On 30/10/17 08:44, zljubi...@gmail.com wrote:
> Hi,
>
> the following code never applies style and I cannot figure out why.
> Can someone please help?
>
> import pandas as pd
>
> def function2(row):
> if row.A == True:
> color = '#FF0000'
> else:
> color = '#00FF00'
>
> background_color = 'background-color: {}'.format(color)
>
> return [background_color] * len(row.values)
>
> idx = pd.date_range('01.01.2017', periods=7, freq='D')
> A = [False, True, True, False, True, False, True]
> B = np.random.randn(7)
> C = np.random.randn(7)
>
> data = { 'A' : [False, True, True, False, True, False, True],
> 'B' : np.random.randn(7),
> 'C' : np.random.randn(7)
> }
>
> df = pd.DataFrame(data, index=idx)
>
> df.style.apply(function2, axis=1)
This is not an in-place operation: it returns a style which you can then
render.
style = df.style.apply(function2, axis=1)
html = style.render()
appears to work.
>
> html = df.style.render()
>
> if '#FF0000' in html or '#00FF00' in html:
> print('style applied')
> else:
> print('style not applied')
>
> Regards.
>
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