Formatting thousand separator for integers in a pandas dataframe

Question

I\'m trying to use \'{:,}\'.format(number) like the example below to format a number in a pandas dataframe:

# This works for floats and integers
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Answer 1

You can always cast your table to float64 and then use float_format as you like, especially if you are constructing a small table for viewing purposes. Instead of dealing with ints and floats separately this gives a quick solution.

df.astype('float64',errors='ignore').to_html(float_format=lambda x: format(x,',.2f'))

errors='ignore' is there to prevent raising an exception when a column can not be converted to floats, like strings.