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Python 3.7.7rc1

Release Date: March 4, 2020


Python 3.8 is now the latest feature release series of Python 3. Get the latest release of 3.8.x here. We plan to continue to provide bugfix releases for 3.7.x until mid 2020 and security fixes until mid 2023.

Python 3.7.7rc1 is the release candidate preview of the seventh and most recent maintenance release of Python 3.7. The Python 3.7 series contains many new features and optimizations.

Note that 3.7.7rc1 is a release preview and thus its use is not recommended for production environments.

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

More resources

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".)
  • 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

  • Please read the "Important Information" displayed during installation for information about SSL/TLS certificate validation and the running the "Install Certificates.command".
  • As of 3.7.7, we provide one installer: 64-bit-only that works on macOS 10.9 (Mavericks) and later systems. The deprecated 64-bit/32-bit installer variant for macOS 10.6 (Snow Leopard) is no longer provided.
  • As of 3.7.7, macOS installer packages are now compatible with the full Gatekeeper notarization requirements of macOS 10.15 Catalina including code signing.

Full Changelog


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 9fc893b17672bb221b87cff7354be1a5 22.1 MB SIG
XZ compressed source tarball Source release 60ccef34e9e11589bd002eb1c2c8effd 16.5 MB SIG
macOS 64-bit installer macOS for OS X 10.9 and later 967335ffb86c0c3f05ffb757bfbe407b 27.8 MB SIG
Windows help file Windows d0aaf75987074c8169545681ab81529d 7.8 MB SIG
Windows x86 embeddable zip file Windows 9589d956ace10d0086375f2f63702819 6.3 MB SIG
Windows x86 executable installer Windows 5d98aab7d580bb3c884b490a7c5abb7c 24.6 MB SIG
Windows x86 web-based installer Windows 04d0ee171a94209c398d1bb0b5bf1be7 1.3 MB SIG
Windows x86-64 embeddable zip file Windows for AMD64/EM64T/x64 ae3b2d59bcd7c97eeefe541d3745b7f6 7.1 MB SIG
Windows x86-64 executable installer Windows for AMD64/EM64T/x64 854c519014dc2b6e32d38c8b985ba441 25.6 MB SIG
Windows x86-64 web-based installer Windows for AMD64/EM64T/x64 b42683ea476f33fa1fe0389233498a3c 1.3 MB SIG