* Fix installation on Windows with Python 3.7 - Require `psutil` version `5.4.6`, as `5.4.2` is incompatible with that environment.
23.1.6
* In the error message sent to a user trying to set a variable without specifying for which period, add an example for a variable defined for `ETERNITY`.
23.1.5
* Allow to set uncached variables when using a `memory_config` - Previously, trying to set variables listed in `variables_to_drop` of the `memory_config` had no effect. - Now this variables are still not cached, but they can be set by the user.
23.1.4
* Use C binding to load and dump Yaml (`CLoader` and `CDumper`) - For countries with several Yaml tests, they can take some time to run - Using the C bindings provided by `libyaml` adds a little performance boost
23.1.3
Fix test that was failing due to migration to HTTPS
23.1.2
- Minor technical improvement - Publish both Python 2 and Python 3 version on Pypi in CircleCI