importing Cryptography

问题描述

我无法成功运行 Scrapy 教程 (http://doc.scrapy.org/en/latest/intro/tutorial.html) 中的第一个命令.下面粘贴的代码副本是结果(最后是错误).

I cannot successfully run the first command in the Scrapy tutorial (http://doc.scrapy.org/en/latest/intro/tutorial.html). The code copy pasted below is the result (with the error at the end).

Python 2.7 已安装，我按照scrapy (http://doc.scrapy.org/en/latest/intro/install.html).我在 Windows 7(64 位)上运行 Python 2.7.6 32 位.

Python 2.7 is installed, and I followed the installation instructions for scrapy (http://doc.scrapy.org/en/latest/intro/install.html). I am running Python 2.7.6 32 bit on Windows 7 (64 bit).

安装的其他方面:

1. Twisted-13.2.0.dist-info
2. zope.interface-4.1.1-py2.7
3. Scrapy-0.22.2-py2.7
4. lxml-3.3.3-py2.7
5. cssselect-0.9.1-py2.7
6. cryptography-0.3.dist-info
7. pyOpenSSL-0.14-py2.7
8. pywin32_system32

这是错误信息:

C:Python27Scripts>scrapy startproject tutorial
    Traceback (most recent call last):
      File "C:Python27lib
unpy.py", line 162, in _run_module_as_main
        "__main__", fname, loader, pkg_name)
      File "C:Python27lib
unpy.py", line 72, in _run_code
        exec code in run_globals
      File "C:Python27libsite-packagesscrapycmdline.py", line 9, in <module>
        from scrapy.crawler import CrawlerProcess
      File "C:Python27libsite-packagesscrapycrawler.py", line 3, in <module>
        from twisted.internet import reactor, defer
      File "twistedinternet
eactor.py", line 38, in <module>
        from twisted.internet import default
      File "twistedinternetdefault.py", line 56, in <module>
        install = _getInstallFunction(platform)
      File "twistedinternetdefault.py", line 50, in _getInstallFunction
        from twisted.internet.selectreactor import install
      File "twistedinternetselectreactor.py", line 18, in <module>
        from twisted.internet import posixbase
      File "twistedinternetposixbase.py", line 24, in <module>
        from twisted.internet import error, udp, tcp
      File "twistedinternet	cp.py", line 29, in <module>
        from twisted.internet._newtls import (
      File "twistedinternet\_newtls.py", line 21, in <module>
        from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
      File "twistedprotocols	ls.py", line 40, in <module>
        from OpenSSL.SSL import Error, ZeroReturnError, WantReadError
      File "builddist.win32eggOpenSSL\__init__.py", line 8, in <module>
      File "builddist.win32eggOpenSSL
and.py", line 11, in <module>
      File "builddist.win32eggOpenSSL\_util.py", line 4, in <module>
      File "C:Python27libsite-packagescryptographyhazmatindingsopensslinding.py",      l3, in __init__
      self._ensure_ffi_initialized()
      File "C:Python27libsite-packagescryptographyhazmatindingsopensslinding.py", l9, in _ensure_ffi_initialized libraries)
      File "C:Python27libsite-packagescryptographyhazmatindingsutils.py", line 77, ind_ffi
        ext_package="cryptography",
      File "C:Python27libsite-packagescffiapi.py", line 341, in verify
        lib = self.verifier.load_library()
      File "C:Python27libsite-packagescffiverifier.py", line 75, in load_library
        return self._load_library()
      File "C:Python27libsite-packagescffiverifier.py", line 151, in _load_library
        return self._vengine.load_library()
      File "C:Python27libsite-packagescffivengine_cpy.py", line 138, in load_library
        raise ffiplatform.VerificationError(error)

cffi.ffiplatform.VerificationError: importing 'C:\Python27\lib\site-packages\cryptogr
\_Cryptography_cffi_48bbf0ebx93c91939.pyd': DLL load failed: The operating system cannot
1.**

推荐答案

我只是重新安装密码学以使其工作.

I just reinstall cryptography to make it work.

pip 卸载密码

pip 安装密码

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