New submission from Raymond Hettinger:
The error message for malformed JSON just tells you that the JSON is invalid,
it doesn't say why (showing you which character bombed, what text is being
read, what the pending openers are, or what allowable characters would have
been expected). In the absence of this information, it is very difficult to
debug hand-rolled JSON.
json.loads('sample_file.json') # students find this hard to debug
json.loads('''[
"boys": 10,
"girls": 20,
]''') # hard to see trailing comma
json.loads("['python', 'perl', 'ruby']") # needs double quotes
json.loads("[[10, 20], [30, 40]]]") # unbalanced delimiters
----------
messages: 218062
nosy: rhettinger
priority: normal
severity: normal
status: open
title: Improve error messages for malformed JSON
type: enhancement
versions: Python 2.7, Python 3.4, Python 3.5
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Python tracker <[email protected]>
<http://bugs.python.org/issue21451>
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