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| author | Victor Stinner <vstinner@redhat.com> | 2019-06-25 22:51:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-06-25 22:51:05 (GMT) |
| commit | 22eb689cf3de7972a2789db3ad01a86949508ab7 (patch) | |
| tree | a1d63fa4cf235008e73f92a18ebef57be54ce4a5 /Doc/using | |
| parent | e1a63c4f21011a3ae77dff624196561070c83446 (diff) | |
| download | cpython-22eb689cf3de7972a2789db3ad01a86949508ab7.zip cpython-22eb689cf3de7972a2789db3ad01a86949508ab7.tar.gz cpython-22eb689cf3de7972a2789db3ad01a86949508ab7.tar.bz2 | |
bpo-37388: Development mode check encoding and errors (GH-14341)
In development mode and in debug build, encoding and errors arguments
are now checked on string encoding and decoding operations. Examples:
open(), str.encode() and bytes.decode().
By default, for best performances, the errors argument is only
checked at the first encoding/decoding error, and the encoding
argument is sometimes ignored for empty strings.
Diffstat (limited to 'Doc/using')
| -rw-r--r-- | Doc/using/cmdline.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst index 87af7e8..e11fe31 100644 --- a/Doc/using/cmdline.rst +++ b/Doc/using/cmdline.rst @@ -429,6 +429,9 @@ Miscellaneous options not be more verbose than the default if the code is correct: new warnings are only emitted when an issue is detected. Effect of the developer mode: + * Check *encoding* and *errors* arguments on string encoding and decoding + operations. Examples: :func:`open`, :meth:`str.encode` and + :meth:`bytes.decode`. * Add ``default`` warning filter, as :option:`-W` ``default``. * Install debug hooks on memory allocators: see the :c:func:`PyMem_SetupDebugHooks` C function. @@ -469,6 +472,10 @@ Miscellaneous options The ``-X pycache_prefix`` option. The ``-X dev`` option now logs ``close()`` exceptions in :class:`io.IOBase` destructor. + .. versionchanged:: 3.9 + Using ``-X dev`` option, check *encoding* and *errors* arguments on + string encoding and decoding operations. + Options you shouldn't use ~~~~~~~~~~~~~~~~~~~~~~~~~ |