accept int for rows and cols in fig.add_traces #2410
Description
At the moment if you want to add several traces to the same subplot you have to pass an iterable to the rows and cols arguments of fig.add_traces.
import plotly.express as px
df = px.data.tips()
fig = px.scatter(df, x='total_bill', y='tip', color='day')
from plotly.subplots import make_subplots
fig2 = make_subplots(1, 2)
fig2.add_traces(fig.data, rows=[1,]*len(fig.data), cols=[1,]*len(fig.data))
fig2.show()
We could also accept an int here, in which case all traces would be added to the same subplot.