我正在尝试将networkx与Python一起使用.当我运行此程序时,它会收到此错误.有什么遗漏？
#!/usr/bin/env python
import networkx as nx
import matplotlib
import matplotlib.pyplot
import matplotlib.pyplot as plt
G=nx.Graph()
G.add_node(1)
G.add_nodes_from([2,3,4,5,6,7,8,9,10])
#nx.draw_graphviz(G)
#nx_write_dot(G, 'node.png')
nx.draw(G)
plt.savefig("/var/www/node.png")
Traceback (most recent call last):
File "graph.py", line 13, in <module>
nx.draw(G)
File "/usr/lib/pymodules/python2.5/networkx/drawing/nx_pylab.py", line 124, in draw
cf=pylab.gcf()
File "/usr/lib/pymodules/python2.5/matplotlib/pyplot.py", line 276, in gcf
return figure()
File "/usr/lib/pymodules/python2.5/matplotlib/pyplot.py", line 254, in figure
**kwargs)
File "/usr/lib/pymodules/python2.5/matplotlib/backends/backend_tkagg.py", line 90, in new_figure_manager
window = Tk.Tk()
File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1650, in __init__
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, …我正在远程计算机上运行python脚本，该脚本运行良好，但是启动后不久，我收到警告：
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-myusername'
我不担心这个警告，因为它没有停止我的代码。
然后，我尝试使用Slurm工作负载管理器通过以下命令提交相同的代码：
sbatch --wrap="python mycode.py" -N 1 --cpus-per-task=8 -o mycode.o
当我这样做时，代码不起作用，并且出现以下错误：
Traceback (most recent call last):
File "mycode.py", line 99, in <module>
fig=plt.figure(figsize=(20, 12), dpi = 100, facecolor='w', edgecolor='k')
File "/home/myusername/miniconda3/lib/python3.7/site-packages/matplotlib/pyplot.py", line 539, in figure
**kwargs)
File "/home/myusername/miniconda3/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 3252, in new_figure_manager
return cls.new_figure_manager_given_figure(num, fig)
File "/home/myusername/miniconda3/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py", line 946, in new_figure_manager_given_figure
window = tk.Tk(className="matplotlib")
File "/home/myusername/miniconda3/lib/python3.7/tkinter/__init__.py", line 2023, in __init__
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)_tkinter.TclError: couldn't connect …