by a signal (EINTR).

Modify devpoll_flush() to use _Py_write() instead of calling directly write().

opening /dev/urandom.

EINTR error and special cases for Windows.

These functions now truncate the length to PY_SSIZE_T_MAX to have a portable
and reliable behaviour. For example, read() result is undefined if counter is
greater than PY_SSIZE_T_MAX on Linux.

and stored in pyconfig.h as the new HAVE_GETRANDOM_SYSCALL define.

Fix os.urandom() tests using file descriptors if os.urandom() uses getrandom().

retried with the recomputed delay, except if the signal handler raises an
exception (PEP 475).

Modify also test_signal to use a monotonic clock instead of the system clock.

Jan 30 of previous year.  Based on patch by Jim Carroll.

Jan 30 of previous year.  Based on patch by Jim Carroll.

NamedTemporaryFile instance.  Patch by Bohuslav Kabrda.

NamedTemporaryFile instance.  Patch by Bohuslav Kabrda.

add private method to enum to support replacing global constants with Enum members:
- search for candidate constants via supplied filter
- create new enum class and members
- insert enum class and replace constants with members via supplied module name
- replace __reduce_ex__ with function that returns member name, so previous Python versions can unpickle
modify IntEnum classes to use new method

add private method to enum to support replacing global constants with Enum members:
- search for candidate constants via supplied filter
- create new enum class and members
- insert enum class and replace constants with members via supplied module name
- replace __reduce_ex__ with function that returns member name, so previous Python versions can unpickle
modify IntEnum classes to use new method

Issue #22903: The fake test case created by unittest.loader when it fails importing a test module is now picklable.

Issue #22903: The fake test case created by unittest.loader when it fails importing a test module is now picklable.

broken after converting instance attributes to properies in issue #2211.

available, syscall introduced in the Linux kernel 3.17. It is more reliable
and more secure, because it avoids the need of a file descriptor and waits
until the kernel has enough entropy.

Use a Python source file (linecache.__file__) instead of /etc/passwd.

Modify also linecache docstrings to clarify the linecache is written to cache
Python source files, not any text files.

source files, even if "it works" with other text files encoded to UTF-8.

Use None as a sentinel to stop a worker.

PyMarshal_ReadShortFromFile() can fail.

Detect also earlier PyMarshal_Read*() errors in zipimport.

the caller can replace the directory with a different file kind.

The bottom-up way, os.walk(topdown=False), still uses entry.is_symlink(), and
so can be faster than Python 3.4.

Retry open()/fopen() if it fails with EINTR and the Python signal handler
doesn't raise an exception.