Python 3.4

Python 3.4 3.4.4

Python is a programming language that lets you work more quickly and integrate your systems more effectively.

Download for Windows

About Python 3.4

Python is a programming language that lets you work more quickly and integrate your systems more effectively.

What's new in 3.4.4

Windows

  • Issue #25844: Corrected =/== typo potentially leading to crash in launcher.

Full release notes »

Technical details

PublisherPython Software Foundation
Version3.4.4
Release date2015-12-20
LicensePSF-2.0
Installer typemsi
Architecturex86, x64
Package IDPython.Python.3.4

Install Python 3.4 from the command line

Install with Windows Package Manager
winget install --id=Python.Python.3.4 -e
Update to the latest version
winget upgrade --id=Python.Python.3.4 -e
Uninstall
winget uninstall --id=Python.Python.3.4 -e
Silent install with the offline installer
msiexec /i "python-3.4.4.amd64.msi" /quiet /norestart ADDLOCAL=ALL
Uninstall the MSI package
msiexec /x {56EBF7CF-F2B2-30ED-9DE5-307FC2CE3449} /quiet

Python 3.4 adds these commands to the command line: python, pythonw.

languageprogrammingprogramming-languagepythonpython3script

File types supported by Python 3.4

Python 3.4 can open or be associated with 5 file types:

.py.pyc.pyd.pyo.pyw

Python 3.4 version history

3.4.3 Feb 23, 2015
3.4.2 Oct 6, 2014
3.4.1 May 18, 2014

Core and Builtins
- Issue #21418: Fix a crash in the builtin function super() when called without argument and without current frame (ex: embedded Python).
- Issue #21425: Fix flushing of standard streams in the interactive interpreter.
- Issue #21435: In rare cases, when running finalizers on objects in cyclic trash a bad pointer dereference could occur due to a subtle flaw in internal iteration logic.
Library
- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial shape.
- Issue #20998: Fixed re.fullmatch() of repeated single character pattern with ignore case. Original patch by Matthew Barnett.
- Issue #21075: fileinput.FileInput now reads bytes from standard stream if binary mode is specified. Patch by Sam Kimbrel.
- Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a flush() on the underlying binary stream. Patch by akira.
- Issue #21470: Do a better job seeding the random number generator by using enough bytes to span the full state space of the Mersenne Twister.
- Issue #21398: Fix an unicode error in the pydoc pager when the documentation contains characters not encodable to the stdout encoding.
Tests
- Issue #17756: Fix test_code test when run from the installed location.
- Issue #17752: Fix distutils tests when run from the installed location.
IDLE
- Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin consolidating and improving human-validated tests of Idle. …

Other versions

  • 3.4.0

Frequently asked questions

Is Python 3.4 free?

Python 3.4 is psf-2.0 software from Python Software Foundation. Check the publisher's license terms for pricing and usage rights.

What is the latest version of Python 3.4?

The latest version is 3.4.4, released on Dec 20, 2015.

Is it safe to download Python 3.4?

The download button links to the official installer published on python.org, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with ace645d104bddd4f4ffbf453bedddaf2496e3609af3fa47173680d2f321d3709.

Which Windows versions does Python 3.4 support?

Python 3.4 runs on Windows and is available for 32-bit (x86), 64-bit (x64) systems.

How do I install Python 3.4 silently?

Run the offline installer with msiexec /i "python-3.4.4.amd64.msi" /quiet /norestart ADDLOCAL=ALL, or install it with Windows Package Manager: winget install --id=Python.Python.3.4 -e --silent.

How do I uninstall Python 3.4?

Open Settings › Apps › Installed apps, find Python 3.4 and select Uninstall. From the command line, run winget uninstall --id=Python.Python.3.4 -e.

What file types can Python 3.4 open?

Python 3.4 supports 5 file types, including .py, .pyc, .pyd, .pyo, .pyw.