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Python 3.5.1

Warning: Python 3.5.1 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Note: Python 3.5.1 has been superseded by Python 3.5.10.

Release date: Dec. 7, 2015

Python 3.5.1

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

Python 3.5.1 was released on December 6th, 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

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 3.5.1 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

Files

macOS

Download Mac OS X 64-bit/32-bit installer

Windows

Download Python install manager

Source release

Download XZ compressed source tarball

Version Operating system Description File size GPG MD5 checksum
Gzipped source tarball Source release 19.2 MB SIG be78e48cdfc1a7ad90efff146dce6cfe
XZ compressed source tarball Source release 14.1 MB SIG e9ea6f2623fffcdd871b7b19113fde80
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 24.5 MB SIG c66bddc2a4a560496e68fb16600143a7
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later 22.9 MB SIG 1c41a4bd7e6644b8680fc2508cebf1ed
Windows help file Windows 7.4 MB SIG cc3e73cbe2d71920483923b731710391
Windows x86 embeddable zip file Windows 5.7 MB SIG 6e783d8fd44570315d488b9a9881ff10
Windows x86 executable installer Windows 27.4 MB SIG 4d6fdb5c3630cf60d457c9825f69b4d7
Windows x86 web-based installer Windows 915.7 KB SIG 6dfcc4012c96d84f0a83d00cfddf8bb8
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 6.5 MB SIG b07d15f515882452684e0551decad242
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 28.3 MB SIG 863782d22a521d8ea9f3cf41db1e484d
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 940.8 KB SIG 6a14ac8dfb70017c07b8f6cb622daa1a