I'm writing a simple Python script which will take a json formatted config file, apply it to a template file (load the file as a string, then apply the string.format method), and then write the output to an output file.
The config file looks a little like this (JSON):
{
"param1": "param",
"param2": [
"list1": "list item 1",
"list2": "list item 2"
]
}
The template file looks a little like this (plain text):
Param1={param1}
List1={param2[0].list1}
List2={param2[0].list2}
And the python script looks a lot like this (Python):
#! /usr/bin/env python
import sys, json
if len(sys.argv) < 4:
sys.exit("Invalid arguments")
config_file = open(sys.argv[1])
config_json = json.loads(config_file.read())
config_file.close()
template_file = open(sys.argv[2])
template_data = template_file.read()
template_file.close()
output_data = template_data.format(**config_json)
output_file = open(sys.argv[3], 'w')
output_file.write(output_data)
output_file.close()
The Python interpreter errors with the following:
AttributeError: 'dict' object has no attribute 'list1'
Can someone explain to me how to fix this problem? If possible I would like to avoid changing the Python script and favour the correct syntax for referencing the properties in the param2 array of objects, if such a syntax exists.
