matplotlib图在Anaconda for Linux上不显示

Question

我已经阅读了这些，并尝试了解决方案，但仍然没有得到任何显示：

matplotlib show nothing although i called show

Why doesn't pyplot.show() work? [duplicate]

matplotlib does not show my drawings although I call pyplot.show()

我在Ubuntu 12.04上使用Python 2.7.6 |Anaconda 1.9.0 (64位)。我该如何诊断问题并尝试解决它呢？

编辑：

-First我编辑了matplotlibrc，并将后端改为GtkAgg (设置为QtAgg)。

-Then我尝试通过代码更改后端: matplotlib.rcParams' backend‘= "GtkAgg“

EDIT2 -从Spyder控制台添加详细信息(末尾没有显示绘图)：

Python 2.7.6 |Anaconda 1.9.0 (64-bit)| (default, Jan 17 2014, 10:13:17) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-54)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

Imported NumPy 1.8.0, SciPy 0.13.3, Matplotlib 1.3.1
Type "scientific" for more details.
>>> scientific

This is a standard Python interpreter with preloaded tools for scientific 
computing and visualization. It tries to import the following modules:

>>> import numpy as np  # NumPy (multidimensional arrays, linear algebra, ...)
>>> import scipy as sp  # SciPy (signal and image processing library)
>>> import matplotlib as mpl         # Matplotlib (2D/3D plotting library)
>>> import matplotlib.pyplot as plt  # Matplotlib's pyplot: MATLAB-like syntax
>>> from pylab import *              # Matplotlib's pylab interface
>>> ion()                            # Turned on Matplotlib's interactive mode

Within Spyder, this interpreter also provides:
    * special commands (e.g. %ls, %pwd, %clear)
    * system commands, i.e. all commands starting with '!' are subprocessed
      (e.g. !dir on Windows or !ls on Linux, and so on)

>>> plot(range(3))
[<matplotlib.lines.Line2D object at 0x3f3cd50>]
>>> show()

Answer 1

我最终在Spyder中解决了这个问题: Preferences -> Console -> External modules -> check Install Spyder's input hook for Qt

Answer 2

为了让您的matplotlib后端选择生效，您需要为该后端安装Python。例如，您可能正在运行基于GTK的窗口管理器，比如GNOME，但是仍然没有Python绑定。根据this的说法，合适的Ubuntu包是python-gtk。因此，打开您最喜欢的终端仿真器并输入

sudo apt-get install python-gtk

(您需要管理员权限才能完成此操作)。重新启动python/matplotlib会话，就可以开始了。

Answer 3

我在Mavericks上，通过在matplotlibrc中将后端改为Qt4Agg解决了这个问题。(根据此处的另一个答案：Why doesn't pyplot.show() work?)