How to pass data between def - python -

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i unsure if going right way advice ace !

basically have code :

def recvcell(sock, waitfor = 0):     while true:         hdr = sock.recv(3)         circid, cmd = struct.unpack(">hb", hdr[0:3])         ln = 509         if cmd == 7 or cmd >= 128:             ln = struct.unpack(">h", sock.recv(2))[0]         pl = sock.recv(ln)          if cmd == waitfor or waitfor == 0:             return { 'circid': circid, 'cmd': cmd, 'len': ln, 'pl': pl}  # builds cell def buildcell(circid, command, payload):     cell = struct.pack(">hb", circid, command)     if command == 7 or command >= 128:         cell += struct.pack(">h", len(payload))     else:         payload += "\x00" * (509 - len(payload))      cell += payload     return cell  # builds version cell's payload def buildversions(acceptversions):     pkt = ''     v in acceptversions:         pkt += struct.pack(">h", v)     return pkt  verpl = buildversions([ 3 ]) vercell = buildcell(0, 7, verpl)  print "packet send : ", vercell ssl_sock.send(vercell)  srv_netinfocell = recvcell(ssl_sock, 8) #process netinfo cell here print srv_netinfocell  def decodnetinfo(pl):     payload = pl     tm = struct.unpack(">l", payload[0:4])     our_or_ip_version = struct.unpack(">b", payload[4])[0]     our_or_addr_len = struct.unpack(">b", payload[5])[0]      return{}         if our_or_addr_len == 4:         our_op_ip = struct.unpack(">bbbb", payload[6:10])          our_ip_version = 4         num_their_ips = struct.unpack(">b", payload[10])[0]         len_their_ips = struct.unpack(">b", payload[12][0]

which sends packet, , recieves it,

what trying focus on decodnetinfo bit

what want here call how , retrieve pl recvcell function if packet recieved cmd ==8

how can pass data recvcell decodnetinfo ?

thanks

edit::

def recvcell(sock, waitfor = 0):     while true:         hdr = sock.recv(3)         circid, cmd = struct.unpack(">hb", hdr[0:3])         ln = 509         if cmd == 7 or cmd >= 128:             ln = struct.unpack(">h", sock.recv(2))[0]         pl = sock.recv(ln)          if cmd == waitfor or waitfor == 0:             return { 'circid': circid, 'cmd': cmd, 'len': ln, 'pl': pl}  def decodenetinfo(pl):     return  "in decode net info"     return { 'pl': pl}   srv_netinfocell = recvcell(ssl_sock, 8) decodenetinfo(srv_netinfocell['pl']) #process netinfo cell here print srv_netinfocell

i have done not 2 return statements decode netinfo ideas? thanks

the return of recvcell() following dictionary

return { 'circid': circid, 'cmd': cmd, 'len': ln, 'pl': pl}

so after call function, pass key dictionary value

srv_netinfocell = recvcell(ssl_sock, 8) decodnetinfo(srv_netinfocell['pl'])

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