带有 plotly 的基本条形图

Question

I try to do a bar charts, with this code

import plotly.plotly as py
import plotly.graph_objs as go

data = [go.Bar(
            x=['giraffes', 'orangutans', 'monkeys'],
            y=[20, 14, 23]
    )]

py.iplot(data, filename='basic-bar')

But I got this error :

 PlotlyLocalCredentialsError Traceback (most recent call last) <ipython-input-42-9eae40f28f37> in <module>() 3 y=[20, 14, 23] 4 )] ----> 5 py.iplot(data, filename='basic-bar') C:\\Users\\Demonstrator\\Anaconda3\\lib\\site-packages\\plotly\\plotly\\plotly.py

in iplot(figure_or_data, **plot_options) 149 if 'auto_open' not in plot_options: 150 plot_options['auto_open'] = False --> 151 url = plot(figure_or_data, **plot_options) 152 153 if isinstance(figure_or_data, dict):

 C:\\Users\\Demonstrator\\Anaconda3\\lib\\site-packages\\plotly\\plotly\\plotly.py

in plot(figure_or_data, validate, **plot_options) 239 240 plot_options = _plot_option_logic(plot_options) --> 241 res = _send_to_plotly(figure, **plot_options) 242 if res['error'] == '': 243 if plot_options['auto_open']:

 C:\\Users\\Demonstrator\\Anaconda3\\lib\\site-packages\\plotly\\plotly\\plotly.py

in _send_to_plotly(figure, **plot_options) 1401 cls=utils.PlotlyJSONEncoder) 1402 credentials = get_credentials() -> 1403 validate_credentials(credentials) 1404 username = credentials['username'] 1405 api_key = credentials['api_key']

C:\\Users\\Demonstrator\\Anaconda3\\lib\\site-packages\\plotly\\plotly\\plotly.py

in validate_credentials(credentials) 1350 api_key = credentials.get('api_key') 1351 if not username or not api_key: -> 1352 raise exceptions.PlotlyLocalCredentialsError() 1353 1354

 PlotlyLocalCredentialsError: Couldn't find a 'username', 'api-key' pair for you on your local machine. To sign in temporarily (until you stop running Python), run: >>> import plotly.plotly as py >>> py.sign_in('username', 'api_key') Even better, save your credentials permanently using the 'tools' module: >>> import plotly.tools as tls >>> tls.set_credentials_file(username='username', api_key='api-key') For more help, see https://plot.ly/python.

Any idea to help me please?

Thank you

Answer 1

You need to pay attention to the traceback in the error. In this case, it's even more helpful than usual. The solution is given to you here:

PlotlyLocalCredentialsError: 
Couldn't find a 'username', 'api-key' pair for you on your local machine. To sign in temporarily (until you stop running Python), run:
>>> import plotly.plotly as py
>>> py.sign_in('username', 'api_key')

Even better, save your credentials permanently using the 'tools' module:
>>> import plotly.tools as tls
>>> tls.set_credentials_file(username='username', api_key='api-key')

For more help, see https://plot.ly/python. 

So, enter your credentials used when you signed up to the site before you attempt to make a plot. You may have to sign in in a web browser and request for an API key to be generated, it is not the same as your password.