How to use pandas.to_clipboard with comma decimal separator

Question

How can I copy a DataFrame to_clipboard and paste it in excel with commas as decimal?

In R this is simple.

write.table(obj, 'clipboard', dec = ',')

But I cannot figure out in pandas to_clipboard.

I unsuccessfully tried changing:

import locale
locale.setlocale(locale.LC_ALL, '')

Spanish_Argentina.1252

or

df.to_clipboard(float_format = '%,%')

Answer 1

There are some different ways to achieve this. First, it is possible with float_format and your locale, although the use is not so straightforward (but simple once you know it: the float_format argument should be a function that can be called):

df.to_clipboard(float_format='{:n}'.format)

A small illustration:

In [97]: df = pd.DataFrame(np.random.randn(5,2), columns=['A', 'B'])

In [98]: df
Out[98]:
          A         B
0  1.125438 -1.015477
1  0.900816  1.283971
2  0.874250  1.058217
3 -0.013020  0.758841
4 -0.030534 -0.395631

In [99]: df.to_clipboard(float_format='{:n}'.format)

gives:

           A         B
0    1,12544  -1,01548
1   0,900816   1,28397
2    0,87425   1,05822
3 -0,0130202  0,758841
4 -0,0305337 -0,395631

---

If you don't want to rely on the locale setting but still have comma decimal output, you can do this:

class CommaFloatFormatter:
    def __mod__(self, x):
        return str(x).replace('.',',')

df.to_clipboard(float_format=CommaFloatFormatter())

or simply do the conversion before writing the data to clipboard:

df.applymap(lambda x: str(x).replace('.',',')).to_clipboard()