无法安装Orange 3 ImportError: PyQt4、PyQt5或PySide无法导入

Question

我正在使用Ubuntu 14.04。我创建了一个虚拟环境，并使用

pip install orange3

我还安装了PyQt4

 sudo apt-get install python3-pyqt4

但是当我从终端启动orange3时，我得到了以下错误。

Traceback (most recent call last):
  File "/home/arun/.virtualenvs/orange3env/bin/orange-canvas", line 11, in <module>
    load_entry_point('Orange3', 'gui_scripts', 'orange-canvas')()
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/pkg_resources/__init__.py", line 561, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2649, in load_entry_point
    return ep.load()
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2303, in load
    return self.resolve()
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/pkg_resources/__init__.py", line 2309, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/arun/lab/orange3/Orange/canvas/__main__.py", line 21, in <module>
    from AnyQt.QtGui import QFont, QColor, QDesktopServices
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/AnyQt/QtGui.py", line 1, in <module>
    from . import _api
  File "/home/arun/.virtualenvs/orange3env/lib/python3.4/site-packages/AnyQt/_api.py", line 96, in <module>
    raise ImportError("PyQt4, PyQt5 or PySide are not available for import")
ImportError: PyQt4, PyQt5 or PySide are not available for import

Answer 1

似乎您在运行Orange的PyQt中缺少了一个https://realpython.com/blog/python/python-virtual-environments-a-primer/版本。

最好在你安装的Orange终端上做一些像pip3 install pyqt5这样的事情。

Answer 2

试试这个(对我有用)

sudo apt安装python3 3-pyqt5.qtsvg

https://thequickblog.com/orange3-no-module-named-pyqt5-qtsvg/