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"""
Embedded Python Blocks:
Each this file is saved, GRC will instantiate the first class it finds to get
ports and parameters of your block. The arguments to __init__ will be the
parameters. All of them are required to have default values!
"""
from gnuradio import gr
from pmt import *
class change_sign_of_dict_elements(gr.basic_block):
def __init__(self): # only default arguments here
gr.basic_block.__init__(
self,
name='Change sign of elts in dict',
in_sig=[],
out_sig=[]
)
self.message_port_register_in(intern("dict_in"))
self.message_port_register_out(intern("dict_out"))
self.set_msg_handler(intern("dict_in"), self.change_sign)
def change_sign(self, msg):
if is_dict(msg):
d = to_python(msg)
#print d
for key, value in d.items():
d[key] *= -1
self.message_port_pub(intern("dict_out"), to_pmt(d))
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