运行示例金字塔程序时出现问题.给ImportError:没有名为execptions的模块错误

Question

我是python和Pyramid的新手.我今天安装了金字塔,我已经在我的mac机器上预装了python 2.7.1.我已经按照官方网站上提到的说明安装了金字塔.我已经在网站上提到了virtualenv和nositepackages,我在我的/users/sreekanth 目录中安装了金字塔

安装后,我尝试了我的第一个示例程序,如文档中所述.

当我尝试运行该程序时,我收到的错误如下所示.

sreekanths-MacBook-Pro:tasks Sreekanth$ ../bin/python2.7 tasks.py
Traceback (most recent call last):
  File "tasks.py", line 87, in <module>
    config.scan()
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/config/__init__.py", line 893, in scan
    scanner.scan(package, categories=categories, onerror=onerror)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/venusian-1.0a2-py2.7.egg/venusian/__init__.py", line 95, in scan
    invoke(name, ob)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/venusian-1.0a2-py2.7.egg/venusian/__init__.py", line 92, in invoke
    callback(self, name, ob)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/view.py", line 210, in callback
    config.add_view(view=ob, **settings)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/config/views.py", line 575, in wrapper
    return wrapped(*arg, **defaults)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/config/util.py", line 59, in wrapper
    result = wrapped(self, *arg, **kw)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/config/views.py", line 926, in add_view
    context = self.maybe_dotted(context)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/config/__init__.py", line 808, in maybe_dotted
    return self.name_resolver.maybe_resolve(dotted)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/path.py", line 318, in maybe_resolve
    return self._resolve(dotted, package)
  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/path.py", line 325, in _resolve
    return self._zope_dottedname_style(dotted, package)


  File "/Users/Sreekanth/env/lib/python2.7/site-packages/pyramid-1.3a3-py2.7.egg/pyramid/path.py", line 374, in _zope_dottedname_style
    __import__(used)
ImportError: No module named execptions

而且我也无法从python shell导入金字塔模块.以下是我收到的错误消息.

sreekanths-MacBook-Pro:bin Sreekanth$ pwd
/Users/Sreekanth/env/bin
sreekanths-MacBook-Pro:bin Sreekanth$ python
Python 2.7.1 (r271:86832, Jun 16 2011, 16:59:05) 
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyramid
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named pyramid

有人可以向我解释我错过了什么以及如何使这项工作成功.

Answer 1

第一个错误表示您的程序中有拼写错误.最有可能的是,你写道

from pyramid.execptions import NotFound

代替

from pyramid.exceptions import NotFound
#              ^^

而且,由于您已将pylons /金字塔安装到virtualenv中,因此需要先source bin/activate在命令行中激活它.这将设置正确的python路径,您可以通过sys.path在python控制台中检查来检查.