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Python 3.6.4

Release Date: 2017-12-19

Python 3.6.4 is the fourth 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

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".)
  • 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
Gzipped source tarball Source release 9de6494314ea199e3633211696735f65 22710891 SIG
XZ compressed source tarball Source release 1325134dd525b4a2c3272a1a0214dd54 16992824 SIG
Mac OS X 64-bit/32-bit installer Mac OS X for Mac OS X 10.6 and later 9fba50521dffa9238ce85ad640abaa92 27778156 SIG
Windows help file Windows 17cc49512c3a2b876f2ed8022e0afe92 8041937 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64, not Itanium processors d2fb546fd4b189146dbefeba85e7266b 7162335 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64, not Itanium processors bee5746dc6ece6ab49573a9f54b5d0a1 31684744 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64, not Itanium processors 21525b3d132ce15cae6ba96d74961b5a 1320128 SIG
Windows x86 embeddable zip file Windows 15802be75a6246070d85b87b3f43f83f 6400788 SIG
Windows x86 executable installer Windows 67e1a9bb336a5eca0efcd481c9f262a4 30653888 SIG
Windows x86 web-based installer Windows 6c8ff748c554559a385c986453df28ef 1294088 SIG

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