Simplify json load/dump usage

[evanrrees]

When reading / writing a file, the json.load() and json.dump() methods can be used to avoid an unnecessary call to f.read() or f.write().

[netlify]

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[wilfredinni]

Hi, thank you for contributing. The thing is that you need to use the read method to load content from a file, or you would get this error:

>>> with open("filename.json", "r") as f:
...     json_content = json.loads(f)
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "/usr/lib/python3.8/json/__init__.py", line 341, in loads
    raise TypeError(f'the JSON object must be str, bytes or bytearray, '
TypeError: the JSON object must be str, bytes or bytearray, not TextIOWrapper

[evanrrees]

Hi, thank you for contributing. The thing is that you need to use the read method to load content from a file, or you would get this error:

>>> with open("filename.json", "r") as f:
...     json_content = json.loads(f)

@wilfredinni Note that json.load and json.loads are different methods.

[wilfredinni]

You are absolutely right!