PYTHON-4725 - Async client should use tasks for SDAM instead of threads
PYTHON-4860 - Async client should use asyncio.Lock and asyncio.Condition
PYTHON-4941 - Synchronous unified test runner being used in asynchronous tests
PYTHON-4843 - Async test suite should use a single event loop
PYTHON-4945 - Fix test cleanups for mongoses
Co-authored-by: Iris <58442094+sleepyStick@users.noreply.github.com>
Make GridOut inherit from io.IOBase to be a fully "file-like" object (https://docs.python.org/3/glossary.html#term-file-like-object). Implement missing methods `readlines`, `writelines`,
`writable`, `fileno`, `flush`, `isatty`, `truncate`,
and property `closed`, following the spec
(https://docs.python.org/3/library/io.html#io.IOBase.writable).
Iterating over GridOut previously returned chunks, but IOBase specifies
that lines should be returned. Thus, the `GridOutIterator` returning chunks is removed
and GridOut simply uses the existing IOBase iterator implementation (returning `self`
in `__iter__` and using `readline` in `__next__`).
Additionally, iterating over GridOut previously did not move the "file pointer" along, i.e.
`next(iter(some_grid_out_object))` always gave the same result (the first chunk of the file)
as it would create a new iterator starting at the top of the file. This is now fixed as well, so
a first call to `next(iter(some_grid_out_object))` gives the first line, and subsequent calls return
the subsequent lines.
This change uses a cursor to download all the chunks in a GridFS file
instead of using individual find_one operations to read each chunk.
Detect truncated/missing/extra chunks in _GridOutChunkIterator.
Only detect extra chunks after reading the final chunk, not on every
call to read().
Retry once after CursorNotFound for backward compatibility.
This change removes the u() helper from bson.py3compat
and all of its uses in the driver and tests. PyPy3 continues
to be supported since, even though it is based on python 3.2.5,
it has always supported the u string prefix.
The README and install docs are now explicit about PyPy(3) support.
- Changed parameter names (default values and behaviors remain the same):
- spec (spec_or_id in find_one) -> filter
- fields -> projection
- partial -> allow_partial_results
- The "timeout" option is renamed to "no_cursor_timeout" with its default
changed to False.
- The tailable, await_data, and exhaust options will be replaced with a
cursor_type option. Valid values:
- cursor.NON_TAILABLE
- cursor.TAILABLE
- cursor.TAILABLE_AWAIT
- cursor.EXHAUST
- The following options are added:
- oplog_replay (bool - default False) - only valid with tailable cursors
against the oplog.
- modifiers (document - default None) - A dict of query modifiers. See
http://docs.mongodb.org/manual/reference/operator/query-modifier/#modifiers for
options.
- The following options are removed, replaced by the "modifiers" option:
- max_scan
- snapshot
- The as_class option is removed. Use Collection.with_options instead.
In PyMongo 3, GridOut always begins disconnected and connects on demand. It
doesn't have the same bug as on the v2.8 branch, since __getattr__ calls
_ensure_file().
Most tests now inherit from IntegrationTest and use self.client for all MongoDB
operations. self.client is now a replica set connection if an RS is available,
otherwise a connection to a standalone.
Replace MongoClient with an implementation that relies on Cluster and Server. The new MongoClient takes over MongoReplicaSetClient's responsibilities.
Authentication, secondary-pinning, and Mongos high-availability are broken and will be reimplemented in a future commit. RS tests are temporarily disabled.
- Renamed to acceptableLatencyMS since it is also used
in choosing a new mongos during mongos HA failover.
- Moved to a global immutable setting. The expectation is
that the value would be determined by a network/system
admin. Changing it per operation doesn't make a lot of
sense.
Note - it's possible the name of this option may change again
before 3.0 is released.
