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Python 3.5.0rc1

Release Date: Aug. 11, 2015

Python 3.5.0rc1

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

Python 3.5.0rc1 was released on August 10th, 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 does not contain Python, but instead downloads just the needed software at installation time.
  • 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 7ef9c440b863dc19a4c9fed55c3e9093 20038557 SIG
XZ compressed source tarball Source release 984540f202abc9305435df321c91720c 14798596 SIG
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later b7176710e4adc4ae1291613ab229f24a 25554034 SIG
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later c3b4094b9cc6379e11e4d7b8712d36f4 23886955 SIG
Windows help file Windows 1f42a0409077ee8f45a5b5ecbcc1576b 7649585 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 c1f82466d4c9b47849cb95daefc590c9 8443625 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 7ccb8ff26829be09479dbda7f427fd7a 29588504 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 d47ecc6da662dda33a3e4bbc41812e0a 788088 SIG
Windows x86 embeddable zip file Windows 6e652786c13b87cbc00299a4a7e50a6d 7593792 SIG
Windows x86 executable installer Windows 7935a1d545e87ac777251a9934bb11d2 28588432 SIG
Windows x86 web-based installer Windows 623df1c5b517b2d9331a0babae30af73 783720 SIG