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Python 3.5.0rc2

Release Date: Aug. 25, 2015

Python 3.5.0rc2

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

Python 3.5.0rc2 was released on August 25th, 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

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 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. There are also zip files containing the Windows build making it easy to redistribute Python as part of another software package.
  • 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 bfd6938e8072b768a277125837eb7aed 20055455 SIG
XZ compressed source tarball Source release 157b61e72b4421497f068aa53405b9e1 14841476 SIG
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 80560604d0cf345c2606edce066d1895 25558149 SIG
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later 22f792e573dab846584c01292be39e2e 23886997 SIG
Windows help file Windows 4e8a2b58a1af7c4e8c0fcf74daac3818 7648815 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 316e52fbe70c7aa82e0a5bea36d489e0 8443645 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 cb17639d68641757f46cabedaaa1efc4 29590648 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 245cd9d267202e840bd4ceb97d17380d 788064 SIG
Windows x86 embeddable zip file Windows 13fecb0a0e897108f3659076da62639c 7593943 SIG
Windows x86 executable installer Windows 696b60a9952762eeb552728c59f60a58 28586488 SIG
Windows x86 web-based installer Windows 31b22fec715a1bbd476a1bc27ade31fd 783680 SIG