iframe renderer fails in JupyterLab

[naterush]

If you run the following code in a JupyterLab cell:

import plotly.express as px
import pandas as pd
df = pd.DataFrame({'A': [1, 2, 3], 'B': [3, 4, 5]})
fig = px.line(df, x='A', y='B')
fig.show(renderer="iframe")

You get the following error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[8], line 5
      3 df = pd.DataFrame({'A': [1, 2, 3], 'B': [3, 4, 5]})
      4 fig = px.line(df, x='A', y='B')
----> 5 fig.show(renderer="iframe")

File ~/temps/2023-01-22-1674410931/venv/lib/python3.9/site-packages/plotly/basedatatypes.py:3390, in BaseFigure.show(self, *args, **kwargs)
   3357 """
   3358 Show a figure using either the default renderer(s) or the renderer(s)
   3359 specified by the renderer argument
   (...)
   3386 None
   3387 """
   3388 import plotly.io as pio
-> 3390 return pio.show(self, *args, **kwargs)

File ~/temps/2023-01-22-1674410931/venv/lib/python3.9/site-packages/plotly/io/_renderers.py:388, in show(fig, renderer, validate, **kwargs)
    385 fig_dict = validate_coerce_fig_to_dict(fig, validate)
    387 # Mimetype renderers
--> 388 bundle = renderers._build_mime_bundle(fig_dict, renderers_string=renderer, **kwargs)
    389 if bundle:
    390     if not ipython_display:

File ~/temps/2023-01-22-1674410931/venv/lib/python3.9/site-packages/plotly/io/_renderers.py:296, in RenderersConfig._build_mime_bundle(self, fig_dict, renderers_string, **kwargs)
    293             if hasattr(renderer, k):
    294                 setattr(renderer, k, v)
--> 296         bundle.update(renderer.to_mimebundle(fig_dict))
    298 return bundle

File ~/temps/2023-01-22-1674410931/venv/lib/python3.9/site-packages/plotly/io/_base_renderers.py:570, in IFrameRenderer.to_mimebundle(self, fig_dict)
    567     iframe_height = str(525 + iframe_buffer) + "px"
    569 # Build filename using ipython cell number
--> 570 filename = self.build_filename()
    572 # Make directory for
    573 try:

File ~/temps/2023-01-22-1674410931/venv/lib/python3.9/site-packages/plotly/io/_base_renderers.py:613, in IFrameRenderer.build_filename(self)
    611 ip = IPython.get_ipython() if IPython else None
    612 if ip:
--> 613     cell_number = next(ip.history_manager.get_tail(1), (0, -1, ""))[1] + 1
    614 else:
    615     cell_number = 0

TypeError: 'list' object is not an iterator

If you remove renderer="iframe", this completes correctly.

Relevant versions pip list | grep -E 'pandas|jupyter|plotly':

jupyter_client           7.4.9
jupyter_core             5.1.3
jupyter-events           0.6.3
jupyter_server           2.1.0
jupyter_server_terminals 0.4.4
jupyterlab               3.5.2
jupyterlab-pygments      0.2.2
jupyterlab_server        2.19.0
pandas                   1.5.3
plotly                   5.12.0

I have verified this bug is reproducible on both Mac Safari and Mac Chrome.

Let me know if any other additional information is helpful!

[nicolaskruchten]

Thanks for the clear bug report! I have a fix and will release it this week, as early as tomorrow :)