json.load

[Karebo]

json.loads(x) works, but json.load(frr) doesn't work. Data are the same.
Any idea?

>>> frr = open("jsdata.json", "r")
>>> x = frr.read()
>>> json.loads(x)
{'value_d1': [0, 1, 2, 3, 4, 5, 6, 7, 8], 'dtime': '00.00.00 00:00', 'value_d2': [0, 1, 2, 3, 4, 5, 6, 7,
8], 'device_2': 'Humidity', 'device_1': 'Temperature'}
>>> fr = json.load(frr)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: syntax error in JSON

[pagano.paganino]

Hi Karebo Try with:

Code: Select all

with open("jsdata.json", "r") as frr:
    x = frr.read()
    json.loads(x)

and with:

Code: Select all

with open("jsdata.json", "r") as frr:
    json.load(frr)

the problem is in the position of the cursor in the file.

If you use frr.read() the cursor is positioned at the end of the file and using json.load(frr) there is nothing else to read.

using the with you ensure a correct reading of the file and closing.

If you want to use the same FD then use the seek method.

[Karebo]

Thanks. My live will be better now