bpo-33671
* use memoryview() with size == file size on Windows, see https://github.com/python/cpython/pull/7160#discussion_r195405230
* release intermediate (sliced) memoryview immediately
* replace "OSX" occurrences with "macOS"
* add some unittests for copyfileobj()
In some development setups it is inconvenient or impossible to write bytecode
caches to the code tree, but the bytecode caches are still useful. The
PYTHONPYCACHEPREFIX environment variable allows specifying an alternate
location for cached bytecode files, within which a directory tree mirroring the code
tree will be created. This cache tree is then used (for both reading and writing)
instead of the local `__pycache__` subdirectory within each source directory.
Exposed at runtime as sys.pycache_prefix (defaulting to None), and can
be set from the CLI as "-X pycache_prefix=path".
Patch by Carl Meyer.
string.Formatter auto-numbering feature was added in 3.4 and there
is no versionchanged note in its documentation, making the documentation
ambiguous about which version the feature is available.
* have shutil.copyfileobj use sendfile() if possible
* refactoring: use ctx manager
* add test with non-regular file obj
* emulate case where file size can't be determined
* reference _copyfileobj_sendfile directly
* add test for offset() at certain position
* add test for empty file
* add test for non regular file dst
* small refactoring
* leave copyfileobj() alone in order to not introduce any incompatibility
* minor refactoring
* remove old test
* update docstring
* update docstring; rename exception class
* detect platforms which only support file to socket zero copy
* don't run test on platforms where file-to-file zero copy is not supported
* use tempfiles
* reset verbosity
* add test for smaller chunks
* add big file size test
* add comment
* update doc
* update whatsnew doc
* update doc
* catch Exception
* remove unused import
* add test case for error on second sendfile() call
* turn docstring into comment
* add one more test
* update comment
* add Misc/NEWS entry
* get rid of COPY_BUFSIZE; it belongs to another PR
* update doc
* expose posix._fcopyfile() for OSX
* merge from linux branch
* merge from linux branch
* expose fcopyfile
* arg clinic for the win implementation
* convert path type to path_t
* expose CopyFileW
* fix windows tests
* release GIL
* minor refactoring
* update doc
* update comment
* update docstrings
* rename functions
* rename test classes
* update doc
* update doc
* update docstrings and comments
* avoid do import nt|posix modules if unnecessary
* set nt|posix modules to None if not available
* micro speedup
* update description
* add doc note
* use better wording in doc
* rename function using 'fastcopy' prefix instead of 'zerocopy'
* use :ref: in rst doc
* change wording in doc
* add test to make sure sendfile() doesn't get called aymore in case it doesn't support file to file copies
* move CopyFileW in _winapi and actually expose CopyFileExW instead
* fix line endings
* add tests for mode bits
* add docstring
* remove test file mode class; let's keep it for later when Istart addressing OSX fcopyfile() specific copies
* update doc to reflect new changes
* update doc
* adjust tests on win
* fix argument clinic error
* update doc
* OSX: expose copyfile(3) instead of fcopyfile(3); also expose flags arg to python
* osx / copyfile: use path_t instead of char
* do not set dst name in the OSError exception in order to remain consistent with platforms which cannot do that (e.g. linux)
* add same file test
* add test for same file
* have osx copyfile() pre-emptively check if src and dst are the same, otherwise it will return immedialtey and src file content gets deleted
* turn PermissionError into appropriate SameFileError
* expose ERROR_SHARING_VIOLATION in order to raise more appropriate SameFileError
* honour follow_symlinks arg when using CopyFileEx
* update Misc/NEWS
* expose CreateDirectoryEx mock
* change C type
* CreateDirectoryExW actual implementation
* provide specific makedirs() implementation for win
* fix typo
* skeleton for SetNamedSecurityInfo
* get security info for src path
* finally set security attrs
* add unit tests
* mimick os.makedirs() behavior and raise if dst dir exists
* set 2 paths for OSError object
* set 2 paths for OSError object
* expand windows test
* in case of exception on os.sendfile() set filename and filename2 exception attributes
* set 2 filenames (src, dst) for OSError in case copyfile() fails on OSX
* update doc
* do not use CreateDirectoryEx() in copytree() if source dir is a symlink (breaks test_copytree_symlink_dir); instead just create a plain dir and remain consistent with POSIX implementation
* use bytearray() and readinto()
* use memoryview() with bytearray()
* refactoring + introduce a new _fastcopy_binfileobj() fun
* remove CopyFileEx and other C wrappers
* remove code related to CopyFileEx
* Recognize binary files in copyfileobj()
...and use fastest _fastcopy_binfileobj() when possible
* set 1MB copy bufsize on win; also add a global _COPY_BUFSIZE variable
* use ctx manager for memoryview()
* update doc
* remove outdated doc
* remove last CopyFileEx remnants
* OSX - use fcopyfile(3) instead of copyfile(3)
...as an extra safety measure: in case src/dst are "exotic" files (non
regular or living on a network fs etc.) we better fail on open() instead
of copyfile(3) as we're not quite sure what's gonna happen in that
case.
* update doc
When attempting to base64-decode a payload of invalid length (1 mod 4),
properly recognize and handle it. The given data will be returned as-is,
i.e. not decoded, along with a new defect, InvalidBase64LengthDefect.
The documentation for CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED were
misleading and partly wrong. It fails to explain that OpenSSL behaves
differently in client and server mode. Also OpenSSL does validate the
cert chain everytime. With SSL_VERIFY_NONE a validation error is not
fatal in client mode and does not request a client cert in server mode.
Also discourage people from using CERT_OPTIONAL in client mode.
On Windows 8.1+ or 10, with DPI compatibility properties of the Python binary
unchanged, and a monitor resolution greater than 96 DPI, this should
make text and lines sharper. It should otherwise have no effect.
Using a magnifier, I determined that the improvement comes from horizontal and
lines being better lined up with the monitor pixels. I checked that this call causes
no problem on any Windows buildbot, including the Win7 buildbots. Unlike most
IDLE patches, this one can be easily reverted by users by removing a few lines,
at the top of idlelib/pyshell.py.
A datetime object d is aware if d.tzinfo is not None and
d.tzinfo.utcoffset(d) does not return None. If d.tzinfo is None,
or if d.tzinfo is not None but d.tzinfo.utcoffset(d) returns None,
d is naive.
This commit ensures that instances with non-None d.tzinfo, but
d.tzinfo.utcoffset(d) returning None are treated as naive.
In addition, C acceleration code will raise TypeError if
d.tzinfo.utcoffset(d) returns an object with the type other than
timedelta.
* Updated the documentation.
Assume that the term "naive" is defined elsewhere and remove the
not entirely correct clarification. Thanks, Tim.
