title: iplot() is not working. Why ? If it need account?
body: <p>I just tried the code from <a href="https://plot.ly/python/gauge-charts/" rel="nofollow noreferrer">https://plot.ly/python/gauge-charts/</a> but even though its not working. can u please guide me where i am going wrong ?
  I am new bee to python and plotly as well.
  Here's the code :</p>
  
  <pre><code>import plotly.plotly as py
  
  import plotly.graph_objs as go
  from plotly.offline import *
  
  base_chart = {
      "values": [40, 10, 10, 10, 10, 10, 10],
      "labels": ["-", "0", "20", "40", "60", "80", "100"],
      "domain": {"x": [0, .48]},
      "marker": {
          "colors": [
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)',
              'rgb(255, 255, 255)'
          ],
          "line": {
              "width": 1
          }
      },
      "name": "Gauge",
      "hole": .4,
      "type": "pie",
      "direction": "clockwise",
      "rotation": 108,
      "showlegend": False,
      "hoverinfo": "none",
      "textinfo": "label",
      "textposition": "outside"
  }
  meter_chart = {
      "values": [50, 10, 10, 10, 10, 10],
      "labels": ["Log Level", "Debug", "Info", "Warn", "Error", "Fatal"],
      "marker": {
          'colors': [
              'rgb(255, 255, 255)',
              'rgb(232,226,202)',
              'rgb(226,210,172)',
              'rgb(223,189,139)',
              'rgb(223,162,103)',
              'rgb(226,126,64)'
          ]
      },
      "domain": {"x": [0, 0.48]},
      "name": "Gauge",
      "hole": .3,
      "type": "pie",
      "direction": "clockwise",
      "rotation": 90,
      "showlegend": False,
      "textinfo": "label",
      "textposition": "inside",
      "hoverinfo": "none"
  }
  layout = {
      'xaxis': {
          'showticklabels': False,
          'autotick': False,
          'showgrid': False,
          'zeroline': False,
      },
      'yaxis': {
          'showticklabels': False,
          'autotick': False,
          'showgrid': False,
          'zeroline': False,
      },
      'shapes': [
          {
              'type': 'path',
              'path': 'M 0.235 0.5 L 0.24 0.65 L 0.245 0.5 Z',
              'fillcolor': 'rgba(44, 160, 101, 0.5)',
              'line': {
                  'width': 0.5
              },
              'xref': 'paper',
              'yref': 'paper'
          }
      ],
      'annotations': [
          {
              'xref': 'paper',
              'yref': 'paper',
              'x': 0.23,
              'y': 0.45,
              'text': '50',
              'showarrow': False
          }
      ]
  }
  
  # we don't want the boundary now
  base_chart['marker']['line']['width'] = 0
  
  fig = {"data": [base_chart, meter_chart],
         "layout": layout}
  # fig.show()
  
  py.iplot(fig, filename='gauge-meter-chart')
  </code></pre>
  
  <p>Error message is :</p>
  
  <pre><code>Aw, snap! We didn't get a username with your request.
  
  Don't have an account? https://plot.ly/api_signup
  
  Questions? accounts@plot.ly
  Traceback (most recent call last):
    File "graph.py", line 101, in &lt;module&gt;
      py.iplot(fig, filename='gauge-meter-chart')
    File "C:\Users\Sam\Anaconda2\envs\py35\lib\site-packages\plotly\plotly\plotly.py", line 164, in iplot
      return tools.embed(url, **embed_options)
    File "C:\Users\Sam\Anaconda2\envs\py35\lib\site-packages\plotly\tools.py", line 396, in embed
      return PlotlyDisplay(url, width, height)
    File "C:\Users\Sam\Anaconda2\envs\py35\lib\site-packages\plotly\tools.py", line 1440, in __init__
      self.embed_code = get_embed(url, width=width, height=height)
    File "C:\Users\Sam\Anaconda2\envs\py35\lib\site-packages\plotly\tools.py", line 301, in get_embed
      "".format(url, plotly_rest_url))
  plotly.exceptions.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.
  </code></pre>
  
  <p>Actually i want to built a guage having some stroke and their values written above them. so Anyone can help me ,i would be thankful. Thanks in advance.</p>