diff options
Diffstat (limited to 'Lib/json/encoder.py')
| -rw-r--r-- | Lib/json/encoder.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Lib/json/encoder.py b/Lib/json/encoder.py index 41a497c..fb083ed 100644 --- a/Lib/json/encoder.py +++ b/Lib/json/encoder.py @@ -176,8 +176,8 @@ class JSONEncoder(object): return JSONEncoder.default(self, o) """ - raise TypeError("Object of type '%s' is not JSON serializable" % - o.__class__.__name__) + raise TypeError(f'Object of type {o.__class__.__name__} ' + f'is not JSON serializable') def encode(self, o): """Return a JSON string representation of a Python data structure. @@ -373,7 +373,8 @@ def _make_iterencode(markers, _default, _encoder, _indent, _floatstr, elif _skipkeys: continue else: - raise TypeError("key " + repr(key) + " is not a string") + raise TypeError(f'keys must be str, int, float, bool or None, ' + f'not {key.__class__.__name__}') if first: first = False else: |