running_script.sh

$ python script.py
Printing current values ...
Object a contains value 1
Object b contains value 2
Writing data for loop number 0 ...
Change json data (y/n) ? --type 'exit' to quit-- : y

test.py

jsonDict = dict(a=1,b=2)
i=0

print('Printing current values ...')

for key, modbusObject in jsonDict.items():
    print("Object {} contains value {}".format(key, modbusObject))

print('Writing data for loop number '+str(i)+' ...')

# server.send_message_to_all(jsonDict)
#print('ho ho ho')
i += 1          

cmd = raw_input('Change json data (y/n) ? --type \'exit\' to quit-- : ')