Plotly and cufflinks are not working with jupyter notebook

Hello,

I have used plotyly in my jupyter notebook before today and it worked just fine. But now, it is no longer working Here is the code which I ran to launch plotly and cufflinks in my jupyter notebook: import plotly.plotly as py from plotly.offline import download_plotlyjs, init_notebook_mode, plot, iplot import cufflinks as cf cf.go_offline init_notebook_mode(connected=True)

And when I tried to run this code:

train['Fare'].iplot(kind = 'hist', bins = 30) ,

it gave this error:

Aw, snap! We don't have an account for ''. Want to try again? You can authenticate with your email address or username. Sign in is not case sensitive.

Don't have an account? plot.ly

Questions? [e-mail]

PlotlyError: Because you didn't supply a 'file_id' in the call, we're assuming you're trying to snag a figure from a url. You supplied the url, '', we expected it to start with 'https://plot.ly'. Run help on this function for more information.

I have tried every possible way I know to fix this. Any other useful suggestion will be appreciated.

[BharatKoti]

step 1 : Create an account on Plotly Step 2 : Generate an API, which is under settings Step 3: Please insert your username and api key and run the following code import plotly plotly.tools.set_credentials_file(username=’ ‘, api_key=’ ')

[JWSertl]

my same problem was solved by cf.go_offline() instead of cf.go_offline