Cannot use the API Key

import plotly.plotly as py
import plotly.tools as tls
from plotly.graph_objs import *

tls.set_credentials_file(“myusername”, “my_API_Key”)
py.sign_in(“myusername”, “my_API_Key”)

PlotlyRequestError: Aw, snap! You tried to use our API as the user ‘myuserbame’, but the supplied API key doesn’t match our records. You can view your API key at plot.ly/settings.

If you already have an username and you generated an API key, then delete the line
tls.set_credentials_file(“myusername”, “my_API_Key”) from your code.

In case you haven’t a Plotly account yet, read this answer to similar question:

I just realized that it works ONLY on the jupyter notebook on localhost. When I try the API on the jupyter notebook on the Virtual Machine hosted on Google Cloud Platform,it does not work and produce the error which I have listed above.