有人会画三维柱状图么？

Traceback (most recent call last):
  File "./plot.py", line 58, in <module>
    from mpl_toolkits.mplot3d import Axes3D
  File "/usr/local/lib/python2.7/dist-packages/mpl_toolkits/mplot3d/__init__.py", line 6, in <module>
    from .axes3d import Axes3D
  File "/usr/local/lib/python2.7/dist-packages/mpl_toolkits/mplot3d/axes3d.py", line 24, in <module>
    import matplotlib.axes as maxes
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/__init__.py", line 133, in <module>
    from matplotlib.rcsetup import defaultParams, validate_backend, cycler
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/rcsetup.py", line 31, in <module>
    from matplotlib.fontconfig_pattern import parse_fontconfig_pattern
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/fontconfig_pattern.py", line 28, in <module>
    from backports.functools_lru_cache import lru_cache
ImportError: No module named backports.functools_lru_cache

谷歌了很多办法也没用

@veen 大佬直接给了我一个python的文件

#! /usr/bin/env python

import numpy as np
import matplotlib.pyplot as plt
from scipy.stats import multivariate_normal
from mpl_toolkits.mplot3d import Axes3D

#Parameters to set
mu_x = 0
variance_x = 3

mu_y = 0
variance_y = 15

#Create grid and multivariate normal
x = np.linspace(-10,10,500)
y = np.linspace(-10,10,500)
X, Y = np.meshgrid(x,y)
pos = np.empty(X.shape + (2,))
pos[:, :, 0] = X; pos[:, :, 1] = Y
rv = multivariate_normal([mu_x, mu_y], [[variance_x, 0], [0, variance_y]])

#Make a 3D plot
fig = plt.figure()
ax = fig.gca(projection='3d')
ax.plot_surface(X, Y, rv.pdf(pos),cmap='viridis',linewidth=0)
ax.set_xlabel('X axis')
ax.set_ylabel('Y axis')
ax.set_zlabel('Z axis')
plt.show()

我在复现这篇文章里面的一些数据Euler–Euler Anisotropic Gaussian Mesoscale Simulation of Homogeneous Cluster-Induced Gas–Particle Turbulence，文章里面的方程17就是高斯分布。图1散点我搞出来了。但是有点问题。打算画图来debug一下。

veen

@李东岳李老师，可能是您python版本的问题，我用的是python3.8，您应该也有python3但是系统调用的是python2.7，可以试试python3 plot.py运行。
坐等大佬改我的代码

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有人会画三维柱状图么？