因此,在用户需要为Scrapy安装的许多软件包中,我认为我遇到了pyOpenSSL问题.
当我尝试创建一个教程Scrapy项目时,我得到以下输出:
Traceback (most recent call last): File "C:\Python27\lib\runpy.py", line 162, in _run_module_as_main "__main__", fname, loader, pkg_name) File "C:\Python27\lib\runpy.py", line 72, in _run_code exec code in run_globals File "C:\Python27\lib\site-packages\scrapy\cmdline.py", line 168, inexecute() File "C:\Python27\lib\site-packages\scrapy\cmdline.py", line 122, in execute cmds = _get_commands_dict(settings, inproject) File "C:\Python27\lib\site-packages\scrapy\cmdline.py", line 46, in _get_comma nds_dict cmds = _get_commands_from_module('scrapy.commands', inproject) File "C:\Python27\lib\site-packages\scrapy\cmdline.py", line 29, in _get_comma nds_from_module for cmd in _iter_command_classes(module): File "C:\Python27\lib\site-packages\scrapy\cmdline.py", line 20, in _iter_comm and_classes for module in walk_modules(module_name): File "C:\Python27\lib\site-packages\scrapy\utils\misc.py", line 68, in walk_mo dules submod = import_module(fullpath) File "C:\Python27\lib\importlib\__init__.py", line 37, in import_module __import__(name) File "C:\Python27\lib\site-packages\scrapy\commands\bench.py", line 3, in from scrapy.tests.mockserver import MockServer File "C:\Python27\lib\site-packages\scrapy\tests\mockserver.py", line 6, in from twisted.internet import reactor, defer, ssl File "C:\Python27\lib\site-packages\twisted\internet\ssl.py", line 59, in from OpenSSL import SSL File "build\bdist.win32\egg\OpenSSL\__init__.py", line 8, in File "build\bdist.win32\egg\OpenSSL\rand.py", line 11, in File "build\bdist.win32\egg\OpenSSL\_util.py", line 3, in ImportError: No module named cryptography.hazmat.bindings.openssl.binding
当我用Google搜索最后一个错误(没有名为cryptography.hazmat的模块)时,我看到了几个pyOpenSSL的提及.所以我继续尝试运行easy_install pyOpenSSL==0.14
以确保它是最新版本,但是当我这样做时,我得到了这个输出:
c:\python27\include\pymath.h(22) : warning C4273: 'round' : inconsistent dll lin kage C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\INCLUDE\math.h(51 6) : see previous definition of 'round' c:\users\bk\appdata\local\temp\easy_install-tztawu\cryptography-0.4\temp\easy_in stall-svxsjy\cffi-0.8.2\c\misc_win32.h(225) : error C2632: 'char' followed by 'b ool' is illegal c:\users\bk\appdata\local\temp\easy_install-tztawu\cryptography-0.4\temp\easy_in stall-svxsjy\cffi-0.8.2\c\misc_win32.h(225) : warning C4091: 'typedef ' : ignore d on left of 'unsigned char' when no variable is declared c/_cffi_backend.c(5295) : warning C4146: unary minus operator applied to unsigne d type, result still unsigned c/_cffi_backend.c(5296) : warning C4146: unary minus operator applied to unsigne d type, result still unsigned c/_cffi_backend.c(5297) : warning C4146: unary minus operator applied to unsigne d type, result still unsigned c/_cffi_backend.c(5298) : warning C4146: unary minus operator applied to unsigne d type, result still unsigned error: Setup script exited with error: command '"C:\Program Files (x86)\Microsof t Visual Studio 12.0\VC\BIN\cl.exe"' failed with exit status 2
所以我有点迷失了我需要做些什么来让Scrapy正常运行
我在Mac OS上遇到了同样的错误.
我通过使用openssl 0.13而不是最新版本来解决它.
easy_install pyOpenSSL==0.13
要么
pip install pyOpenSSL==0.13