Commit Graph

287 Commits

Author SHA1 Message Date
Serhiy Storchaka 46936d5a71
Improve highlighting of some code blocks. (GH-6401) 2018-04-08 19:18:04 +03:00
Cheryl Sabella 186b606d8a bpo-17232: Clarify docs for -O and -OO command line options (#5839)
The 'optimization' is for space in the executable file, not for run time.
2018-02-24 22:04:40 -05:00
TROUVERIE Joachim e8eb972514 Correct venv doc (fix #32540) (#5736) 2018-02-18 11:52:36 -05:00
Eitan Adler 3384d38d51 Fix installation instructions for *nix (GH-5605)
Remove pkg_add -r python from FreeBSD installation section.
Moved to OpenBSD.
2018-02-13 18:44:01 -08:00
Steve Dower 15ea3a6a32
bpo-32699: Improves doc for .pth files in presense of a ._pth file (#5399) 2018-01-29 10:34:09 +11:00
Sanyam Khurana 338cd83c5d bpo-25910: Link redirections in docs (#1933)
Fixes some redirection links in docs.
2018-01-20 01:25:37 +01:00
Nick Coghlan 9b99747386
bpo-31975 (PEP 565): Show DeprecationWarning in __main__ (GH-4458)
- primary change is to add a new default filter entry for
  'default::DeprecationWarning:__main__'
- secondary change is an internal one to cope with plain
  strings in the warning module's internal filter list
  (this avoids the need to create a compiled regex object
  early on during interpreter startup)
- assorted documentation updates, including many more
  examples of configuring the warnings settings
- additional tests to ensure that both the pure Python and
  the C accelerated warnings modules have the expected
  default configuration
2018-01-08 12:45:02 +10:00
Victor Stinner 9454060e84
bpo-29240, bpo-32030: Py_Main() re-reads config if encoding changes (#4899)
bpo-29240, bpo-32030: If the encoding change (C locale coerced or
UTF-8 Mode changed), Py_Main() now reads again the configuration with
the new encoding.

Changes:

* Add _Py_UnixMain() called by main().
* Rename pymain_free_pymain() to pymain_clear_pymain(), it can now be
  called multipled times.
* Rename pymain_parse_cmdline_envvars() to pymain_read_conf().
* Py_Main() now clears orig_argc and orig_argv at exit.
* Remove argv_copy2, Py_Main() doesn't modify argv anymore. There is
  no need anymore to get two copies of the wchar_t** argv.
* _PyCoreConfig: add coerce_c_locale and coerce_c_locale_warn.
* Py_UTF8Mode is now initialized to -1.
* Locale coercion (PEP 538) now respects -I and -E options.
2017-12-16 04:54:22 +01:00
Victor Stinner 642d67b4f2
bpo-32329: Add versionchanged to -R option doc (#4884) 2017-12-15 16:29:01 +01:00
Victor Stinner 358e5e17a5
bpo-32329: Fix -R option for hash randomization (#4873)
bpo-32329, bpo-32030:

* The -R option now turns on hash randomization when the
  PYTHONHASHSEED environment variable is set to 0 Previously, the
  option was ignored.
* sys.flags.hash_randomization is now properly set to 0 when hash
  randomization is turned off by PYTHONHASHSEED=0.
* _PyCoreConfig_ReadEnv() now reads the PYTHONHASHSEED environment
  variable. _Py_HashRandomization_Init() now only apply the
  configuration, it doesn't read PYTHONHASHSEED anymore.
2017-12-15 00:51:22 +01:00
Victor Stinner 91106cd9ff
bpo-29240: PEP 540: Add a new UTF-8 Mode (#855)
* Add -X utf8 command line option, PYTHONUTF8 environment variable
  and a new sys.flags.utf8_mode flag.
* If the LC_CTYPE locale is "C" at startup: enable automatically the
  UTF-8 mode.
* Add _winapi.GetACP(). encodings._alias_mbcs() now calls
  _winapi.GetACP() to get the ANSI code page
* locale.getpreferredencoding() now returns 'UTF-8' in the UTF-8
  mode. As a side effect, open() now uses the UTF-8 encoding by
  default in this mode.
* Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding
  in the UTF-8 Mode.
* Update subprocess._args_from_interpreter_flags() to handle -X utf8
* Skip some tests relying on the current locale if the UTF-8 mode is
  enabled.
* Add test_utf8mode.py.
* _Py_DecodeUTF8_surrogateescape() gets a new optional parameter to
  return also the length (number of wide characters).
* pymain_get_global_config() and pymain_set_global_config() now
  always copy flag values, rather than only copying if the new value
  is greater than the old value.
2017-12-13 12:29:09 +01:00
Victor Stinner 747f48e2e9
bpo-32230: Set sys.warnoptions with -X dev (#4820)
Rather than supporting dev mode directly in the warnings module, this
instead adjusts the initialisation code to add an extra 'default'
entry to sys.warnoptions when dev mode is enabled.

This ensures that dev mode behaves *exactly* as if `-Wdefault` had
been passed on the command line, including in the way it interacts
with `sys.warnoptions`, and with other command line flags like `-bb`.

Fix also bpo-20361: have -b & -bb options take precedence over any
other warnings options.

Patch written by Nick Coghlan, with minor modifications of Victor Stinner.
2017-12-12 22:59:48 +01:00
Benjamin Peterson 42aa93b8ff
closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)
Python now supports checking bytecode cache up-to-dateness with a hash of the
source contents rather than volatile source metadata. See the PEP for details.

While a fairly straightforward idea, quite a lot of code had to be modified due
to the pervasiveness of pyc implementation details in the codebase. Changes in
this commit include:

- The core changes to importlib to understand how to read, validate, and
  regenerate hash-based pycs.

- Support for generating hash-based pycs in py_compile and compileall.

- Modifications to our siphash implementation to support passing a custom
  key. We then expose it to importlib through _imp.

- Updates to all places in the interpreter, standard library, and tests that
  manually generate or parse pyc files to grok the new format.

- Support in the interpreter command line code for long options like
  --check-hash-based-pycs.

- Tests and documentation for all of the above.
2017-12-09 10:26:52 -08:00
Sanyam Khurana 1b4587a246 bpo-25910: Fixes redirection from http to https (#4674) 2017-12-06 17:39:33 +01:00
Victor Stinner 5e3806f8cf
bpo-32101: Add PYTHONDEVMODE environment variable (#4624)
* bpo-32101: Add sys.flags.dev_mode flag
  Rename also the "Developer mode" to the "Development mode".
* bpo-32101: Add PYTHONDEVMODE environment variable
  Mention it in the development chapiter.
2017-11-30 11:40:24 +01:00
Victor Stinner 5d39e04290
bpo-32030: Rework memory allocators (#4625)
* Fix _PyMem_SetupAllocators("debug"): always restore allocators to
  the defaults, rather than only caling _PyMem_SetupDebugHooks().
* Add _PyMem_SetDefaultAllocator() helper to set the "default"
  allocator.
* Add _PyMem_GetAllocatorsName(): get the name of the allocators
* main() now uses debug hooks on memory allocators if Py_DEBUG is
  defined, rather than calling directly malloc()
* Document default memory allocators in C API documentation
* _Py_InitializeCore() now fails with a fatal user error if
  PYTHONMALLOC value is an unknown memory allocator, instead of
  failing with a fatal internal error.
* Add new tests on the PYTHONMALLOC environment variable
* Add support.with_pymalloc()
* Add the _testcapi.WITH_PYMALLOC constant and expose it as
   support.with_pymalloc().
* sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so
   replace it with support.with_pymalloc().
* pythoninfo: add _testcapi collector for pymem
2017-11-29 17:20:38 +01:00
Victor Stinner 84c4b1938f
bpo-32124: Document C functions safe before init (#4540)
Explicitly document C functions and C variables that can be set
before Py_Initialize().
2017-11-24 22:30:27 +01:00
Victor Stinner bc9b6e29cb
bpo-32043: Rephrase -X dev documentation (#4478)
* should not be more verbose if the code is correct
* enabled checks can be "expensive"
2017-11-20 18:59:50 -08:00
Victor Stinner 09f3a8a124
bpo-32089: Fix warnings filters in dev mode (#4482)
The developer mode (-X dev) now creates all default warnings filters
to order filters in the correct order to always show ResourceWarning
and make BytesWarning depend on the -b option.

Write a functional test to make sure that ResourceWarning is logged
twice at the same location in the developer mode.

Add a new 'dev_mode' field to _PyCoreConfig.
2017-11-20 17:32:40 -08:00
Victor Stinner c5a2071586
bpo-32050: Fix -x option documentation (#4475)
The line number in correct when using the -x option: Py_Main() uses
ungetc() to not skip the first newline character.
2017-11-20 08:08:03 -08:00
Victor Stinner 44862df2ee
bpo-32047: -X dev enables asyncio debug mode (#4418)
The new -X dev command line option now also enables asyncio debug
mode.
2017-11-20 07:14:07 -08:00
Victor Stinner ccb0442a33
bpo-32043: New "developer mode": "-X dev" option (#4413)
Add a new "developer mode": new "-X dev" command line option to
enable debug checks at runtime.

Changes:

* Add unit tests for -X dev
* test_cmd_line: replace test.support with support.
* Fix _PyRuntimeState_Fini(): Use the same memory allocator
   than _PyRuntimeState_Init().
* Fix _PyMem_GetDefaultRawAllocator()
2017-11-16 03:20:31 -08:00
Barry Warsaw 962e2a7317
Fix a minor typo and hyphenate "multi-threading" (#4237) 2017-11-06 18:18:40 -08:00
Barry Warsaw 700d2e4755
bpo-31415: Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime (#4240)
Support PYTHONPROFILEIMPORTTIME envvar equivalent to -X importtime
2017-11-02 16:13:36 -07:00
cocoatomo d609b0c24e bpo-31053: Remove redundant 'venv' argument in venv example (GH-2907) 2017-10-27 07:42:11 +03:00
Berker Peksag 7f58097083 bpo-28647: Update -u documentation after bpo-30404 (GH-3961) 2017-10-13 15:16:31 +03:00
Barry Warsaw 36c1d1f1e5 PEP 553 built-in breakpoint() function (bpo-31353) (#3355)
Implement PEP 553, built-in breakpoint() with support from sys.breakpointhook(), along with documentation and tests.  Closes bpo-31353
2017-10-05 12:11:18 -04:00
Serhiy Storchaka 77732be801 bpo-30404: The -u option now makes the stdout and stderr streams totally unbuffered. (#1667) 2017-10-04 20:25:40 +03:00
INADA Naoki 1a87de7fcf bpo-31415: Add `-X importtime` option (GH-3490)
It shows show import time of each module.
It's useful for optimizing startup time.

Typical usage: python -X importtime -c 'import requests'
2017-10-03 19:46:34 +09:00
Lisa Hewus Fresh 384899dfae bpo-30737: Update DevGuide links to new URL (GH-3228)
Update old devguide links from https://docs.python.org/devguide to https://devguide.python.org
2017-08-30 09:37:43 -07:00
Nick Coghlan eb81795d7d bpo-30565: Add PYTHONCOERCECLOCALE=warn runtime flag (GH-2260)
- removes PY_WARN_ON_C_LOCALE build time flag
- locale coercion and compatibility warnings are now always compiled
  in, but are off by default
- adds PYTHONCOERCECLOCALE=warn runtime option to aid in
  debugging potentially locale related compatibility problems

Due to not-yet-resolved test failures on *BSD systems (including
Mac OS X), this also temporarily disables UTF-8 as a locale coercion
target, and skips testing the interpreter's behavior in the POSIX locale.
2017-06-18 12:29:42 +10:00
csabella 4ebf03d109 Fix trivial typo in Readme (GH-2185)
Replace platform with platforms.
2017-06-14 06:32:06 -07:00
Nick Coghlan 6ea4186de3 bpo-28180: Implementation for PEP 538 (#659)
- new PYTHONCOERCECLOCALE config setting
- coerces legacy C locale to C.UTF-8, C.utf8 or UTF-8 by default
- always uses C.UTF-8 on Android
- uses `surrogateescape` on stdin and stdout in the coercion
  target locales
- configure option to disable locale coercion at build time
- configure option to disable C locale warning at build time
2017-06-11 13:16:15 +10:00
Berker Peksag 87fa8a780e bpo-29898: Fix incorrect env variable name (GH-1576)
It should read PYTHONLEGACYWINDOWSSTDIO as stated
in section "Add legacy mode" in PEP 528.
2017-05-16 12:36:45 +03:00
Wieland Hoffmann 80a3da4d4a Improve the grammar in windows.rst (GH-1330) 2017-04-28 09:12:57 -07:00
Sebastian Vetter d1ae24e888 Correct the README link in Unix install docs (#1245) 2017-04-21 10:24:57 -07:00
Xiang Zhang 0710d75425 bpo-29770: remove outdated PYO related info (GH-590) 2017-03-11 13:02:52 +08:00
Benjamin Peterson 35a1f7f62d massage English for -X descriptions a bit 2017-02-09 22:31:17 -08:00
Senthil Kumaran b0d0e19dd5 issue26149 - Point to Wiki for Editors and Python IDEs on Unix.
Patch contributed by Mariatta Wijaya.
2017-01-25 01:47:49 -08:00
Steve Dower 20367420c8 Issue #28896: Deprecate WindowsRegistryFinder 2016-12-07 13:02:27 -08:00
INADA Naoki f576343179 Issue #28532: Add what's new entry for python -VV option 2016-11-24 17:20:40 +09:00
INADA Naoki 0e175a6e76 Issue #28532: Show sys.version when -V option is supplied twice 2016-11-21 20:57:14 +09:00
Martin Panter 9440787867 Issue #26638: Merge option warning fixes from 3.5 into 3.6 2016-10-30 04:21:23 +00:00
Martin Panter b8c5f54248 Issue #26638: Work around more CLI options that can’t be linked
* Cannot seem to link directly to main options from the “unittest” module,
  because that module has its own set of options
* Mask out linking for options that no longer exist in Python 3
2016-10-30 04:20:23 +00:00
Martin Panter 5c67933940 Issue #26638: Mask undefined CLI options to defeat new Sphinx warnings 2016-10-30 04:20:17 +00:00
Victor Stinner c6b1e15788 Close #28479: Fix reST syntax in windows.rst
Patch written by Julien Palard.
2016-10-20 00:45:50 +02:00
Steve Dower fb12ce1cb3 Issue #28218: Fixes versionadded description in using/windows.rst 2016-10-03 09:15:27 -07:00
Steve Dower ed51b26858 Issue #28137: Renames Windows path file to ._pth
Issue #28138: Windows ._pth file should allow import site
2016-09-17 12:54:06 -07:00
Steve Dower 3cdd7f57a2 Add links from whatsnew to Windows docs. 2016-09-09 15:22:13 -07:00
Steve Dower 814f9ae33e Adds documentation for pythonXX.zip as a landmark. 2016-09-09 15:07:46 -07:00