Hi,

For org tables generated in Python, I use python-tabulate. Actually, I forked the original library to include the possibility of generating the latex attributes from Python too.

Something like:

--- cut here ---

#+BEGIN_SRC python :results value raw :exports results
import math
import pandas as pd
import tabulate

xvals = [math.pi * i / 5 for i in range(10)]
df = pd.DataFrame({
    'x': xvals,
    'sin(x)' : [math.sin(xvals[i]) for i in range (10)],
    'cos(x)' : [math.cos(xvals[i]) for i in range (10)]
})

attrs=':environment longtable :align p{2cm}p{2cm}p{2cm} :placement [h] :center t'
return tabulate.tabulate(
    df,
    headers=df.columns, tablefmt='orgtbl', floatfmt=".3f",
    caption='Table exported from Python with extended tabulate',
    label='labextend',
    attr_latex=attrs,
    showindex=False)
#+END_SRC
#+RESULTS:

--- cut here ---

Take a look at https://github.com/paaguti/python-tabulate if it sounds interesting. 

CAVEAT: the author of python-tabulate wasn't very excited about this ;-)

Best, /PA