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Python 3.6.2rc2

Release Date: 2017-07-07

Python 3.6.2rc2 is a release candidate preview of the second maintenance release of Python 3.6. The Python 3.6 series contains many new features and optimizations. See the What’s New In Python 3.6 document for more information.

Major new features of the 3.6 series, compared to 3.5

Among the new major new features in Python 3.6 are:

  • PEP 468, Preserving Keyword Argument Order
  • PEP 487, Simpler customization of class creation
  • PEP 495, Local Time Disambiguation
  • PEP 498, Literal String Formatting
  • PEP 506, Adding A Secrets Module To The Standard Library
  • PEP 509, Add a private version to dict
  • PEP 515, Underscores in Numeric Literals
  • PEP 519, Adding a file system path protocol
  • PEP 520, Preserving Class Attribute Definition Order
  • PEP 523, Adding a frame evaluation API to CPython
  • PEP 524, Make os.urandom() blocking on Linux (during system startup)
  • PEP 525, Asynchronous Generators (provisional)
  • PEP 526, Syntax for Variable Annotations (provisional)
  • PEP 528, Change Windows console encoding to UTF-8
  • PEP 529, Change Windows filesystem encoding to UTF-8
  • PEP 530, Asynchronous Comprehensions

Note that 3.6.2rc2 is a preview release and thus its use is not recommended for production environments.

More resources

Notes on this release

  • Windows users: 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 3.6 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.
  • macOS users: If you are using the Python 3.6 from the python.org binary installer linked on this page, please carefully read the Important Information displayed during installation; this information is also available after installation by clicking on /Applications/Python 3.6/ReadMe.rtf. There is important information there about changes in the 3.6 installer-supplied Python, particularly with regard to SSL certificate validation.
  • macOS users: There is important information about IDLE, Tkinter, and Tcl/Tk on macOS here.

Full Changelog

Files

Version Operating System Description MD5 Sum File Size GPG
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XZ compressed source tarball Source release 9863675fe12e9d1721977f58713745db 16914248 SIG
Mac OS X 64-bit/32-bit installer Mac OS X for Mac OS X 10.6 and later 11bbb6fc6d8b7ab7e0ecdf73415520a0 27565109 SIG
Windows help file Windows cf275101056c8df669ab4cf7bc4619b6 8009909 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 0811925abb4584d7adb9e8be912199bc 7046800 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 65cf85c77ac10739a190ee9047a8973a 31431176 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 d459e3c3f7c6f63dea1de90c50975ee3 1312872 SIG
Windows x86 embeddable zip file Windows eb2b02281e64cf2ba68725688e1fd87a 6317694 SIG
Windows x86 executable installer Windows c64e7c09d801ccc2e19a7ead942048be 30496448 SIG
Windows x86 web-based installer Windows e7b616017d66b982ce0989aef54f91a5 1287424 SIG