Changelog History
Page 1
-
v22.08.0 Changes
October 08, 2022π Features
- π Windows: Test and provide binary wheels for PyPy3.7.
Note that there may be issues with subprocesses, signals, and it may be slow. See :issue:
1798
.- β¬οΈ Upgrade embedded c-ares to 1.18.1.
See :issue:
1847
. - β¬οΈ Upgrade bundled libuv to 1.42.0 from 1.40.0.
See :issue:
1851
. - β Added preliminary support for Python 3.11 (rc2 and later).
Some platforms may or may not have binary wheels at this time.
.. important:: Support for legacy versions of Python, including 2.7 and 3.6, will be ending soon. The maintenance burden has become too great and the maintainer's time is too limited.
Ideally, there will be a release of gevent compatible with a final release of greenlet 2.0 that still supports those legacy versions, but that may not be possible; this may be the final release to support them.
:class:
gevent.threadpool.ThreadPool
can now optionally expire idle threads. This is used by default in the implicit thread pool used for DNS requests and other user-submitted tasks; other uses of a thread-pool need to opt-in to this. See :issue:1867
.π Bugfixes
- Truly disable the effects of compiling with
-ffast-math
. See :issue:1864
.
-
v21.12.0 Changes
December 11, 2021π Features
- β‘οΈ Update autoconf files for Apple Silicon Macs. Note that while there
are reports of compiling gevent on Apple Silicon Macs now, this is
not a tested configuration. There may be some remaining issues with
CFFI on some systems as well.
See :issue:
1721
. - π§ Build and upload CPython 3.10 binary manylinux wheels.
Unfortunately, this required us to stop building and uploading CPython 2.7 binary manylinux wheels. Binary wheels for 2.7 continue to be available for Windows and macOS. See :issue:
1822
.- Test and distribute musllinux_1_1 wheels.
See :issue:
1837
. - β‘οΈ Update the tested versions of PyPy2 and PyPy3. For PyPy2, there should
be no user visible changes, but for PyPy3, support has moved from
Python 3.6 to Python 3.7.
See :issue:
1843
.
π Bugfixes
- π Try to avoid linking to two different Python runtime DLLs on Windows.
See :issue:
1814
. - π§ Stop compiling manylinux wheels with
-ffast-math.
This was implicit in-Ofast
, but could alter the global state of the process. Analysis and fix thanks to Ilya Konstantinov. See :issue:1820
. - π Fix hanging the interpreter on shutdown if gevent monkey patching
occurred on a non-main thread in Python 3.9.8 and above. (Note that
this is not a recommended practice.)
See :issue:
1839
.
- β‘οΈ Update autoconf files for Apple Silicon Macs. Note that while there
are reports of compiling gevent on Apple Silicon Macs now, this is
not a tested configuration. There may be some remaining issues with
CFFI on some systems as well.
See :issue:
-
v21.8.0 Changes
August 05, 2021π Features
- β‘οΈ Update the embedded c-ares from 1.16.1 to 1.17.1.
See :issue:
1758
. - β Add support for Python 3.10rc1 and newer.
As part of this, the minimum required greenlet version was increased to 1.1.0 (on CPython), and the minimum version of Cython needed to build gevent from a source checkout is 3.0a9.
Note that the dnspython resolver is not available on Python 3.10. See :issue:
1790
.- β‘οΈ Update from Cython 3.0a6 to 3.0a9.
See :issue:
1801
.
Misc
- π See :issue:
1789
.
- β‘οΈ Update the embedded c-ares from 1.16.1 to 1.17.1.
See :issue:
-
v21.1.2 Changes
January 20, 2021π Features
- β‘οΈ Update the embedded libev from 4.31 to 4.33.
See :issue:
1754
. - β‘οΈ Update the embedded libuv from 1.38.0 to 1.40.0.
See :issue:
1755
.
Misc
- π See :issue:
1753
.
- β‘οΈ Update the embedded libev from 4.31 to 4.33.
See :issue:
-
v21.1.1 Changes
January 18, 2021π Bugfixes
π Fix a
TypeError
on startup on Python 2 withzope.schema
installed. Reported by Josh Zuech. -
v21.1.0 Changes
January 15, 2021π Bugfixes
π Make gevent
FileObjects
more closely match the semantics of native file objects for thename
attribute:- Objects opened from a file descriptor integer have that integer as
their
name.
(Note that this is the Python 3 semantics; Python 2 native file objects returned fromos.fdopen()
have the string "" as their name , but here gevent always follows Python 3.) - The
name
remains accessible after the file object is closed.
- Objects opened from a file descriptor integer have that integer as
their
Thanks to Dan Milon. See :issue:
1745
.Misc
β Make
gevent.event.AsyncResult
print a warning when it detects improper cross-thread usage instead of hanging.AsyncResult
has never been safe to use from multiple threads. It, like most gevent objects, is intended to work with greenlets from a single thread. UsingAsyncResult
from multiple threads has undefined semantics. The safest way to communicate between threads is using an event loop async watcher.Those undefined semantics changed in recent gevent versions, making it more likely that an abused
AsyncResult
would misbehave in ways that could cause the program to hang.Now, when
AsyncResult
detects a situation that would hang, it β prints a warning to stderr. Note that this is best-effort, and hangs are still possible, especially under PyPy 7.3.3.At the same time,
AsyncResult
is tuned to behave more like it did in older versions, meaning that the hang is once again much less likely. If you were getting lucky and usingAsyncResult
βͺ successfully across threads, this may restore your luck. In addition, cross-thread wakeups are faster. Note that the gevent hub now uses an extra file descriptor to implement this.π Similar changes apply to
gevent.event.Event
(see :issue:1735
).π See :issue:
1739
.
-
v20.12.1 Changes
December 27, 2020π Features
- π Make :class:
gevent.Greenlet
objects function as context managers. When thewith
suite finishes, execution doesn't continue until the greenlet is finished. This can be a simpler alternative to a :class:gevent.pool.Group
when the lifetime of greenlets can be lexically scoped.
Suggested by AndrΓ© Caron. See :issue:
1324
.π Bugfixes
- π Make gevent's
Semaphore
objects properly handle native thread identifiers larger than can be stored in a Clong
on Python 3, instead of raising anOverflowError
.
Reported by TheYOSH. See :issue:
1733
.
- π Make :class:
-
v20.12.0 Changes
December 22, 2020π Features
- π· Make worker threads created by :class:
gevent.threadpool.ThreadPool
install the :func:threading.setprofile
and :func:threading.settrace
hooks while tasks are running. This provides visibility to profiling and tracing tools like yappi.
Reported by Suhail Muhammed. See :issue:
1678
.- β¬οΈ Drop support for Python 3.5.
π Bugfixes
- Incorrectly passing an exception instance instead of an exception
type to
gevent.Greenlet.kill
orgevent.killall
no longer prints an exception to stderr. See :issue:1663
. - π Make destroying a hub try harder to more forcibly stop loop processing when there are outstanding callbacks or IO operations scheduled.
Thanks to Josh Snyder (:issue:
1686
) and Jan-Philip Gehrcke (:issue:1669
). See :issue:1686
.- π Improve the ability to use monkey-patched locks, and
gevent.lock.BoundedSemaphore
, across threads, especially when the various threads might not have a gevent hub or any other active greenlets. In particular, this handles some cases that previously raisedLoopExit
or would hang. Note that this may not be reliable on PyPy on Windows; such an environment is not currently recommended.
The semaphore tries to avoid creating a hub if it seems unnecessary, automatically creating one in the single-threaded case when it would block, but not in the multi-threaded case. While the differences should be correctly detected, it's possible there are corner cases where they might not be.
If your application appears to hang acquiring semaphores, but adding a call to
gevent.get_hub()
in the thread attempting to acquire the semaphore before doing so fixes it, please file an issue. See :issue:1698
.- π Make error reporting when a greenlet suffers a
RecursionError
more reliable.
Reported by Dan Milon. See :issue:
1704
.- π¨ gevent.pywsgi: Avoid printing an extra traceback ("TypeError: not enough arguments for format string") to standard error on certain invalid client requests.
Reported by Steven Grimm. See :issue:
1708
.- β Add support for PyPy2 7.3.3.
See :issue:
1709
. - Python 2: Make
gevent.subprocess.Popen.stdin
objects have awrite
method that guarantees to write the entire argument in binary, unbuffered mode. This may require multiple trips around the event loop, but more closely matches the behaviour of the Python 2 standard library (and gevent prior to 1.5). The number of bytes written is still returned (instead ofNone
). See :issue:1711
. - π Make
gevent.pywsgi
stop trying to enforce the rules for reading chunked input orContent-Length
terminated input when the connection is being upgraded, for example to a websocket connection. Likewise, if the protocol was switched by returning a101
status, stop trying to automatically chunk the responses.
Reported by Kavindu Santhusa. See :issue:
1712
.- Remove the
__dict__
attribute fromgevent.socket.socket
objects. The standard library socket do not have a__dict__
.
Noticed by Carson Ip.
As part of this refactoring, share more common socket code between Python 2 and Python 3. See :issue:
1724
.
- π· Make worker threads created by :class:
-
v20.9.0 Changes
September 22, 2020π Features
- The embedded libev is now asked to detect the availability of
clock_gettime
and use the realtime and/or monotonic clocks, if they are available.
On Linux, this can reduce the number of system calls libev makes. Originally provided by Josh Snyder. See :issue:
issue1648
.π Bugfixes
- On CPython, depend on greenlet >= 0.4.17. This version is binary incompatible with earlier releases on CPython 3.7 and later.
On Python 3.7 and above, the module
gevent.contextvars
is no longer monkey-patched into the standard library. contextvars are now both greenlet and asyncio task local. See :issue:1656
. See :issue:issue1674
.- The
DummyThread
objects created automatically by certain operations when the standard library threading module is monkey-patched now match the naming convention the standard library uses ("Dummy-12345"). Previously (since gevent 1.2a2) they used "DummyThread-12345". See :issue:1659
. - π Fix compatibility with dnspython 2.
.. caution:: This currently means that it can be imported. But it cannot yet be used. gevent has a pinned dependency on dnspython < 2 for now. See :issue:
1661
.
- The embedded libev is now asked to detect the availability of
-
v20.6.2 Changes
June 16, 2020π Features
- π It is now possible to build and use the embedded libuv on a Cygwin platform.
Note that Cygwin is not an officially supported platform of upstream libuv and is not tested by gevent, so the actual working status is unknown, and this may bitrot in future releases.
Thanks to berkakinci for the patch. See :issue:
issue1645
.π Bugfixes
- π Relax the version constraint for psutil on PyPy.
Previously it was pinned to 5.6.3 for PyPy2, except for on Windows, where it was excluded. It is now treated the same as CPython again. See :issue:
issue1643
.