Update to 15 March #1

rhettinger · 2021-03-16T04:11:45Z

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Starting stack viewer when user code is running, including when Debugger is active, hangs or crashes IDLE. Co-authored-by: Terry Jan Reedy <[email protected]>

…yEval_CodeEval and friends (GH-24298) * Introduce 'frame constructor' to simplify API for frame creation * Embed struct using a macro to conform to PEP 7

When Python is built in debug mode (with C assertions), calling a type slot like sq_length (__len__() in Python) now fails with a fatal error if the slot succeeded with an exception set, or failed with no exception set. The error message contains the slot, the type name, and the current exception (if an exception is set). * Check the result of all slots using _Py_CheckSlotResult(). * No longer pass op_name to ternary_op() in release mode. * Replace operator with dunder Python method name in error messages. For example, replace "*" with "__mul__". * Fix compiler_exit_scope() when an exception is set. * Fix bytearray.extend() when an exception is set: don't call bytearray_setslice() with an exception set.

Found it while translating it to french 🤷 Automerge-Triggered-By: GH:JulienPalard

Automerge-Triggered-By: GH:JulienPalard

…H-24355)

math_nextafter_impl() must return a Python object, not a C double.

* Replace Py_FatalError() calls with regular SystemError exceptions. * compiler_exit_scope() calls _PyErr_WriteUnraisableMsg() to log the PySequence_DelItem() failure. * compiler_unit_check() uses _PyMem_IsPtrFreed(). * compiler_make_closure(): remove "(reftype == FREE)" comment since reftype can also be LOCAL or GLOBAL_EXPLICIT.

The documentation for some parts of the logging.config formatters has fallen behind the code. For example, the dictionary-schema section does not list the "class" attribute, however it is discussed in the file/ini discussion; and neither references the style argument which has been added. This modifies the dictionary-schema formatters documentation to list the keys available and overall makes it clearer these are passed to create a logging.Formatter object. The logging.Formatter documentation describes the default values of format/datefmt and the various formatting options. Since we have now more clearly described how the configuration is created via this type of object, we remove the discussion in this document to avoid duplication and rely on users reading the referenced logging.Formatter documenation directly for such details. Instead of duplicating the discussion for the two config types, the file/ini section is modified to link back to the dictionary-schema discussion, making it clear the same arguments are accepted. Automerge-Triggered-By: GH:vsajip

GH-24384)

…24386) Update bundled pip to 21.0.1 and setuptools to 52.0.0

…-24364)

Improvements: - Improvements in how try clause works section This suggestion is because the execution continues after *except*, not after *try* but before *except*. I guess this form more clear. - Surrounding some keywords with \*...\* For uniformity the highlighted terms - Adjust the number of chars per line to 80

… wchar_t (GH-24350)

…tr when set_panel_usertpr fails (GH-21933)

…with newlines (GH-24279)

…hensions (GH24314)

…H-24383)

…a string (GH-24341) * bpo-42504: Ensure that get_config_var('MACOSX_DEPLOYMENT_TARGET') is a string

* Further refactoring of PyEval_EvalCode and friends. Break into make-frame, and eval-frame parts. * Simplify function vector call using new _PyEval_Vector. * Remove unused internal functions: _PyEval_EvalCodeWithName and _PyEval_EvalCode. * Don't use legacy function PyEval_EvalCodeEx.

Make internal caches of the _json extension module compatible with subinterpreters.

For back-compatibility, make the new constructor parameter for public classes Function and Class keyword-only with a default of None. Co-authored-by: Aviral Srivastava <[email protected] Co-authored-by: Terry Jan Reedy <[email protected]>

Also introduce a new C API ``PyErr_SetInterruptEx(int signum)``.

* Fix auth_login logic (bpo-27820) * Also fix a longstanding bug in the SimSMTPChannel.found_terminator() method that causes inability to test SMTP AUTH with initial_response_ok=False.

* Update link to Django's Context class. * Update link to get-pip.py.

_PyType_ClearCache() now only resets next_version_tag in the main interpreter. Co-authored-by: Victor Stinner <[email protected]>

* bpo-43428: Sync with importlib_metadata 3.7.2 (67234b6) * Add blurb * Reformat blurb to create separate paragraphs for each change included.

…cs. (GH-24787)

…24836)

…4788)

…reading from stdin (GH-24763)

…thod calls, conform to PEP 626. (GH-24859)

…ectory() (GH-24793)

Answer "Why is there no goto?" in the Design and History FAQ.

…24858) * bpo-43428: Sync with importlib_metadata 3.7.3 (16ac3a95) * Add 'versionadded' for importlib.metadata.packages_distributions * Add section in what's new for Python 3.10 highlighting most salient changes and relevant backport.

… to PEP 626. (GH-24860)

Automerge-Triggered-By: GH:Mariatta

bpo-43285: Make ftplib not trust the PASV response. The IPv4 address value returned from the server in response to the PASV command should not be trusted. This prevents a malicious FTP server from using the response to probe IPv4 address and port combinations on the client network. Instead of using the returned address, we use the IP address we're already connected to. This is the strategy other ftp clients adopted, and matches the only strategy available for the modern IPv6 EPSV command where the server response must return a port number and nothing else. For the rare user who _wants_ this ugly behavior, set a `trust_server_pasv_ipv4_address` attribute on your `ftplib.FTP` instance to True.

…H-22570)

* bpo-40791: Make compare_digest more constant-time. The existing volatile `left`/`right` pointers guarantee that the reads will all occur, but does not guarantee that they will be _used_. So a compiler can still short-circuit the loop, saving e.g. the overhead of doing the xors and especially the overhead of the data dependency between `result` and the reads. That would change performance depending on where the first unequal byte occurs. This change removes that optimization. (This is change #1 from https://bugs.python.org/issue40791 .)

* bpo-40791: Make compare_digest more constant-time. The existing volatile `left`/`right` pointers guarantee that the reads will all occur, but does not guarantee that they will be _used_. So a compiler can still short-circuit the loop, saving e.g. the overhead of doing the xors and especially the overhead of the data dependency between `result` and the reads. That would change performance depending on where the first unequal byte occurs. This change removes that optimization. (This is change GH-1 from https://bugs.python.org/issue40791 .) (cherry picked from commit 3172936) Co-authored-by: Devin Jeanpierre <[email protected]>

) Fix test_gdb.test_pycfunction() for Python built with clang -Og. Tolerate inlined functions in the gdb traceback. When _testcapimodule.c is built by clang -Og, _null_to_none() is inlined in meth_varargs() and so gdb returns _null_to_none() as the frame #1. If it's not inlined, meth_varargs() is the frame #1.

…python#91466) Fix an uninitialized bool in exception print context. `struct exception_print_context.need_close` was uninitialized. Found by oss-fuzz in a test case running under the undefined behavior sanitizer. https://oss-fuzz.com/testcase-detail/6217746058182656 ``` Python/pythonrun.c:1241:28: runtime error: load of value 253, which is not a valid value for type 'bool' #0 0xbf2203 in print_chained cpython3/Python/pythonrun.c:1241:28 #1 0xbea4bb in print_exception_cause_and_context cpython3/Python/pythonrun.c:1320:19 #2 0xbea4bb in print_exception_recursive cpython3/Python/pythonrun.c:1470:13 #3 0xbe9e39 in _PyErr_Display cpython3/Python/pythonrun.c:1517:9 ``` Pretty obvious what the ommission was upon code inspection.

…es (#1… (python#108688) This reverts commit 08447b5. Revert also _ctypes.c changes of the PyDict_ContainsString() change, commit 6726626.

…ython#119498) (#1… (python#119905) Revert "[3.12] pythongh-69214: Fix fcntl.ioctl() request type (python#119498) (python#119505)" This reverts commit 078da88. The change modified how negative values, like termios.TIOCSWINSZ, was treated and is actually backward incompatible.

vstinner and others added 30 commits January 28, 2021 00:03

bpo-42955: Remove sub-packages from sys.stdlib_module_names (GH-24353)

64fc105

bpo-23544: Disable IDLE Stack Viewer when running user code (GH-17163)

23a567c

Starting stack viewer when user code is running, including when Debugger is active, hangs or crashes IDLE. Co-authored-by: Terry Jan Reedy <[email protected]>

bpo-42990: Introduce 'frame constructor' struct to simplify API for P…

d6c33fb

…yEval_CodeEval and friends (GH-24298) * Introduce 'frame constructor' to simplify API for frame creation * Embed struct using a macro to conform to PEP 7

Fixed typo in turtle.rst (GH-24371)

6372a4c

Found it while translating it to french 🤷 Automerge-Triggered-By: GH:JulienPalard

bpo-43008: Add 'Patch by Ken Hilton' (GH-24370)

11d75ec

Fixing typos in turtle.rst (GH-24376)

6baaae5

Automerge-Triggered-By: GH:JulienPalard

bpo-41282: Add deprecation warning and docs for distutils (PEP 632) (G…

62949f6

…H-24355)

bpo-42323: Fix math.nextafter() on AIX (GH-24381)

0837f99

math_nextafter_impl() must return a Python object, not a C double.

Fix a reference leak in the compiler for compiler_lambda() (GH-24382)

7fdab83

bpo-42927: Inline cache for attributes defined with '__slots__' (#24216)

5c5a938

bpo-40455: Fix gcc10+ warning about writing into a section of offset 0 (

86e322f

GH-24384)

bpo-43077: Update bundled pip to 21.0.1 and setuptools to 52.0.0 (GH-…

4d11ecb

…24386) Update bundled pip to 21.0.1 and setuptools to 52.0.0

bpo-43059: Remove reference to legacy external sqlite3 repository (GH…

e603443

…-24364)

bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE with signed…

42b1806

… wchar_t (GH-24350)

bpo-43016: Rewrite tests for curses (GH-24312)

d64fd4b

bpo-43083: Fix error handling in _sqlite3 (GH-24395)

9073180

bpo-41604: Don't decrement the reference count of the previous user_p…

3243e8a

…tr when set_panel_usertpr fails (GH-21933)

bpo-43016: Fix test_curses on platform without cursesw (GH-24405)

a1e9a1e

bpo-42986: Fix parser crash when reporting syntax errors in f-string …

4090151

…with newlines (GH-24279)

bpo-43017: Improve error message for unparenthesised tuples in compre…

835f14f

…hensions (GH24314)

bpo-42927: Update the What's new entry for LOAD_ATTR optimizations (G…

a776da9

…H-24383)

bpo-42504: Ensure that get_config_var('MACOSX_DEPLOYMENT_TARGET') is …

49926cf

…a string (GH-24341) * bpo-42504: Ensure that get_config_var('MACOSX_DEPLOYMENT_TARGET') is a string

Fix typo in Lib/trace.py (GH-24309)

574aed1

bpo-42834: Fix _json internal caches for subinterpreters (GH-24121)

b5931f1

Make internal caches of the _json extension module compatible with subinterpreters.

pitrou and others added 23 commits March 11, 2021 23:35

bpo-43356: Allow passing a signal number to interrupt_main() (GH-24755)

ba251c2

Also introduce a new C API ``PyErr_SetInterruptEx(int signum)``.

bpo-27820: Fix AUTH LOGIN logic in smtplib.SMTP (GH-24118)

7591d94

* Fix auth_login logic (bpo-27820) * Also fix a longstanding bug in the SimSMTPChannel.found_terminator() method that causes inability to test SMTP AUTH with initial_response_ok=False.

Update client.py (GH-24827)

b6884ad

Update link to Django's Context class. (#24805)

d0a4454

* Update link to Django's Context class. * Update link to get-pip.py.

bpo-40521: Make dtoa bigint free list per-interpreter (GH-24821)

5bd1059

bpo-43441: Fix _PyType_ClearCache() for subinterpreters (GH-24822)

75048c8

_PyType_ClearCache() now only resets next_version_tag in the main interpreter. Co-authored-by: Victor Stinner <[email protected]>

bpo-43444: Move sqlite3 MODULE_NAME from setup.py to module.h (GH-24801)

2256a28

bpo-43428: Sync with importlib_metadata 3.7. (GH-24782)

f917efc

* bpo-43428: Sync with importlib_metadata 3.7.2 (67234b6) * Add blurb * Reformat blurb to create separate paragraphs for each change included.

bpo-43427: Separte the method overview from the static method specifi…

f00e82f

…cs. (GH-24787)

Fix some minor errors in the docs (GH-24834)

f2b4536

bpo-43439: Wrapt the tuple in the audit events for the gc module (GH-…

9c376bc

…24836)

bpo-43245: Add keyword argument support to ChainMap.new_child() (GH-2…

9923df9

…4788)

bpo-43410: Fix crash in the parser when producing syntax errors when …

cd8dcbc

…reading from stdin (GH-24763)

bpo-39316: Make sure that attribute accesses and stores, including me…

d48848c

…thod calls, conform to PEP 626. (GH-24859)

bpo-29982: Add "ignore_cleanup_errors" param to tempfile.TemporaryDir…

bd2fa3c

…ectory() (GH-24793)

bpo-43199: Briefly explain why no goto (GH-24852)

5e29021

Answer "Why is there no goto?" in the Design and History FAQ.

Mark POP_TOP at end of expression statement as artificial, to conform…

c544093

… to PEP 626. (GH-24860)

Fix typo in the word "spaghetti" (GH-24866)

93d33b4

Automerge-Triggered-By: GH:Mariatta

bpo-41933: Clarify wording for s * n in Common Sequence Operations (G…

0269ce8

…H-22570)

Minor updates to the vector demo (GH-24853)

d69ae75

bpo-41361: Optimized argument parsing for deque_rotate (GH-24796)

448801d

rhettinger merged commit bbd2da9 into rhettinger:master Mar 16, 2021

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Update to 15 March #1

Update to 15 March #1

rhettinger commented Mar 16, 2021

Update to 15 March #1

Update to 15 March #1

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rhettinger commented Mar 16, 2021