Warning when doubly linked list is defined gloablly

[chand]

Hi All..,


Sorry for mailing the code which does't even compile !!

Please find below the code which compiles. Please let me know how to
resolve this warning message..!!
SyntaxWarning: name 'g_opt_list' is used prior to global declaration


import os,sys,re,string,math
from xml.dom import minidom, Node
from Layer import Layer
from LMessage import *
from Param import *
from Message import *
#from message_mapping import *
#from protocol_mapping import *
#from symbol_mapping import *
#from opt_list_mapping import *
g_del_opt_list =[[],[],[],[],[],[],[]]
sflag = 0
index=0
del_index=0
radflag = 0
depth = 0
xmlflag = 0
opt_param_list = []
del_opt_param_list = []
#g_opt_list = []
MTAS_HOME="/home/chandras/XML_FILES/"
SIG_STANDARD_HOME = "/home/chandras/SIGNALLING_STANDARD/ANSI_SS7/"
reverse_symbols=['<','>','~']
layers=['MTP3','SCCP','IOS','CDTAPM2','CDTAPC2','ISUP','IS-41D-SQA']
GUI_API_COMMAND_LIST = [
                        "NEW",
                        "ADD_OPTIONAL_PARAM",
                        "DELETE_OPTIONAL_PARAM",
                        "DELETE_LAYER",
                        "RENAME"
                        ]

BASE2 = "01"
BASE10 = "0123456789"
BASE16 = "0123456789ABCDEF"

Message_obj = Message()
filename =""
buffer = []
#LIST = []
def Process_GUI_Command(arg):
        global Message_obj
        global filename
        print "### COMMAND ###", arg[0]
        save_fd = os.dup(1)
        if arg[0] ==  "DELETE_OPTIONAL_PARAM":
                out_file = file('/tmp/te6.txt', 'w+')
        elif arg[0] ==  "ADD_OPTIONAL_PARAM":
                out_file = file('/tmp/te3.txt', 'w+')
        else :
                out_file = file('/tmp/te.txt', 'w+')
        os.dup2(out_file.fileno(), sys.stdout.fileno())

        if      arg[0]  ==  "NEW" :
                global g_opt_list
                Message_obj = Message()
                layerList = listLayers("ANSI_Layers")
                layerList = str(layerList)
                layerList = layerList.replace(",","")
                for i in range(0,len(g_opt_list)):
                        g_opt_list[i] = []
                os.dup2(save_fd, 1)
                return layerList

        elif    arg[0]  ==   "ADD_OPTIONAL_PARAM" :
                global g_opt_list
                global layers
                global index
                message_name = ""
                layer_name   = arg[1]
                #print "Layer Name", layer_name
                for layer in layers:
                        if layer == layer_name:
                                if
OPT_LIST_MAPPING.has_key(layer_name):
                                        index =
OPT_LIST_MAPPING[layer_name]
                                        break

                if arg[2] != 'Null':
                        optional_parameter_name =
str(arg[2]).replace("+",",")
                        for symbol in reverse_symbols:
                                if symbol in optional_parameter_name:
                                        if
SYMBOL_REVERSE_MAPPING.has_key(symbol):
                                                old_symbol =
SYMBOL_REVERSE_MAPPING[symbol]
                                                optional_parameter_name
= optional_parameter_name.replace(symbol,old_symbol)

                        Message_obj.AddParam(message_name,layer_name,
optional_parameter_name )
                else : optional_parameter_name= 'Null'

                add_delete_flag = 0

                param_name = optional_parameter_name
                show_opts(layer_name,add_delete_flag,param_name)
                if int(add_delete_flag) == 0:
                        add_delete_flag = 0
                        if  optional_parameter_name != "Null":
                                optList =
Message_obj.showOptionalParameters(layer_name,add_delete_flag,optional_parameter_name)

g_opt_list[int(index)].append(optional_parameter_name)
                                for i in g_opt_list[int(index)]:
                                        if
g_opt_list[int(index)].count(i) == 1:
                                                optList =
Message_obj.showOptionalParameters(layer_name,add_delete_flag,i)

displayoptparams(optList,layer_name,0,"Null")
                                i= "Null"
                                optional_parameter_name = "Null"
                        add_delete_flag = 1
                os.dup2(save_fd, 1)

        else:
                print "Invalid Option"


def  show_opts(layer_name,add_delete_flag,param_name):
        global index
        global g_opt_list
        #param_name = "Null"
        List =
Message_obj.showOptionalParameters(layer_name,add_delete_flag,"Null")
        if (len(List)== 0)  :
                return "None"

displayoptparams(List,layer_name,add_delete_flag,Message_obj._message_name)
        if param_name == 'Null':
                for i in g_opt_list[int(index)]:
                        if g_opt_list[int(index)].count(i) == 1:
                                optList =
Message_obj.showOptionalParameters(layer_name,add_delete_flag,i)

displayoptparams(optList,layer_name,0,"Null")
                add_delete_flag = 1
                return "None"



def main():

        #choice = sys.argv[1]
        print "####### choice ",
        #Process_GUI_Command("NEW")
        #list=CMSR.showOptionalParameters("SCCP",0)
        #CMSR.saveXMLfile("CMSR2.xml","CMSR")

if __name__ == '__main__':
    main()






















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































chand wrote:
> Hi.,
>
> In my api.py file 'g_opt_list' is defined globally
> g_opt_list =[[],[],[],[],[],[],[]]
>
> I am using this global list in the fucntion
>
> def function ():
>     gloabl g_opt_list
>
> when I run the py file, I am getting the Following Error
>
> SyntaxWarning: name 'g_opt_list' is used prior to global declaration
>
> Please let me know how to remove this error
> 
> --BestRegars.,
> --Chandra