bpo-32030: Enhance Py_Main() by vstinner · Pull Request #4412

bpo-32030: Enhance Py_Main() by vstinner · Pull Request #4412 · python/cpython

Parse more env vars in Py_Main():

* Add more options to _PyCoreConfig:

  * faulthandler
  * tracemalloc
  * importtime

* Move code to parse environment variables from _Py_InitializeCore()
  to Py_Main(). This change fixes a regression from Python 3.6:
  PYTHONUNBUFFERED is now read before calling pymain_init_stdio().
* _PyFaulthandler_Init() and _PyTraceMalloc_Init() now take an
  argument to decide if the module has to be enabled at startup.
* tracemalloc_start() is now responsible to check the maximum number
  of frames.

Other changes:

* Cleanup Py_Main():

  * Rename some pymain_xxx() subfunctions
  * Add pymain_run_python() subfunction

* Cleanup Py_NewInterpreter()
* _PyInterpreterState_Enable() now reports failure
* init_hash_secret() now considers pyurandom() failure as an "user
  error": don't fail with abort().
* pymain_optlist_append() and pymain_strdup() now sets err on memory
  allocation failure.

Fix compilation on Windows.

jimmylai added a commit to jimmylai/cpython that referenced this pull request

Nov 17, 2017

* 'master' of https://github.com/python/cpython: (550 commits)
  bpo-31867: Remove duplicates in default mimetypes. (python#4388)
  tokenizer: Remove unused tabs options (python#4422)
  bpo-31691: Specify where to find build instructions for the Windows installer (python#4426)
  Fix typo in atexit documentation. (pythonGH-4419)
  bpo-31702: Allow to specify rounds for SHA-2 hashing in crypt.mksalt(). (python#4110)
  bpo-32043: New "developer mode": "-X dev" option (python#4413)
  bpo-30349: Raise FutureWarning for nested sets and set operations (python#1553)
  bpo-32037: Use the INT opcode for 32-bit integers in protocol 0 pickles. (python#4407)
  bpo-30143: 2to3 now generates a code that uses abstract collection classes (python#1262)
  bpo-32030: Enhance Py_Main() (python#4412)
  bpo-32030: Split Py_Main() into subfunctions (python#4399)
  bpo-32034: Make IncompleteReadError & LimitOverrunError pickleable python#4409
  bpo-32025: Add time.thread_time() (python#4410)
  bpo-32018: Fix inspect.signature repr to follow PEP 8 (python#4408)
  bpo-30399: Get rid of trailing comma in the repr of BaseException. (python#1650)
  bpo-30950: Convert round() to Argument Clinic. (python#2740)
  bpo-32011: Revert "Issue python#15480: Remove the deprecated and unused TYPE_INT64 code from marshal." (python#4381)
  bpo-32023: Disallow genexprs without parenthesis in class definitions. (python#4400)
  bpo-31949: Fixed several issues in printing tracebacks (PyTraceBack_Print()). (python#4289)
  bpo-32032: Test both implementations of module-level pickle API. (python#4401)
  ...