delta/cpython-git.git/Python, branch backport-0613c1e-3.7

bpo-1875: Raise SyntaxError in invalid blocks that will be optimised away (GH-13332)

2019-05-17T10:59:48+00:00

Move the check for dead conditionals (if 0) to the peephole optimizer
and make sure that the code block is still compiled to report any
existing syntax errors within.
(cherry picked from commit af8646c8054d0f4180a2013383039b6a472f9698)

Co-authored-by: Pablo Galindo

bpo-36791: Safer detection of integer overflow in sum(). (GH-13080)

2019-05-12T09:37:15+00:00

(cherry picked from commit 29500737d45cbca9604d9ce845fb2acc3f531401)

Co-authored-by: Serhiy Storchaka

[3.7] bpo-34408: Prevent a null pointer dereference and resource leakage in `PyInterpreterState_New()` (GH-8767) (GH-13237)

2019-05-10T20:16:19+00:00

* A pointer in `PyInterpreterState_New()` could have been `NULL` when being dereferenced.

* Memory was leaked in `PyInterpreterState_New()` when taking some error-handling code path.
(cherry picked from commit 95d630e)

Co-authored-by: Pablo Galindo

[3.7] bpo-9566: Fix compiler warnings on Windows (GH-12920)

2019-04-23T08:26:11+00:00

* bpo-9566: Fix compiler warnings in gcmodule.c (GH-11010)

Change PyDTrace_GC_DONE() argument type from int to Py_ssize_t.

(cherry picked from commit edad38e3e05586ba58291f47756eb3fb808f5577)

* bpo-30465: Fix C downcast warning on Windows in ast.c (#6593)

ast.c: fstring_fix_node_location() downcasts a pointer difference to
a C int. Replace int with Py_ssize_t to fix the compiler warning.

(cherry picked from commit fb7e7992beec7f76cc2db77ab6ce1e86446bfccf)

* bpo-9566: Fix compiler warnings in peephole.c (GH-10652)

(cherry picked from commit 028f0ef4f3111d2b3fc5b971642e337ba7990873)

* bpo-27645, sqlite: Fix integer overflow on sleep (#6594)

Use the _PyTime_t type and round away from zero (ROUND_UP,
_PyTime_ROUND_TIMEOUT) the sleep duration, when converting a Python
object to seconds and then to milliseconds. Raise an OverflowError in
case of overflow.

Previously the (int)double conversion rounded towards zero
(ROUND_DOWN).

(cherry picked from commit ca405017d5e776a2e3d9291236e62d2e09489dd2)

bpo-32849: Fix is_valid_fd() on FreeBSD (GH-12852) (GH-12863)

2019-04-17T16:30:27+00:00

Fix Python Initialization code on FreeBSD to detect properly when
stdin file descriptor (fd 0) is invalid.

On FreeBSD, fstat() must be used to check if stdin (fd 0) is valid.
dup(0) doesn't fail if stdin is invalid in some cases.
(cherry picked from commit 3092d6b2630e4d2bd200fbc3231c27a7cba4d6b2)

Co-authored-by: Victor Stinner

bpo-36370: Check for PyErr_Occurred() after PyImport_GetModule() (GH-12504)

2019-03-25T21:36:43+00:00

bpo-35284: Fix the error handling in the compiler's compiler_call(). (GH-10625) (GH-12496)

2019-03-22T13:20:49+00:00

compiler_call() needs to check if an error occurred during the
maybe_optimize_method_call() call.
(cherry picked from commit 97f5de01adf993aee17dcd26e22ae421d013f372)

bpo-36236: Handle removed cwd at Python init (GH-12450)

2019-03-19T23:30:45+00:00

At Python initialization, the current directory is no longer
prepended to sys.path if it has been removed.

bpo-36262: Fix _Py_dg_strtod() memory leak (goto undfl) (GH-12276) (GH-12331)

2019-03-14T16:12:01+00:00

Fix an unlikely memory leak on conversion from string to float in the
function _Py_dg_strtod() used by float(str), complex(str),
pickle.load(), marshal.load(), etc.

Fix an unlikely memory leak in _Py_dg_strtod() on "undfl:" label:
rewrite memory management in this function to always release all
memory before exiting the function. Initialize variables to NULL, and
set them to NULL after calling Bfree() at the "cont:" label.

Note: Bfree(NULL) is well defined: it does nothing.

(cherry picked from commit 9776b0636ae39668d3ce1c006d4be01dad01bf9f)

[3.7] bpo-36254: Fix invalid uses of %d in format strings in C. (GH-12264). (GH-12322)

2019-03-14T08:47:27+00:00

(cherry picked from commit d53fe5f407ff4b529628b01a1bcbf21a6aad5c3a)

Co-authored-by: Serhiy Storchaka