Activity

1. gvwilson

   added

   bugsomething brokensomething broken

   P2considered for next cycleconsidered for next cycle

   P3backlogbacklog

   and removed

   P2considered for next cycleconsidered for next cycle

   on Sep 3, 2024
2. sOnU1002 commented on Oct 2, 2024

   

   sOnU1002

   on Oct 2, 2024

   More actions

   Minimum Working Example (MWE):
   Here is a minimal example that reproduces the issue:

   python
   Copy code
   import plotly.graph_objects as go

   fig = go.Figure()

   Raises TypeError when used in batch mode

   with fig.batch_update():
   fig.add_vline(1)
   When batch_update() is removed, the code works fine:

   python
   Copy code
   import plotly.graph_objects as go

   fig = go.Figure()

   Works without batch mode

   fig.add_vline(1)
   Expected Behavior:
   The add_vline() method should be compatible with the batch_update() context and should not raise any errors. The vertical line should be added while benefitting from the performance improvements of batch mode.

   Actual Behavior:
   When the add_vline() method is called within batch_update(), a TypeError is raised, which appears to be related to appending a NoneType to a string at line 3995 in basedatatypes.py of Plotly's internal code.