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Warning: Python 3.5.0 reached end-of-life on 2020-09-30. It is no longer supported and does not receive security updates. We recommend upgrading to the latest Python release.
Note: Python 3.5.0b2 has been superseded by Python 3.5.10.
Release date: June 1, 2015
Python 3.5.0b2
Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here.
Python 3.5.0b2 was released on May 31st, 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 so far 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. (However, there are a handful of features that weren't quite ready for Python 3.5.0 beta 2; these were granted exceptions to the freeze, and are scheduled to be added before beta 3.)
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.
Files
| Version | Operating system | Description | File size | GPG | MD5 checksum |
|---|---|---|---|---|---|
| Gzipped source tarball | Source release | 19.0 MB | SIG | 5b6436d16c899241 e5f671707277f69c |
|
| XZ compressed source tarball | Source release | 14.0 MB | SIG | ef12dce377003213 8d83f6159e7d5c3a |
|
| Mac OS X 32-bit i386/PPC installer | macOS | for Mac OS X 10.5 and later | 24.1 MB | SIG | 81800c76b56e043d be623e639ca2062f |
| Mac OS X 64-bit/32-bit installer | macOS | for Mac OS X 10.6 and later | 22.6 MB | SIG | 059b5bff7d3f4d3d 39aa9cafc127ac22 |
| Windows help file | Windows | 7.2 MB | SIG | 514e74c21c0cdbfd 5289d68dec631d5e |
|
| Windows x86 embeddable zip file | Windows | 6.7 MB | SIG | ec51b5cb09ab4d5a a9f852d880fe689a |
|
| Windows x86 executable installer | Windows | 26.7 MB | SIG | e3dcc1c990be9204 6e497777c906d3e8 |
|
| Windows x86 web-based installer | Windows | 868.5 KB | SIG | b5679902ff7913e0 fbcdfbe43193e306 |
|
| Windows x86-64 embeddable zip file | Windows | for AMD64/EM64T/x64 | 7.5 MB | SIG | cf9930e68f855ac8 31f24a89faa5a885 |
| Windows x86-64 executable installer | Windows | for AMD64/EM64T/x64 | 27.5 MB | SIG | d0d4fe0b670f3ec2 80b7bc0d9621af4b |
| Windows x86-64 web-based installer | Windows | for AMD64/EM64T/x64 | 894.6 KB | SIG | 72929c9dbcdd267f 1e052dd9f49e96d4 |