json.loads(...) ValueError: Expecting value: line 1 column 1 (char 0)

[zljubisic at gmail.com]

Hi,

in python3 my variable looks like this:

a = b'{"uuid":"5730e8666ffa02.34177329","error":""}'
str(a) = 'b\'{"uuid":"5730e8666ffa02.34177329","error":""}\''

If I execute the following command I get the error:

>>> json.loads(str(a))
Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.1.2\helpers\pydev\_pydevd_bundle\pydevd_exec2.py", line 3, in Exec
    exec(exp, global_vars, local_vars)
  File "<input>", line 1, in <module>
  File "C:\Program Files\Python34\lib\json\__init__.py", line 318, in loads
    return _default_decoder.decode(s)
  File "C:\Program Files\Python34\lib\json\decoder.py", line 343, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Program Files\Python34\lib\json\decoder.py", line 361, in raw_decode
    raise ValueError(errmsg("Expecting value", s, err.value)) from None
ValueError: Expecting value: line 1 column 1 (char 0)

Why I am getting this error?
If I set variable a to the '{"uuid":"5730e8666ffa02.34177329","error":""}' everything works as expected.

Regards.