“ImportError：没有名为 pyaudio 的模块”尽管安装了 python-pyaudio

我正在尝试运行一个使用 pyaudio 的 Python 程序：

1. 我下载了程序（从 Github下载，因为 .deb 太旧了）
2. 我安装python-pyaudio
3. 我运行程序
4. 节目说ImportError: No module named 'pyaudio'

我究竟做错了什么？

$ sudo apt-get install python-pyaudio
[sudo] password for nico: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  python-pyaudio-doc
The following NEW packages will be installed:
  python-pyaudio
0 upgraded, 1 newly installed, 0 to remove and 49 not upgraded.
Need to get 0 B/24.1 kB of archives.
After this operation, 109 kB of additional disk space will be used.
Selecting previously unselected package python-pyaudio.
(Reading database ... 336001 files and directories currently installed.)
Preparing to unpack .../python-pyaudio_0.2.8-1build2_amd64.deb ...
Unpacking python-pyaudio (0.2.8-1build2) ...
Setting up python-pyaudio (0.2.8-1build2) ...

$ ./runanki 
Traceback (most recent call last):
  File "./runanki", line 3, in <module>
    import aqt
  File "/home/nico/src/anki/aqt/__init__.py", line 4, in <module>
    from anki import version as _version
  File "/home/nico/src/anki/anki/__init__.py", line 13, in <module>
    from anki.storage import Collection
  File "/home/nico/src/anki/anki/storage.py", line 12, in <module>
    from anki.collection import _Collection
  File "/home/nico/src/anki/anki/collection.py", line 26, in <module>
    from anki.sound import stripSounds
  File "/home/nico/src/anki/anki/sound.py", line 207, in <module>
    import pyaudio
ImportError: No module named 'pyaudio'

环境：

$ which python
/usr/bin/python
$ python --version
Python 2.7.11+