Check if 'hosts' file exists

We need to check that the file exists before trying to update it, and if it doesn't we try to create an empty 'hosts' file.

updateHostsFile.py

@@ -102,6 +102,15 @@ def main():
 
 # Prompt the User
 def promptForUpdate():
+	
+	# Create hosts file if it doesn't exists
+	if not os.path.isfile(os.path.join(BASEDIR_PATH, 'hosts')):
+		try:
+			file = open(os.path.join(BASEDIR_PATH, 'hosts'), 'w+').close()
+		except:
+			printFailure("ERROR: No 'hosts' file in the folder, try creating one manually")
+			sys.exit()
+	
 	response = query_yes_no("Do you want to update all data sources?")
 	if (response == "yes"):
 		updateAllSources()