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...bytearray type allows writable and data-locked requests as well. The element data type is always 'B' (i.e. unsigned byte). Constructors There are four forms of constructors, applicable to both bytes and bytearray: bytes(<bytes>), bytes(<bytearray>), bytearray(<bytes>), bytearray(<bytearray>): simple copying constructors, with the note that bytes(<bytes>) might return its (immutable) argument, but bytearray(<bytearray>) always makes a copy. bytes(<str>...
...bytearray whose first argument is the count, and whose second argument is the fill byte to use (defaults to \x00): >>> bytes.fromsize(3) b'\x00\x00\x00' >>> bytearray.fromsize(3) bytearray(b'\x00\x00\x00') >>> bytes.fromsize(5, b'\x0a') b'\x0a\x0a\x0a\x0a\x0a' >>> bytearray.fromsize(5, fill=b'\x0a') bytearray(b'\x0a\x0a\x0a\x0a\x0a') fromsize will behave just as the current constructors behave when passed a single integer, while allowing for non-zero fill va...
...bytearray PEP:461 Title:Adding % formatting to bytes and bytearray Author:Ethan Furman <ethan at stoneleaf.us> Status:Final Type:Standards Track Created:13-Jan-2014 Python-Version:3.5 Post-History:14-Jan-2014, 15-Jan-2014, 17-Jan-2014, 22-Feb-2014, 25-Mar-2014, 27-Mar-2014 Resolution:https://mail.python.org/pipermail/python-dev/2014-March/133621.html Contents Abstract Rationale Motivation Proposed semantics for bytes and bytearray formatting %-interpolation Compatibil...
...bytearray object (but the issue is conceptually the same with more sophisticated objects such as Numpy arrays). Like most objects, the bytearray object isn't immediately understood by the pickle module and must therefore specify its decomposition scheme. Here is how a bytearray object currently decomposes for pickling: >>> b.__reduce_ex__(4) (<class 'bytearray'>, (b'abc',), None) This is because the bytearray.__reduce_ex__ implementation reads morally as follows: class bytearra...
...bytearray objects. The proposed additions are: bytes % ... and bytearray % ... for percent-formatting, similar in syntax to percent-formatting on str objects (accepting a single object, a tuple or a dict). bytes.format(...) and bytearray.format(...) for a formatting similar in syntax to str.format() (accepting positional as well as keyword arguments). bytes.format_map(...) and bytearray.format_map(...) for an API similar to str.format_map(...), with the same formatting syntax and semantics as ...
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Released: Feb. 8, 2015
Python 3.5.0a1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0a1 was released on February 8th, 2015. Major new features of the 3.5 series, compared to 3.4 Python 3.5 is still in development, and 3.5.0a1 is the first alpha release. …
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Released: June 13, 2016
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