在 pyvis 中我总是得到这个错误：“AttributeError: 'NoneType' object has no attribute 'render'”

Question

我想用最新版本的pyvis和python 3.9.6版本做一个网络可视化：

from pyvis.network import Network
g = Network()
g.add_node(0)
g.add_node(1)
g.add_edge(0, 1)
g.show('test.html')

每次我执行

g.show()

我得到这个错误：

Traceback (most recent call last):
  File "/Users/tom/Library/Mobile Documents/com~apple~CloudDocs/Projekte/Coding_/f1 standings/test2.py", line 3, in <module>
    g.show('nx.html')
  File "/Users/tom/Library/Python/3.9/lib/python/site-packages/pyvis/network.py", line 546, in show
    self.write_html(name, open_browser=False,notebook=True)
  File "/Users/tom/Library/Python/3.9/lib/python/site-packages/pyvis/network.py", line 515, in write_html
    self.html = self.generate_html(notebook=notebook)
  File "/Users/tom/Library/Python/3.9/lib/python/site-packages/pyvis/network.py", line 479, in generate_html
    self.html = template.render(height=height,
AttributeError: 'NoneType' object has no attribute 'render'

我尝试更新 pyvis，我更改了代码中的各种细节，我导入了所有 pyvis.network，但没有任何结果。

Answer 1

默认

self.template = None

。您必须使用

Network().set_template

设置此值