I was trying to print a plotly plot in Visual Studio Code and caught this error:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-40-e07b5feb5ded> in <module>
30
31 fig.update_layout(height=nrows*500)
---> 32 fig.show()
C:\Python38\lib\site-packages\plotly\basedatatypes.py in show(self, *args, **kwargs)
3147 import plotly.io as pio
3148
-> 3149 return pio.show(self, *args, **kwargs)
3150
3151 def to_json(self, *args, **kwargs):
C:\Python38\lib\site-packages\plotly\io\_renderers.py in show(fig, renderer, validate, **kwargs)
383
384 if not nbformat or LooseVersion(nbformat.__version__) < LooseVersion("4.2.0"):
--> 385 raise ValueError(
386 "Mime type rendering requires nbformat>=4.2.0 but it is not installed"
387 )
ValueError: Mime type rendering requires nbformat>=4.2.0 but it is not installed
The code I used:
import plotly.graph_objects as go
from plotly.subplots import make_subplots
import plotly.express as px
df = df[df['Data']>0]
df['Timestamp'] = pd.to_datetime(df['Timestamp'])
df = df[(df['Id'] ==1)|(df['Id'] ==6)]
dfp = pd.pivot_table(df,
values='Data',
index=['Timestamp'],
columns=['Id'],
)
nrows = len(dfp.columns)
fig = make_subplots(rows=nrows,
cols=1,
subplot_titles=['Id '+str(c) for c in dfp.columns])
# add traces
x = 1
for i, col in enumerate(dfp.columns):
fig.add_trace(go.Scatter(x=dfp.index, y=dfp[col].values,
name = 'Id '+str(col),
mode = 'lines',
),
row=i+1,
col=1)
fig.update_layout(height=nrows*500)
fig.show()
I tried pip install nbformat
in the console following this feed on GitHub and this question on stackoverflow
but it did not work.
However, it seems the code could run with the last 2 rows removed:
fig.update_layout(height=nrows*500)
fig.show()
Method 1
reinstall ipykernel via
pip install ipykernel
Method 2
pip install --upgrade nbformat