Plotly.express not working with Pandas Dataframe

[JS-Aibel]

The example below results in an error message saying “AttributeError: 'DataFrame' object has no attribute 'append'. Did you mean: '_append'?”. The plotly example is taken from https://plotly.com/python/radar-chart/.
Running Plotly Version: 5.14.1 and Pandas Version: 2.0.1.

import plotly.express as px
import pandas as pd
df = pd.DataFrame(dict(
    r=[1, 5, 2, 2, 3],
    theta=['processing cost','mechanical properties','chemical stability',
           'thermal stability', 'device integration']))
fig = px.line_polar(df, r='r', theta='theta', line_close=True)
fig.show()

[Tauvic]

Yes got the same issue. Running Plotly Version: 5.14.1 and Pandas Version: 2.0.1.

2023-04-29 17:09:37.289 Uncaught app exception
Traceback (most recent call last):
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.dict)
File "/app/resumebuilderapp/pages/3_Summary.py", line 84, in
fig = px.line_polar(d, r='years', theta='expertise',color='proficiency',
File "/home/appuser/venv/lib/python3.9/site-packages/plotly/express/_chart_types.py", line 998, in line_polar
return make_figure(args=locals(), constructor=go.Scatterpolar)
File "/home/appuser/venv/lib/python3.9/site-packages/plotly/express/_core.py", line 2173, in make_figure
patch, fit_results = make_trace_kwargs(
File "/home/appuser/venv/lib/python3.9/site-packages/plotly/express/_core.py", line 271, in make_trace_kwargs
trace_data = trace_data.append(trace_data.iloc[0])
File "/home/appuser/venv/lib/python3.9/site-packages/pandas/core/generic.py", line 5989, in getattr
return object.getattribute(self, name)
AttributeError: 'DataFrame' object has no attribute 'append'

[Satoshi-Sh]

Same here. Seems like the append function was depreciated, and it needs to be replaced by concat.