Json file decode in python

Question

I'm working with python, I have a json structure into a dictionary and I have exported it into a file. Now I need to reload the structure from the file, I want to reload it into a dictionary (in order to update it) but I'm experiencing some problems. This is my code:

#export the structure
with open('data.json','w') as f:
 data = {}
 data['test'] = '1'
 f.write(json.dumps(data))
#reload the structure
with open('data.json','r') as f:
 dict = {}
 dict = json.loads(f.read())

The error is: No JSON object could be decoded.

• Andy: possible duplicate of Reading a JSON file using Python
• Martijn Pieters: Your code as posted here doesn't throw that error. That would only happen if f.read() returned an empty string or something that simply isn't JSON.
• Chris Cris: Ok the problem was the empty string....I did not managed that an other method were deleting the content of the file.

Answer 1

Try

with open('data.json', 'w') as f:
 f.write(json.dumps(data))
with open('data.json', 'r') as f:
 json.load(f)

• Chris Cris: the problem was the empty string but however I'm going to use the function load instead of loads. It's more 'effective'