Get all (readable) attributes value and set it to another (only settable)

gistfile1.py

from pymel.core import *
# get all (readable) attributes value
o = selected()[0]
attrs = {}
for a in listAttr(o):
    try:
        v = o.attr(a).get()
        attrs[a] = v
    except Exception, e:
        print e

# -------------------------------------------------
# set to another (only settable)
o = selected()[0]
for a in listAttr(o):
    try:
        o.attr(a).set(attrs[a])
    except Exception, e:
        print e