导入错误：没有名为“cv2”的模块 Python3

Question

我有这样的问题

(face_det) user@pc:~$ python3
Python 3.5.3 (default, Apr 22 2017, 00:00:00)
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named 'cv2

我在 python2 上没有它：

 (face_det) user@pc:~$ python2
Python 2.7.13 |Anaconda custom (64-bit)| (default, Dec 20 2016, 23:09:15)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
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>>> import cv2
>>>

尽管我有 opencv（我也尝试删除它然后安装）：

 (face_det) user@pc:~$ pip3 install opencv
Requirement already satisfied: opencv in ./.virtualenvs/face_det/lib/python3.5/site-packages
(face_det) user@pc:~$ conda install opencv
Fetching package metadata .........
Solving package specifications: .

# All requested packages already installed.
# packages in environment at /home/pc/anaconda3:
#
opencv                    3.2.0               np112py27_0    conda-forge

原文由 Firsttry 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

尝试

pip3 install opencv-python

得到 cv2 。我不确定 opencv-python 何时可用。我一直在手工构建 opencv，但当我几周前查看时，它就在那里。我在运行 ubuntu/trusty64 的虚拟机中使用 cv2 和 Python3。

原文由 Dave W. Smith 发布，翻译遵循 CC BY-SA 3.0 许可协议