v2.0.0

2.0.0 (2022-09-26)

Enhancements

• Add helper exception if an async type is requested without being wrapped in Awaitable.
• Use mypyc to compile some parts of lagom for a speed boost. This is only available on some platforms. A non-compiled fallback is also built.

Bug Fixes

None

Backwards incompatible changes

• 3.6 is now no longer formally supported (though it may still work)
• The compiled classes are less tolerant of slightly incorrectly typed arguments

Benchmarking for compilation

Running the benchmarking on a Darwin-CPython-3.8-64bit.

001 is version 1.7.1 of lagom pre compilation.
002 is the newly compiled version.

---------------------------------------------------------------------------------------------- benchmark: 6 tests ----------------------------------------------------------------------------------------------
Name (time in us)                      Min                    Max                Mean              StdDev              Median                IQR            Outliers  OPS (Kops/s)            Rounds  Iterations
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_optimised (0002_baselin)      71.7450 (1.0)         971.7620 (1.65)      87.0807 (1.0)       20.9528 (1.0)       81.8410 (1.0)       5.2518 (1.0)     6107;9432       11.4836 (1.0)       87699           1
test_plain (0002_baselin)         128.2760 (1.79)        588.2040 (1.0)      154.0175 (1.77)      32.0413 (1.53)     144.8510 (1.77)      9.5982 (1.83)    1084;1869        6.4928 (0.57)      14475           1
test_magic (0002_baselin)         147.2380 (2.05)        598.4200 (1.02)     169.9302 (1.95)      36.6631 (1.75)     159.4025 (1.95)      8.2840 (1.58)      227;405        5.8848 (0.51)       2962           1
test_optimised (0001_baselin)     159.1330 (2.22)     19,492.6290 (33.14)    218.7509 (2.51)     238.4710 (11.38)    185.7110 (2.27)     40.6575 (7.74)     542;4813        4.5714 (0.40)      43520           1
test_plain (0001_baselin)         250.3910 (3.49)        780.7970 (1.33)     289.7597 (3.33)      52.2043 (2.49)     272.0675 (3.32)     18.1820 (3.46)     839;1469        3.4511 (0.30)       9416           1
test_magic (0001_baselin)         271.6470 (3.79)      1,122.6480 (1.91)     314.4931 (3.61)      65.8549 (3.14)     291.0765 (3.56)     24.0800 (4.59)      230;353        3.1797 (0.28)       2718           1
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Upgrade instructions

Python 3.6 is no longer supported so this upgrade will not be possible. This release of the code may still work
but this version and future releases will not be tested against 3.6.

For python 3.7 and above the core parts of the library are now compiled and published to pypi. The interface for this
new release is intended to be compatible with the 1.7.X version, but you should test before deploying to
production and report any bugs. The compiled version (and therefore performance improvements) is only available for
CPython, other python runtimes are supported through a pure python wheel.