回答此问题可获得 20 贡献值,回答如果被采纳可获得 50 分。
<p>我已经成功地安装了Scrapy和它的所有依赖Python.org网站Windows Vista 64位平台上的64 shell。这是作为站点包安装的。我通过输入以下内容测试了Scrapy works ok的基本级别:</p>
<pre><code>Import Scrapy
</code></pre>
<p>并没有出错。我刚开始学习如何使用Scrapy。其中大多数建议使用以下命令提示行设置新项目:</p>
^{pr2}$
<p>但是这会在标题中抛出错误消息,说明scray是无效命令。我已经尝试修改我的环境变量,以允许我从命令提示符内的任何文件位置使用此命令。我在环境变量的末尾添加了以下内容:</p>
<pre><code>C:\Python27;C:\Python27\Scripts;C:\Python27\Lib\site-packages\scrapy;C:\Python27\Scrapy
</code></pre>
<p>但这似乎并不能解决问题,因为我仍然收到相同的错误消息。我还尝试过使用命令提示符从以下位置运行“scrpy startproject myproject”命令:</p>
<pre><code>C:\Python27
C:\Python27\Scripts
C:\Python27\Scrapy
</code></pre>
<p>这仍然会抛出相同的错误消息。我觉得我很快就有了解决办法,但我似乎不能让它发挥作用。在</p>
<p>有人能看出我哪里出错了吗?在</p>
<p>谢谢</p>
<p><strong>编辑:</strong></p>
<p>作为对MattDMo上面的最后一条评论的回应,该命令现在起作用了,但是它现在抛出了以下错误消息,我甚至不知道从哪里开始:</p>
<pre><code>C:\Python27\Scripts>scrapy startprogram mrscript
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: The s
pecified module could not be found.
</code></pre>
<p>这实际上是一个错误日志还是一个标准的打印输出?另外,有人能解释一下为什么在我的Python脚本中添加一个.bat文件可以使其工作吗?在</p>
<p>谢谢</p>