我用pip（9.0.1）下的Python 3.6（在Xubuntu 16.04），但没有图像显示时，我试图阴谋的东西。
使用ipython3 --matplotlib qt启动ipython会出现以下错误：
ImportError: Matplotlib qt-based backends require an external PyQt4, PyQt5,
or PySide package to be installed, but it was not found.我试着用pip安装这些，但失败了：
$ pip3.6 install PySide
Collecting PySide
Downloading PySide-1.2.4.tar.gz (9.3MB)
100% |████████████████████████████████| 9.3MB 12.8MB/s
Complete output from command python setup.py egg_info:
only these python versions are supported: [(2, 6), (2, 7), (3, 2), (3, 3), (3, 4)]
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-bzzpzy5q/PySide/
$ pip3.6 install PyQT
Collecting PyQT
Could not find a version that satisfies the requirement PyQT (from versions: )
No matching distribution found for PyQT
$ pip3.6 install PyQT4
Collecting PyQT4
Could not find a version that satisfies the requirement PyQT4 (from versions: )
No matching distribution found for PyQT4
$ pip3.6 install PyQT5
Collecting PyQT5
Could not find a version that satisfies the requirement PyQT5 (from versions: )
No matching distribution found for PyQT5如果我尝试ipython3 --matplotlib gtk，错误是：
ImportError: Gtk* backend requires pygtk to be installed.但是：
$ pip3.6 install pygtk
Collecting pygtk
Could not find a version that satisfies the requirement pygtk (from versions: )
No matching distribution found for pygtk我似乎明白，PyGobject或PyGI取代了Python 3中的pygtk。事实上，ipython3 --matplotlib gtk3的结果是：
ImportError: Gtk3 backend requires pygobject to be installed.但是：
$ pip3.6 install pygobject
Collecting pygobject
Could not find a version that satisfies the requirement pygobject (from versions: )
No matching distribution found for pygobject
$ pip3.6 install PyGObject
Collecting PyGObject
Could not find a version that satisfies the requirement PyGObject (from versions: )
No matching distribution found for PyGObjectpip3.6 install PyGI终于成功了！
但是matplotlib仍然抱怨没有安装GTK。
我还应该尝试什么？
1条答案
按热度按时间vsnjm48y1#
获取Tk后台
正如@ImportanceOfBeingErnest建议的那样，至少应该有一个后端可用：基于TK的
如果在编译python时，Tk开发库可用，这是正确的。但我的情况并非如此（我认为预编译的python发行版应该启用Tk）。
当我尝试使用Tk作为matplotlib后端（
ipython3 --matplotlib tk）启动ipython时，我得到了类似于以下的错误消息：下面对answer的注解解释了如何在Ubuntu中获取Tk开发库：
apt install tk-dev。在这样做并重新编译python 3之后。6，
ipython3 --matplotlib tk会话启动时没有错误，并且可以显示图形。设置默认后端选项
matplotlib documentation给出了一个配置文件的示例，我下载了它作为
~/.config/matplotlib/matplotlibrc。在该文件中，我设置了backend : TkAgg。其他后端
上面提到的配置文件中的注解提到了另一个基于WX的GUI后端的存在，与PyGTK和PyQT一样，似乎不能使用pip for python 3进行安装。6截至2017年1月（至少在Linux中）：