Extract JSON from text - a quick-and-dirty iterator. Handles braces in strings and escapes (possibly).

jsonIter.py

def extractJSON(string):
    extracted = ""
    seen = 0
    in_string = False
    escape = False
    for char in string:
        if char=="{" and not in_string:
            seen += 1
        if seen>0:
            extracted += char
        if char=="\"" and not escape:
            in_string = not in_string
        if char=="}":
            if not in_string and not escape:
                seen -= 1
                if seen==0:
                    yield extracted
                    extracted = ""
        if char=="\\" and in_string and not escape:
            escape = True
        else:
            escape = False

if __name__=="__main__":
    testString = """
random junk here
{
    "key1": "value1",
    "key1": "value1",
    "nested": {
        "nested key": "true"
    }
}
Other random junk
{
    "sneaky lil value": "{{{}}}}}}",
    "sneaky key }{}{}}}{\\"\\"\\\\": false
}
Ends here
    """
    print(testString)

    from json import loads

    for j in extractJSON(testString):
        print(loads(j))