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Python 3.5.0b3

Release Date: July 5, 2015

Python 3.5.0b3

Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here.

Python 3.5.0b3 was released on July 5th, 2015.

Major new features of the 3.5 series, compared to 3.4

Among the new major new features and changes in the 3.5 release series are

  • PEP 448, additional unpacking generalizations
  • PEP 461, adding support for "%-formatting" for bytes and bytearray objects
  • PEP 465, a new operator (@) for matrix multiplication
  • PEP 471, os.scandir(), a faster alternative to os.walk()
  • PEP 475, adding support for automatic retries of interrupted system calls
  • PEP 479, change StopIteration handling inside generators
  • PEP 484, the typing module, a new standard for type annotations
  • PEP 486, making the Windows Python launcher aware of virtual environments
  • PEP 488, eliminating .pyo files
  • PEP 489, multi-phase extension module initialization
  • PEP 492, coroutines with async and await syntax

Python 3.5 has now entered "feature freeze". By default new features may no longer be added to Python 3.5.

Notes on this release

  • The binaries for AMD64 will also work on processors that implement the Intel 64 architecture. (Also known as the "x64" architecture, and formerly known as both "EM64T" and "x86-64".) They will not work on Intel Itanium Processors (formerly "IA-64").
  • Windows users: If installing Python 3.5.0b1 as a non-privileged user, you may need to escalate to administrator privileges to install an update to your C runtime libraries.
  • Windows users: There are now "web-based" installers for Windows platforms; the installer does not contain Python, but instead downloads just the needed software at installation time.
  • Windows users: The Windows binaries were built with Microsoft Visual Studio 2015, which is not yet officially released. (It's currently offered in "Preview" mode, which is akin to a "beta".) It is our intention to ship Python 3.5 using VS2015, although right now VS2015's final release date is unclear.
  • OS X users: The OS X installers are now distributed as signed installer package files compatible with the OS X Gatekeeper security feature.
  • OS X users: There is important information about IDLE, Tkinter, and Tcl/Tk on Mac OS X here.

Full Changelog

Files

Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 69f4eb8e67027db291a714e9ec58336f 19.0 MB SIG
XZ compressed source tarball Source release 5d21f2a7aaf597b0e0a8b1f133db4ecd 14.1 MB SIG
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 4eb97f4ce446624ed98746e58296fad0 24.2 MB SIG
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later b6305f756c8b10426fe70147872c32d2 22.6 MB SIG
Windows help file Windows f953d35fc7dee224015364d8d273a2fc 7.3 MB SIG
Windows x86 embeddable zip file Windows b93dc190c307da3d3185f44806c42c09 7.2 MB SIG
Windows x86 executable installer Windows e86f35c6187ed5249cc0166b50b27fbd 27.2 MB SIG
Windows x86 web-based installer Windows 9fa51a2825086e55487885f75844d9fb 768.1 KB SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 84c7070dbe1db02d88d55273908cc4f9 8.0 MB SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 0f5140e89b2484696d45f40b27f6df87 28.2 MB SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 0094f59d6be39b8acbd3e1b91be48812 773.0 KB SIG