python - How to change numeric data format for html output -


i have code produce pandas dataframe , send email in html format.
problem have hard change scientific format of numeric numbers general in style

i tried set float format, did not work. 

pd.options.display.float_format = '{:20,.2f}'.format

output:

col        col b 1.00e+06    2.28e+06 3.00e+07    -2.54e+07

expected out:

col        col b 1000420      2281190 30030200    -25383100

i tried , worked:

df = pd.dataframe([[3.371e17,9.82173e15],[8e12,8e8]],columns=['a','b'])  df.to_html(float_format='{:20,.2f}'.format)

this not changing formatting of df in general, html output, is:

<table border="1" class="dataframe">    <thead>      <tr style="text-align: right;">        <th></th>        <th>a</th>        <th>b</th>      </tr>    </thead>    <tbody>      <tr>        <th>0</th>        <td>337,100,000,000,000,000.00</td>        <td>9,821,730,000,000,000.00</td>      </tr>      <tr>        <th>1</th>        <td>8,000,000,000,000.00</td>        <td>800,000,000.00</td>      </tr>    </tbody>  </table>


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