Import issue with Theano: AttributeError: 'module' object has no attribute 'poll'

Question

我已经切换到一台新机器并尝试使用我的代码（在之前的机器上运行）。 我在以下版本中使用 python/django/Theano/Keras（当然与以前的机器对齐...）：

• Django==1.9.6
• django-cors-headers==1.1.0
• django-user-agents==0.3.0
• Keras==1.0.3
• python-apt===0.9.3.5ubuntu2
• python-dateutil==2.5.3
• python-debian===0.1.21-nmu2ubuntu2
• scipy==0.17.1
• Theano==0.8.2

在其中一个导入中出现以下错误： （请注意，在其他情况下，我得到了缺少 gof 的错误...但这可能是一个不同的问题）

• 最后导入失败行：

  AttributeError: 'module' object has no attribute 'poll'
  

有什么想法吗？ 谢谢！

• 简短版本：

File "/home/django/django_project/textlab/mainClasses/UploadNewSetCluster2TLChosen.py", line 10, in <module> from keras.models import model_from_json File "/usr/local/lib/python2.7/dist-packages/keras/__init__.py", line 2, in <module> from . import backend File "/usr/local/lib/python2.7/dist-packages/keras/backend/__init__.py", line 51, in <module> from .theano_backend import * File "/usr/local/lib/python2.7/dist-packages/keras/backend/theano_backend.py", line 1, in <module> import theano File "/usr/local/lib/python2.7/dist-packages/theano/__init__.py", line 42, in <module> from theano.configdefaults import config File "/usr/local/lib/python2.7/dist-packages/theano/configdefaults.py", line 1452, in <module> p_out = output_subprocess_Popen([config.cxx, '-dumpversion']) File "/usr/local/lib/python2.7/dist-packages/theano/misc/windows.py", line 78, in output_subprocess_Popen out = p.communicate() File "/usr/lib/python2.7/subprocess.py", line 799, in communicate return self._communicate(input) File "/usr/lib/python2.7/subprocess.py", line 1401, in _communicate stdout, stderr = self._communicate_with_poll(input) File "/usr/lib/python2.7/subprocess.py", line 1431, in _communicate_with_poll poller = select.poll() AttributeError: 'module' object has no attribute 'poll'

• 完整版 [05/Aug/2016 08:22:50] ERROR [/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py:284] Internal Server Error: /dashboardeventreport Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 123, in get_response response = middleware_method(request) File "/usr/local/lib/python2.7/dist-packages/django/middleware/common.py", line 61, in process_request if self.should_redirect_with_slash(request): File "/usr/local/lib/python2.7/dist-packages/django/middleware/common.py", line 79, in should_redirect_with_slash not urlresolvers.is_valid_path(request.path_info, urlconf) File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 668, in is_valid_path resolve(path, urlconf) File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 534, in resolve return get_resolver(urlconf).resolve(path) File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 374, in resolve for pattern in self.url_patterns: File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 33, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 417, in url_patterns patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 33, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 410, in urlconf_module return import_module(self.urlconf_name) File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) File "/home/django/django_project/django_project/urls.py", line 17, in <module> from textlab import views File "/home/django/django_project/textlab/views.py", line 43, in <module> from mainClasses import UploadNewSetCluster2TLChosen File "/home/django/django_project/textlab/mainClasses/UploadNewSetCluster2TLChosen.py", line 10, in <module> from keras.models import model_from_json File "/usr/local/lib/python2.7/dist-packages/keras/__init__.py", line 2, in <module> from . import backend File "/usr/local/lib/python2.7/dist-packages/keras/backend/__init__.py", line 51, in <module> from .theano_backend import * File "/usr/local/lib/python2.7/dist-packages/keras/backend/theano_backend.py", line 1, in <module> import theano File "/usr/local/lib/python2.7/dist-packages/theano/__init__.py", line 42, in <module> from theano.configdefaults import config File "/usr/local/lib/python2.7/dist-packages/theano/configdefaults.py", line 1452, in <module> p_out = output_subprocess_Popen([config.cxx, '-dumpversion']) File "/usr/local/lib/python2.7/dist-packages/theano/misc/windows.py", line 78, in output_subprocess_Popen out = p.communicate() File "/usr/lib/python2.7/subprocess.py", line 799, in communicate return self._communicate(input) File "/usr/lib/python2.7/subprocess.py", line 1401, in _communicate stdout, stderr = self._communicate_with_poll(input) File "/usr/lib/python2.7/subprocess.py", line 1431, in _communicate_with_poll poller = select.poll() AttributeError: 'module' object has no attribute 'poll'

Answer 1

已解决！ 问题是 gunicorn 版本。 gunicorn 没有使用 pip freeze 列出 - 因此如果版本对齐我没有。 无论如何 - 这一行解决了这个问题：

sudo pip install gunicorn==19.4.5

请注意，您可能会遇到一些有关 .theano 文件夹权限的问题。 在这种情况下，只需使用：

sudo chown django:django <your django folder>

谢谢！