title: Scrapy giving error on start running:AttributeError: 'module' object has no attribute 'Any'
body: <p>Using a tutorial, started "scrapy crawl dmoz" showing an error. I have installed Scrapy but don't know how to check whether it is correctly installed or not. I am using tutorial to use it but got stuck. Trackback is below-</p>
  
  <pre><code>    Traceback (most recent call last):
      File "/usr/local/bin/scrapy", line 9, in &lt;module&gt;
  load_entry_point('Scrapy==0.24.5', 'console_scripts', 'scrapy')()
      File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 122, in execute
  cmds = _get_commands_dict(settings, inproject)
      File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 46, in _get_commands_dict
  cmds = _get_commands_from_module('scrapy.commands', inproject)
      File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 29, in _get_commands_from_module
  for cmd in _iter_command_classes(module):
      File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 20, in _iter_command_classes
  for module in walk_modules(module_name):
      File "/usr/local/lib/python2.7/dist-packages/scrapy/utils/misc.py", line 68, in walk_modules
  submod = import_module(fullpath)
      File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
  __import__(name)
      File "/usr/local/lib/python2.7/dist-packages/scrapy/commands/bench.py", line 3, in &lt;module&gt;
  from scrapy.tests.mockserver import MockServer
      File "/usr/local/lib/python2.7/dist-packages/scrapy/tests/mockserver.py", line 6, in &lt;module&gt;
  from twisted.internet import reactor, defer, ssl
      File "/usr/local/lib/python2.7/dist-packages/twisted/internet/ssl.py", line 223, in &lt;module&gt;
  from twisted.internet._sslverify import (
      File "/usr/local/lib/python2.7/dist-packages/twisted/internet/_sslverify.py", line 192, in &lt;module&gt;
  verifyHostname, VerificationError = _selectVerifyImplementation(OpenSSL)
      File "/usr/local/lib/python2.7/dist-packages/twisted/internet/_sslverify.py", line 167, in _selectVerifyImplementation
  from service_identity import VerificationError
      File "/usr/local/lib/python2.7/dist-packages/service_identity/__init__.py", line 12, in &lt;module&gt;
  from . import pyopenssl
      File "/usr/local/lib/python2.7/dist-packages/service_identity/pyopenssl.py", line 12, in &lt;module&gt;
  from pyasn1_modules.rfc2459 import GeneralNames
      File "/usr/local/lib/python2.7/dist-packages/pyasn1_modules/rfc2459.py", line 72, in &lt;module&gt;
  class AttributeValue(univ.Any): pass
      AttributeError: 'module' object has no attribute 'Any'
  </code></pre>