Close #20105: set __traceback__ when chaining exceptions in C
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
index 5d397fe..1d88965 100644
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -264,6 +264,9 @@
>>> import codecs
>>> codecs.decode(b"abcdefgh", "hex")
+ Traceback (most recent call last):
+ File "/usr/lib/python3.4/encodings/hex_codec.py", line 20, in hex_decode
+ return (binascii.a2b_hex(input), len(input))
binascii.Error: Non-hexadecimal digit found
The above exception was the direct cause of the following exception:
@@ -273,6 +276,11 @@
binascii.Error: decoding with 'hex' codec failed (Error: Non-hexadecimal digit found)
>>> codecs.encode("hello", "bz2")
+ Traceback (most recent call last):
+ File "/usr/lib/python3.4/encodings/bz2_codec.py", line 17, in bz2_encode
+ return (bz2.compress(input), len(input))
+ File "/usr/lib/python3.4/bz2.py", line 498, in compress
+ return comp.compress(data) + comp.flush()
TypeError: 'str' does not support the buffer interface
The above exception was the direct cause of the following exception: