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Python 3.5.0rc4

Release Date: Sept. 9, 2015

Python 3.5.0rc4

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

Python 3.5.0rc4 was released on September 9th, 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 441, improved Python zip application support
  • PEP 448, additional unpacking generalizations
  • PEP 461, "%-formatting" for bytes and bytearray objects
  • PEP 465, a new operator (@) for matrix multiplication
  • PEP 471, os.scandir(), a fast new directory traversal function
  • 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 485, math.isclose(), a function for testing approximate equality
  • PEP 486, making the Windows Python launcher aware of virtual environments
  • PEP 488, eliminating .pyo files
  • PEP 489, a new and improved mechanism for loading extension modules
  • PEP 492, coroutines with async and await syntax

The next release of Python 3.5 will be Python 3.5.0 final. There should be few (or no) changes to Python 3.5 between rc4 and final.

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 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 will download the needed software components at installation time.
  • Windows Users: There are redistributable zip files containing the Windows builds, making it easy to redistribute Python as part of another software package. Please see the documentation regarding Embedded Distribution for more information.
  • 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


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 3ebd84ed4b63558c0d4d3465b32801f8 20023346 SIG
XZ compressed source tarball Source release 8e9b1e72a9c880c20925a8ce9996ba69 14797608 SIG
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 4b009b0a0fb5779418eac01986542d06 25554026 SIG
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later a02811704c544481693a69964a7d4c08 23886926 SIG
Windows help file Windows ee1f038156988e7211bf060715244c5f 7651795 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 79d71dd1b26a14899ce64cb01184ef8f 7992760 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 267721925b5397f70db3c3b6efbd3928 29442264 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 eaaa249ef73c8386fa4c74a186a2286f 911664 SIG
Windows x86 embeddable zip file Windows 2eeff904e39f39fa85eaf9880da351c7 7196435 SIG
Windows x86 executable installer Windows 8f83355ad0e20185b020de40c6df5f54 28569488 SIG
Windows x86 web-based installer Windows b551371d60478b202ad2dc3eb9a2318e 886048 SIG