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Python 3.7.4

Release Date: July 8, 2019

Note

There are now newer maintenance releases of Python 3.7 that supersede 3.7.4 and Python 3.8 is now the latest feature release of Python 3.. Get the latest releases of 3.7.x and 3.8.x here.

Python 3.7.4 is the fourth maintenance release of Python 3.7. The Python 3.7 series contains many new features and optimizations.

Among the major new features in Python 3.7 are:

  • PEP 539, new C API for thread-local storage
  • PEP 545, Python documentation translations
  • New documentation translations: Japanese, French, and Korean.
  • PEP 552, Deterministic pyc files
  • PEP 553, Built-in breakpoint()
  • PEP 557, Data Classes
  • PEP 560, Core support for typing module and generic types
  • PEP 562, Customization of access to module attributes
  • PEP 563, Postponed evaluation of annotations
  • PEP 564, Time functions with nanosecond resolution
  • PEP 565, Improved DeprecationWarning handling
  • PEP 567, Context Variables
  • Avoiding the use of ASCII as a default text encoding (PEP 538, legacy C locale coercion and PEP 540, forced UTF-8 runtime mode)
  • The insertion-order preservation nature of dict objects is now an official part of the Python language spec.
  • Notable performance improvements in many areas.

Please see What’s New In Python 3.7 for more information.

More resources

Windows users

  • Changed in 3.7.4 OpenSSL has been updated from 1.1.0 to 1.1.1 and SQLite updated to 3.28.0.
  • 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".)
  • There are now "web-based" installers for Windows platforms; the installer will download the needed software components at installation time.
  • 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

  • Changed in 3.7.4 OpenSSL has been updated from 1.1.0 to 1.1.1 and SQLite updated to 3.28.0.
  • For Python 3.7.4, we provide two binary installer options for download. The default variant is 64-bit-only and works on macOS 10.9 (Mavericks) and later systems. Changed in 3.7.4 The 64-bit/32-bit variant that also works on very old versions of macOS, from 10.6 (Snow Leopard) on, is now deprecated and will no longer be provided in future releases; see the macOS installer ReadMe file for more info. Both variants come with batteries-included versions of Tcl/Tk 8.6 for users of IDLE and other tkinter-based GUI applications; third-party and system versions of Tcl/Tk are no longer used.
  • Both python.org installer variants include private copies of OpenSSL. Please carefully read the Important Information displayed during installation for information about SSL/TLS certificate validation and the Install Certificates.command.

Full Changelog

Files

Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 68111671e5b2db4aef7b9ab01bf0f9be 23017663 SIG
XZ compressed source tarball Source release d33e4aae66097051c2eca45ee3604803 17131432 SIG
macOS 64-bit/32-bit installer Mac OS X for Mac OS X 10.6 and later 6428b4fa7583daff1a442cba8cee08e6 34898416 SIG
macOS 64-bit installer Mac OS X for OS X 10.9 and later 5dd605c38217a45773bf5e4a936b241f 28082845 SIG
Windows help file Windows d63999573a2c06b2ac56cade6b4f7cd2 8131761 SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 9b00c8cf6d9ec0b9abe83184a40729a2 7504391 SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 a702b4b0ad76debdb3043a583e563400 26680368 SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 28cb1c608bbd73ae8e53a3bd351b4bd2 1362904 SIG
Windows x86 embeddable zip file Windows 9fab3b81f8841879fda94133574139d8 6741626 SIG
Windows x86 executable installer Windows 33cc602942a54446a3d6451476394789 25663848 SIG
Windows x86 web-based installer Windows 1b670cfa5d317df82c30983ea371d87c 1324608 SIG