Question

This is different from retrieving variable/object name at run time.

2G_Functions={'2G_1':2G_f1,'2G_2':2G_f2}
3G_Functions={'3G_1':3G_f1,'3G_2':3G_f2}
myFunctionMap=[2G_Functions,3G_Functions]
for i in myFunctionMap:
    print i.??? "\n"
    for j in i:
            print str(j)

I want the output look like below.

2G_Functions:

2G_1

2G_2

3G_Functions:

3G_1

3G_2

How can I get the name of dictionary variable in my code?I dont know which I am calling in the loop to know its name beforehand.

Answer 1

1. You can’t. The myFunctionMap list contains the objects, not the name attached to them 2 lines above. BTW, calling a list variable “map” isn’t a good practice, maps are usually dictionaries.
2. You can’t start a variable name with a digit, so 2G_Functions and 3G_Functions won’t work.
3. You can sidestep the problem by creating a dictionary with appropriate names

e.g.

myFunctionMap = {
  "2G_Functions" : { ... },
  "3G_Functions" : { ... },
}

for (name, functions) in myFunctionMap.iteritems():
  print name
  for func in functions.keys():
    print func