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* bpo-39007: Add auditing events to functions in winreg (GH-17541)Steve Dower2019-12-092-0/+37
| | | Also allows winreg.CloseKey() to accept same types as other functions.
* bpo-39003: Make sure all test are the same when using -R in test_unparse ↵Pablo Galindo2019-12-091-7/+14
| | | | (GH-17537)
* bpo-39002: Fix simple typo: tranlation -> translation (GH-17517)Tim Gates2019-12-091-2/+2
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* bpo-20443: No longer make sys.argv[0] absolute for script (GH-17534)Victor Stinner2019-12-092-5/+5
| | | | | In Python 3.9.0a1, sys.argv[0] was made an asolute path if a filename was specified on the command line. Revert this change, since most users expect sys.argv to be unmodified.
* bpo-34776: Fix dataclasses to support __future__ "annotations" mode (#9518)Yury Selivanov2019-12-092-0/+24
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* bpo-38992: avoid fsum test failure from constant-folding (GH-17513)Mark Dickinson2019-12-091-1/+7
| | | | | | * Issue 38992: avoid fsum test failure * Add NEWS entry
* bpo-37228: Fix loop.create_datagram_endpoint()'s usage of SO_REUSEADDR (#17311)Kyle Stanley2019-12-091-17/+24
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* bpo-38916: array.array: remove fromstring() and tostring() (GH-17487)Victor Stinner2019-12-091-20/+0
| | | | array.array: Remove tostring() and fromstring() methods. They were aliases to tobytes() and frombytes(), deprecated since Python 3.2.
* bpo-38547: Fix test_pty if the process is the session leader (GH-17519)Victor Stinner2019-12-091-3/+16
| | | | | Fix test_pty: if the process is the session leader, closing the master file descriptor raises a SIGHUP signal: simply ignore SIGHUP when running the tests.
* bpo-38708: email: Fix a potential IndexError when parsing Message-ID (GH-17504)Abhilash Raj2019-12-081-0/+6
| | | | Fix a potential IndexError when passing an empty value to the message-id parser. Instead, HeaderParseError should be raised.
* bpo-38698: Add a new InvalidMessageID token to email header parser. (GH-17503)Abhilash Raj2019-12-081-3/+37
| | | | This adds a new InvalidMessageID token to the email header parser which can be used to represent invalid message-id headers in the parse tree.
* bpo-38994: Implement __class_getitem__ for PathLike (GH-17498)Batuhan Taşkaya2019-12-082-0/+6
| | | https://bugs.python.org/issue38994
* bpo-38979: fix ContextVar "__class_getitem__" method (GH-17497)AMIR2019-12-081-3/+4
| | | | | | | | | | now contextvars.ContextVar "__class_getitem__" method returns ContextVar class, not None. https://bugs.python.org/issue38979 Automerge-Triggered-By: @asvetlov
* bpo-38991: Remove test.support.strip_python_stderr() (GH-17490)Victor Stinner2019-12-089-54/+32
| | | | | test.support: run_python_until_end(), assert_python_ok() and assert_python_failure() functions no longer strip whitespaces from stderr.
* bpo-38820: OpenSSL 3.0.0 compatibility. (GH-17190)Christian Heimes2019-12-071-6/+6
| | | | | | | | | | test_openssl_version now accepts version 3.0.0. getpeercert() no longer returns IPv6 addresses with a trailing new line. Signed-off-by: Christian Heimes <christian@python.org> https://bugs.python.org/issue38820
* bpo-29636: json.tool: Add document for indentation options. (GH-17482)Daniel Himmelstein2019-12-071-33/+27
| | | And updated test to use subprocess.run
* bpo-38529: Fix asyncio stream warning (GH-17474)Andrew Svetlov2019-12-071-53/+0
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* bpo-27413: json.tool: Add --no-ensure-ascii option. (GH-17472)wim glenn2019-12-061-0/+22
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* bpo-38698: Prevent UnboundLocalError to pop up in parse_message_id (GH-17277)Claudiu Popa2019-12-041-0/+6
| | | | | | | | | parse_message_id() was improperly using a token defined inside an exception handler, which was raising `UnboundLocalError` on parsing an invalid value. https://bugs.python.org/issue38698
* bpo-33684: json.tool: Use utf-8 for infile and outfile. (GH-17460)Inada Naoki2019-12-041-3/+18
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* bpo-38962: Fix reference leak in test_httpservers (GH-17454)Pablo Galindo2019-12-041-5/+9
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* bpo-29636: Add --(no-)indent arguments to json.tool (GH-345)Daniel Himmelstein2019-12-041-0/+41
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* bpo-38270: Fix indentation of test_hmac assertions (GH-17446)stratakis2019-12-031-2/+2
| | | | | | | | Since https://github.com/python/cpython/commit/c64a1a61e6fc542cada40eb069a239317e1af36e two assertions were indented and thus ignored when running test_hmac. This PR fixes it. As the change is quite trivial I didn't add a NEWS entry. https://bugs.python.org/issue38270
* bpo-38945: UU Encoding: Don't let newline in filename corrupt the output ↵Matthew Rollings2019-12-021-0/+9
| | | | format (#17418)
* bpo-38815: Accept TLSv3 default in min max test (GH-NNNN) (GH-17437)torsava2019-12-021-2/+8
| | | | | | | Make ssl tests less strict and also accept TLSv3 as the default maximum version. This change unbreaks test_min_max_version on Fedora 32. https://bugs.python.org/issue38815
* bpo-38449: Add URL delimiters test cases (#16729)Dong-hee Na2019-12-011-0/+15
| | | | | | * bpo-38449: Add tricky test cases * bpo-38449: Reflect codereview
* bpo-37523: Raise ValueError for I/O operations on a closed ↵Daniel Hillier2019-11-301-0/+14
| | | | | zipfile.ZipExtFile. (GH-14658) Raises ValueError when calling the following on a closed zipfile.ZipExtFile: read, readable, seek, seekable, tell.
* bpo-38920: Add audit hooks for when sys.excepthook and sys.unraisable hooks ↵Steve Dower2019-11-282-14/+79
| | | | | are invoked (GH-17392) Also fixes some potential segfaults in unraisable hook handling.
* bpo-38927: Use python -m pip to upgrade venv deps (GH-17403)Tzu-ping Chung2019-11-271-3/+5
| | | I suggest you add `bpo-NNNNN: ` as a prefix for the first commit for future PRs. Thanks!
* bpo-26730: Fix SpooledTemporaryFile data corruption (GH-17400)Inada Naoki2019-11-271-11/+14
| | | | | | | SpooledTemporaryFile.rollback() might cause data corruption when it is in text mode. Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com>
* bpo-38688, shutil.copytree: consume iterator and create list of entries to ↵Bruno P. Kinoshita2019-11-271-0/+11
| | | | prevent infinite recursion (GH-17098)
* bpo-27145: small_ints[x] could be returned in long_add and long_sub (GH-15716)HongWeipeng2019-11-261-0/+8
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* bpo-38328: Speed up the creation time of constant list and set display. ↵Brandt Bucher2019-11-261-1/+1
| | | | (GH-17114)
* bpo-20928: support base-URL and recursive includes in etree.ElementInclude ↵Stefan Behnel2019-11-251-0/+82
| | | | | | | | | | | | (#5723) * bpo-20928: bring elementtree's XInclude support en-par with the implementation in lxml by adding support for recursive includes and a base-URL. * bpo-20928: Support xincluding the same file multiple times, just not recursively. * bpo-20928: Add 'max_depth' parameter to xinclude that limits the maximum recursion depth to 6 by default. * Add news entry for updated ElementInclude support
* bpo-38870: Expose a function to unparse an ast object in the ast module ↵Pablo Galindo2019-11-241-47/+57
| | | | | | | (GH-17302) Add ast.unparse() as a function in the ast module that can be used to unparse an ast.AST object and produce a string with code that would produce an equivalent ast.AST object when parsed.
* bpo-38876: Raise pickle.UnpicklingError when loading an item from memo for ↵Claudiu Popa2019-11-241-1/+3
| | | | | | | | | | | | | | | invalid input (GH-17335) The previous code was raising a `KeyError` for both the Python and C implementation. This was caused by the specified index of an invalid input which did not exist in the memo structure, where the pickle stores what objects it has seen. The malformed input would have caused either a `BINGET` or `LONG_BINGET` load from the memo, leading to a `KeyError` as the determined index was bogus. https://bugs.python.org/issue38876 https://bugs.python.org/issue38876
* Better runtime TypedDict (GH-17214)Zac Hatfield-Dodds2019-11-241-0/+7
| | | | | This patch enables downstream projects inspecting a TypedDict subclass at runtime to tell which keys are optional. This is essential for generating test data with Hypothesis or validating inputs with typeguard or pydantic.
* bpo-38881: choices() raises ValueError when all weights are zero (GH-17362)Raymond Hettinger2019-11-231-0/+5
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* bpo-38804: Fix REDoS in http.cookiejar (GH-17157)bcaller2019-11-221-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regex http.cookiejar.LOOSE_HTTP_DATE_RE was vulnerable to regular expression denial of service (REDoS). LOOSE_HTTP_DATE_RE.match is called when using http.cookiejar.CookieJar to parse Set-Cookie headers returned by a server. Processing a response from a malicious HTTP server can lead to extreme CPU usage and execution will be blocked for a long time. The regex contained multiple overlapping \s* capture groups. Ignoring the ?-optional capture groups the regex could be simplified to \d+-\w+-\d+(\s*\s*\s*)$ Therefore, a long sequence of spaces can trigger bad performance. Matching a malicious string such as LOOSE_HTTP_DATE_RE.match("1-c-1" + (" " * 2000) + "!") caused catastrophic backtracking. The fix removes ambiguity about which \s* should match a particular space. You can create a malicious server which responds with Set-Cookie headers to attack all python programs which access it e.g. from http.server import BaseHTTPRequestHandler, HTTPServer def make_set_cookie_value(n_spaces): spaces = " " * n_spaces expiry = f"1-c-1{spaces}!" return f"b;Expires={expiry}" class Handler(BaseHTTPRequestHandler): def do_GET(self): self.log_request(204) self.send_response_only(204) # Don't bother sending Server and Date n_spaces = ( int(self.path[1:]) # Can GET e.g. /100 to test shorter sequences if len(self.path) > 1 else 65506 # Max header line length 65536 ) value = make_set_cookie_value(n_spaces) for i in range(99): # Not necessary, but we can have up to 100 header lines self.send_header("Set-Cookie", value) self.end_headers() if __name__ == "__main__": HTTPServer(("", 44020), Handler).serve_forever() This server returns 99 Set-Cookie headers. Each has 65506 spaces. Extracting the cookies will pretty much never complete. Vulnerable client using the example at the bottom of https://docs.python.org/3/library/http.cookiejar.html : import http.cookiejar, urllib.request cj = http.cookiejar.CookieJar() opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj)) r = opener.open("http://localhost:44020/") The popular requests library was also vulnerable without any additional options (as it uses http.cookiejar by default): import requests requests.get("http://localhost:44020/") * Regression test for http.cookiejar REDoS If we regress, this test will take a very long time. * Improve performance of http.cookiejar.ISO_DATE_RE A string like "444444" + (" " * 2000) + "A" could cause poor performance due to the 2 overlapping \s* groups, although this is not as serious as the REDoS in LOOSE_HTTP_DATE_RE was.
* bpo-38866: Remove asyncore from test_pyclbr.py (GH-17316)jacksonriley2019-11-221-1/+1
| | | Co-Authored-By: Kyle Stanley <aeros167@gmail.com>
* bpo-38863: Improve is_cgi() in http.server (GH-17312)Siwon Kang2019-11-221-0/+24
| | | | | | | | | | | | | | | | | | | is_cgi() function of http.server library does not currently handle a cgi script if one of the cgi_directories is located at the sub-directory of given path. Since is_cgi() in CGIHTTPRequestHandler class separates given path into (dir, rest) based on the first seen '/', multi-level directories like /sub/dir/cgi-bin/hello.py is divided into head=/sub, rest=dir/cgi-bin/hello.py then check whether '/sub' exists in cgi_directories = [..., '/sub/dir/cgi-bin']. This patch makes the is_cgi() keep expanding dir part to the next '/' then checking if that expanded path exists in the cgi_directories. Signed-off-by: Siwon Kang <kkangshawn@gmail.com> https://bugs.python.org/issue38863
* bpo-37838: get_type_hints for wrapped functions with forward reference ↵benedwards142019-11-212-0/+22
| | | | | | (GH-17126) https://bugs.python.org/issue37838
* bpo-38692: Skip test_posix.test_pidfd_open() on EPERM (GH-17290)Victor Stinner2019-11-211-0/+2
| | | | | | Skip the test_posix.test_pidfd_open() test if os.pidfd_open() fails with a PermissionError. This situation can happen in a Linux sandbox using a syscall whitelist which doesn't allow the pidfd_open() syscall yet (like systemd-nspawn).
* bpo-38875: test_capi: trashcan tests require cpu resource (GH-17314)Victor Stinner2019-11-211-0/+2
| | | test_capi: trashcan tests now require the test "cpu" resource.
* Produce cleaner bytecode for 'with' and 'async with' by generating separate ↵Mark Shannon2019-11-212-34/+55
| | | | | | code for normal and exceptional paths. (#6641) Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication. Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
* bpo-38841: Skip asyncio test_create_datagram_endpoint_existing_sock_unix ↵xdegaye2019-11-201-1/+1
| | | | | | | | | | | | | (GH-17294) on platforms lacking a functional bind() for named unix domain sockets https://bugs.python.org/issue38841 Automerge-Triggered-By: @asvetlov
* closes bpo-38712: Add signal.pidfd_send_signal. (GH-17070)Benjamin Peterson2019-11-191-0/+19
| | | | | | | | This exposes a Linux-specific syscall for sending a signal to a process identified by a file descriptor rather than a pid. For simplicity, we don't support the siginfo_t parameter to the syscall. This parameter allows implementing a pidfd version of rt_sigqueueinfo(2), which Python also doesn't support.
* bpo-37957: Allow regrtest to receive a file with test (and subtests) to ↵Pablo Galindo2019-11-196-24/+166
| | | | | | | ignore (GH-16989) When building Python in some uncommon platforms there are some known tests that will fail. Right now, the test suite has the ability to ignore entire tests using the -x option and to receive a filter file using the --matchfile filter. The problem with the --matchfile option is that it receives a file with patterns to accept and when you want to ignore a couple of tests and subtests, is too cumbersome to lists ALL tests that are not the ones that you want to accept and he problem with -x is that is not easy to ignore just a subtests that fail and the whole test needs to be ignored. For these reasons, add a new option to allow to ignore a list of test and subtests for these situations.
* Remove binding of captured exceptions when not used to reduce the chances of ↵Pablo Galindo2019-11-1911-18/+18
| | | | | | | creating cycles (GH-17246) Capturing exceptions into names can lead to reference cycles though the __traceback__ attribute of the exceptions in some obscure cases that have been reported previously and fixed individually. As these variables are not used anyway, we can remove the binding to reduce the chances of creating reference cycles. See for example GH-13135
* bpo-38707: Fix for multiprocessing.Process MainThread.native_id (GH-17088)Jake Tesler2019-11-191-0/+22
| | | | | | | | | | | | | | | | | | | This PR implements a fix for `multiprocessing.Process` objects; the error occurs when Processes are created using either `fork` or `forkserver` as the `start_method`. In these instances, the `MainThread` of the newly created `Process` object retains all attributes from its parent's `MainThread` object, including the `native_id` attribute. The resulting behavior is such that the new process' `MainThread` captures an incorrect/outdated `native_id` (the parent's instead of its own). This change forces the Process object to update its `native_id` attribute during the bootstrap process. cc @vstinner https://bugs.python.org/issue38707 Automerge-Triggered-By: @pitrou
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