Python can'；找不到带flask的flask.ext.pagedown模块

我正试图在我的机器上用flask+python设置一些示例代码，下面是我的网站

然而，我有一个问题如下

from flask.ext.pagedown import PageDown


Traceback (most recent call last):
  File "/Users/iMacBin/Documents/projects/flask/flasky/manage.py", line 3, in <module>
    from app import create_app, db
  File "/Users/iMacBin/Documents/projects/flask/flasky/app/__init__.py", line 7, in <module>
    from flask.ext.pagedown import PageDown
  File "/Library/Python/2.7/site-packages/Flask-0.10.1-py2.7.egg/flask/exthook.py", line 87, in load_module
    raise ImportError('No module named %s' % fullname)
ImportError: No module named flask.ext.pagedown

我在网上搜索了一下，发现flask.ext可能已经过时了，所以我也试了一下

from flask_pagedown import PageDown

但它也有同样的问题，“没有名为flask_pagedown的模块”

仅供参考，我的python版本是2.7.6。我使用的IDE是PyCharm

---

有谁能给我点建议吗？

我不能告诉你问题出在哪里，但至少在我这方面是有效的

(env)➜ ocmg-py-frontend git:(master) ✗ pip install flask-pagedown
Collecting flask-pagedown
  Downloading https://devpi.ocx.dk/root/pypi/+f/73a/4fb383fcd4e1f/Flask-PageDown-0.1.5.tar.gz
Requirement already satisfied (use --upgrade to upgrade): Flask in ./env/lib/python2.7/site-packages (from flask-pagedown)
Collecting WTForms (from flask-pagedown)
  Downloading https://devpi.ocx.dk/root/pypi/+f/364/4164ce003ef52/WTForms-2.0.2-py27-none-any.whl (128kB)
    100% |################################| 131kB 2.0MB/s
Requirement already satisfied (use --upgrade to upgrade): Werkzeug>=0.7 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): itsdangerous>=0.21 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in ./env/lib/python2.7/site-packages (from Jinja2>=2.4->Flask->flask-pagedown)
Installing collected packages: WTForms, flask-pagedown

  Running setup.py install for flask-pagedown
Successfully installed WTForms-2.0.2 flask-pagedown-0.1.5
(env)➜ ocmg-py-frontend git:(master) ✗ python
Python 2.7.9 (default, Jan  7 2015, 11:49:12)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from flask.ext.pagedown import PageDown
>>>

---

您必须在IDE中选择正确的解释器

(env)➜ ocmg-py-frontend git:(master) ✗ pip install flask-pagedown
Collecting flask-pagedown
  Downloading https://devpi.ocx.dk/root/pypi/+f/73a/4fb383fcd4e1f/Flask-PageDown-0.1.5.tar.gz
Requirement already satisfied (use --upgrade to upgrade): Flask in ./env/lib/python2.7/site-packages (from flask-pagedown)
Collecting WTForms (from flask-pagedown)
  Downloading https://devpi.ocx.dk/root/pypi/+f/364/4164ce003ef52/WTForms-2.0.2-py27-none-any.whl (128kB)
    100% |################################| 131kB 2.0MB/s
Requirement already satisfied (use --upgrade to upgrade): Werkzeug>=0.7 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): Jinja2>=2.4 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): itsdangerous>=0.21 in ./env/lib/python2.7/site-packages (from Flask->flask-pagedown)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in ./env/lib/python2.7/site-packages (from Jinja2>=2.4->Flask->flask-pagedown)
Installing collected packages: WTForms, flask-pagedown

  Running setup.py install for flask-pagedown
Successfully installed WTForms-2.0.2 flask-pagedown-0.1.5
(env)➜ ocmg-py-frontend git:(master) ✗ python
Python 2.7.9 (default, Jan  7 2015, 11:49:12)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from flask.ext.pagedown import PageDown
>>>