from pytriqs.gf.local import GfReFreq
from pytriqs.archive import HDFArchive
from math import pi

R = HDFArchive('myfile.h5', 'r') 
 
from pytriqs.plot.mpl_interface import oplot, plt
plt.xrange(-1,1) 
plt.yrange(0,7) 

for name, g in R.items() :  # iterate on the elements of R, like a dict ...
    oplot( (- 1/pi * g).imag, "-o", name = name)

p.savefig("./tut_ex3b.png")