Python 3.3 Mac Download

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Sep 19, 2017.

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The download version of Python for Mac is 3.8.5. The software is periodically scanned by our antivirus system. We also encourage you to check the files with your own antivirus before launching the installation. The package you are about to download is authentic and was not repacked or modified in any way by us.

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Python 3.3.5

Python 3.3.5 release candidate 1 was released on February 23th, 2014. This releasefixes a regression with the zipimport functionality in 3.3.4 and several other bugs found in Python3.3.4.

This release fully supports OS X 10.9 Mavericks. In particular, this releasefixes an issue that could cause previous versions of Python to crash when typingin interactive mode on OS X 10.9.

Major new features of the 3.3 series, compared to 3.2

Python 3 for mac

Python 3.3 includes a range of improvements of the 3.x series, as well as easierporting between 2.x and 3.x.

  • PEP 380, syntax for delegating to a subgenerator (yield from)
  • PEP 393, flexible string representation (doing away with the distinctionbetween 'wide' and 'narrow' Unicode builds)
  • A C implementation of the 'decimal' module, with up to 120x speedupfor decimal-heavy applications
  • The import system (__import__) is based on importlib by default
  • The new 'lzma' module with LZMA/XZ support
  • PEP 397, a Python launcher for Windows
  • PEP 405, virtual environment support in core
  • PEP 420, namespace package support
  • PEP 3151, reworking the OS and IO exception hierarchy
  • PEP 3155, qualified name for classes and functions
  • PEP 409, suppressing exception context
  • PEP 414, explicit Unicode literals to help with porting
  • PEP 418, extended platform-independent clocks in the 'time' module
  • PEP 412, a new key-sharing dictionary implementation that significantlysaves memory for object-oriented code
  • PEP 362, the function-signature object
  • The new 'faulthandler' module that helps diagnosing crashes
  • The new 'unittest.mock' module
  • The new 'ipaddress' module
  • The 'sys.implementation' attribute
  • A policy framework for the email package, with a provisional (seePEP 411) policy that adds much improved unicode support for emailheader parsing
  • A 'collections.ChainMap' class for linking mappings to a single unit
  • Wrappers for many more POSIX functions in the 'os' and 'signal' modules, aswell as other useful functions such as 'sendfile()'
  • Hash randomization, introduced in earlier bugfix releases, is nowswitched on by default
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More resources

Free Download Python 3

  • Change log for this release.
  • Report bugs at http://bugs.python.org.
  • Help fund Python and its community.

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This is a preview release, and its use is not recommended in productionsettings.

We support these formats for download:

  • XZ compressed source tar ball (3.3.5rc1)(sig), ~ 11 MB
  • Gzipped source tar ball (3.3.5rc1)(sig), ~ 16 MB
  • Windows x86 MSI Installer (3.3.5rc1)(sig) and Visual Studio debug informationfiles(sig)
  • Windows X86-64 MSI Installer (3.3.5rc1)[1](sig) and Visual Studiodebug information files(sig)
  • Mac OS X 64-bit/32-bit Installer (3.3.5rc1) for Mac OS X 10.6 and later[2](sig).[You may need an updated Tcl/Tk install to run IDLE or use Tkinter,see note 2 for instructions.]

Mac Upgrade Python 3

The source tarballs are signed with Georg Brandl's key, which has a key id of36580288; the fingerprint is 26DE A9D4 6133 91EF 3E25 C9FF 0A5B 1018 36580288. The Windows installer was signed by Martin von Lรถwis' public key, whichhas a key id of 7D9DC8D2. The Mac installers were signed with Ned Deily's key,which has a key id of 6F5E1540. The public keys are located on the downloadpage.

MD5 checksums and sizes of the released files:

Python 3 For Mac

[1]The binaries for AMD64 will also work on processors that implement theIntel 64 architecture (formerly EM64T), i.e. the architecture thatMicrosoft calls x64, and AMD called x86-64 before calling it AMD64. Theywill not work on Intel Itanium Processors (formerly IA-64).

Python 3.0 Download

[2](1, 2) There is important information about IDLE, Tkinter, and Tcl/Tk on Mac OSX here.

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