:py:mod:`exiftool.constants`
============================

.. py:module:: exiftool.constants

.. autoapi-nested-parse::

   This submodule defines constants which are used by other modules in the package



Module Contents
---------------

.. py:data:: DEFAULT_BLOCK_SIZE
   :type: int
   :value: 4096

   The default block size when reading from exiftool.  The standard value
   should be fine, though other values might give better performance in
   some cases.


.. py:data:: DEFAULT_EXECUTABLE
   :type: str

   The name of the default executable to run.

   ``exiftool.exe`` (Windows) or ``exiftool`` (Linux/Mac/non-Windows platforms)

   By default, the executable is searched for on one of the paths listed in the
   ``PATH`` environment variable.  If it's not on the ``PATH``, a full path should be specified in the
   ``executable`` argument of the ExifTool constructor (:py:meth:`exiftool.ExifTool.__init__`).


.. py:data:: EXIFTOOL_MINIMUM_VERSION
   :type: str
   :value: '12.15'

   this is the minimum *exiftool* version required for current version of PyExifTool

   * 8.40 / 8.60 (production): implemented the -stay_open flag
   * 12.10 / 12.15 (production): implemented exit status on -echo4


.. py:data:: PLATFORM_LINUX
   :type: bool

   sys.platform check, set to True if Linux


.. py:data:: PLATFORM_WINDOWS
   :type: bool

   sys.platform check, set to True if Windows


.. py:data:: PR_SET_PDEATHSIG
   :type: int
   :value: 1

   Extracted from linux/prctl.h

   Allows a kill signal to be sent to child processes when the parent unexpectedly dies


.. py:data:: SW_FORCEMINIMIZE
   :type: int
   :value: 11

   Windows ShowWindow constant from win32con

   Indicates the launched process window should start minimized