https://github.com/python/cpython/commit/650f9e4c94711ff49ea4e13bf800945a6147b7e0 commit: 650f9e4c94711ff49ea4e13bf800945a6147b7e0 branch: main author: Serhiy Storchaka <[email protected]> committer: serhiy-storchaka <[email protected]> date: 2024-01-22T08:42:50Z summary:
gh-114115: Update documentation of array.array (GH-114117) Co-authored-by: Hugo van Kemenade <[email protected]> files: M Doc/library/array.rst diff --git a/Doc/library/array.rst b/Doc/library/array.rst index ad622627724217..a0e8bb20a098fd 100644 --- a/Doc/library/array.rst +++ b/Doc/library/array.rst @@ -79,14 +79,16 @@ The module defines the following type: .. class:: array(typecode[, initializer]) A new array whose items are restricted by *typecode*, and initialized - from the optional *initializer* value, which must be a list, a - :term:`bytes-like object`, or iterable over elements of the - appropriate type. + from the optional *initializer* value, which must be a :class:`bytes` + or :class:`bytearray` object, a Unicode string, or iterable over elements + of the appropriate type. - If given a list or string, the initializer is passed to the new array's - :meth:`fromlist`, :meth:`frombytes`, or :meth:`fromunicode` method (see below) - to add initial items to the array. Otherwise, the iterable initializer is - passed to the :meth:`extend` method. + If given a :class:`bytes` or :class:`bytearray` object, the initializer + is passed to the new array's :meth:`frombytes` method; + if given a Unicode string, the initializer is passed to the + :meth:`fromunicode` method; + otherwise, the initializer's iterator is passed to the :meth:`extend` method + to add initial items to the array. Array objects support the ordinary sequence operations of indexing, slicing, concatenation, and multiplication. When using slice assignment, the assigned @@ -152,10 +154,11 @@ The module defines the following type: must be the right type to be appended to the array. - .. method:: frombytes(s) + .. method:: frombytes(buffer) - Appends items from the string, interpreting the string as an array of machine - values (as if it had been read from a file using the :meth:`fromfile` method). + Appends items from the :term:`bytes-like object`, interpreting + its content as an array of machine values (as if it had been read + from a file using the :meth:`fromfile` method). .. versionadded:: 3.2 :meth:`!fromstring` is renamed to :meth:`frombytes` for clarity. @@ -177,7 +180,7 @@ The module defines the following type: .. method:: fromunicode(s) - Extends this array with data from the given unicode string. + Extends this array with data from the given Unicode string. The array must have type code ``'u'`` or ``'w'``; otherwise a :exc:`ValueError` is raised. Use ``array.frombytes(unicodestring.encode(enc))`` to append Unicode data to an array of some other type. @@ -239,24 +242,27 @@ The module defines the following type: .. method:: tounicode() - Convert the array to a unicode string. The array must have a type ``'u'`` or ``'w'``; + Convert the array to a Unicode string. The array must have a type ``'u'`` or ``'w'``; otherwise a :exc:`ValueError` is raised. Use ``array.tobytes().decode(enc)`` to - obtain a unicode string from an array of some other type. + obtain a Unicode string from an array of some other type. -When an array object is printed or converted to a string, it is represented as -``array(typecode, initializer)``. The *initializer* is omitted if the array is -empty, otherwise it is a string if the *typecode* is ``'u'`` or ``'w'``, -otherwise it is a list of numbers. -The string is guaranteed to be able to be converted back to an +The string representation of array objects has the form +``array(typecode, initializer)``. +The *initializer* is omitted if the array is empty, otherwise it is +a Unicode string if the *typecode* is ``'u'`` or ``'w'``, otherwise it is +a list of numbers. +The string representation is guaranteed to be able to be converted back to an array with the same type and value using :func:`eval`, so long as the :class:`~array.array` class has been imported using ``from array import array``. +Variables ``inf`` and ``nan`` must also be defined if it contains +corresponding floating point values. Examples:: array('l') array('w', 'hello \u2641') array('l', [1, 2, 3, 4, 5]) - array('d', [1.0, 2.0, 3.14]) + array('d', [1.0, 2.0, 3.14, -inf, nan]) .. seealso:: _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
