pybinding不能导入名称allow_rasterization

Question

我只是安装pybinding，并试图运行这个库文档中提出的第一个示例。

import pybinding as pb
import numpy as np
import matplotlib.pyplot as plt
import pybinding as pb

d = 0.2  # [nm] unit cell length
t = 1    # [eV] hopping energy

# create a simple 2D lattice with vectors a1 and a2
lattice = pb.Lattice(a1=[d, 0], a2=[0, d])
lattice.add_sublattices(
    ('A', [0, 0])  # add an atom called 'A' at position [0, 0]
)
lattice.add_hoppings(
    # (relative_index, from_sublattice, to_sublattice, energy)
    ([0, 1], 'A', 'A', t),
    ([1, 0], 'A', 'A', t)
)

lattice.plot()
plt.show() 

我已经安装了文档中所需的内容(对于Windows )，并且sicrpt运行得很好，直到它必须执行lattice.plot()才抛出以下错误

Traceback (most recent call last):
  File "prueba.py", line 25, in <module>
    lattice.plot()
  File "C:\xampp7\Python\lib\site-packages\pybinding\lattice.py", line 463, in plot
    axes=axes))
  File "C:\xampp7\Python\lib\site-packages\pybinding\results.py", line 598, in plot
    plot_sites(self.positions, self.sublattices, **props['site'])
  File "C:\xampp7\Python\lib\site-packages\pybinding\system.py", line 285, in plot_sites
    from pybinding.support.collections import CircleCollection
  File "C:\xampp7\Python\lib\site-packages\pybinding\support\collections.py", line 2, in <module>
    from matplotlib.collections import Collection, allow_rasterization
ImportError: cannot import name 'allow_rasterization' 

我已经检查并正确安装了matplotlib (我尝试了matplotlib文档中推荐的一些绘图，并且运行得很好)。此外，在pybinding库中查找文件collections.py，错误出现在第二行。

import numpy as np
from matplotlib.collections import Collection, allow_rasterization

看看collections.py的allow_rasterization，我发现重复的6倍于下面的函数

@artist.allow_rasterization
def draw(self, renderer):

我在python非常新，所以我不知道我是否在看我该做什么。提前感谢

Answer 1

我卸载了matplotlib的2.2.2版本，并安装了marplotlib的1.1.2版本。我现在可以做put.show()了

Answer 2

我也有同样的问题。我使用的是Linux，程序包pybinding安装在

/usr/lib/python3.6/site-packages/pybinding/support/

您可以更正错误，更改allow_rasterization模块的导入模块，更改文件colletion.py

/usr/lib/python3.6/site-packages/pybinding/support/colletion.py

第一条线

import numpy as np
from matplotlib.collections import Collection, allow_rasterization

至

import numpy as np
from matplotlib.collections import Collection
from matplotlib.artist import allow_rasterization

您可以更正与matplotlib 1.1.2上以前版本相关的绘图问题，因为现在pybinding包使用了matplotlib 2.2.2。

Answer 3

进入文件"C:\xampp7\Python\lib\site-packages\pybinding\support\collections.py“并将命令行修改为：”从matplotlib.collections导入Collection#，从matplotlib.artist导入allow_rasterization修改allow_rasterization“。