The use of << to indicate an aliased mapping should be merged in to the current mapping isn’t part of the core Yaml spec, but it is part of the tag repository. The current Yaml library provided by Ruby – Psych – provides the dump and load methods which allow easy serialization and deserialization of … Read more
By default, Ansible overrides variables at the first level. If you want to be able to merge dictionaries, you have to change your ansible.cfg file and set : hash_behaviour=merge (the default value being replace). Note that the Ansible team does not recommend this. I guess this is a real dividing setting between users. A kind … Read more
This ticket suggests the current implementation correctly follows the spec: The “-”, “?” and “:” characters used to denote block collection entries are perceived by people to be part of the indentation. This is handled on a case-by-case basis by the relevant productions. On the same thread, there is also this code snippet (modified to … Read more
Short story about serialization After many years of hard work, Earth’s scientists developed a robot who can help them in daily work. But this robot had fewer features than the robots developed by the scientists from planet Mars. After a meeting between both planets’ scientists, it is decided that Mars will send their robots to … Read more
Psych is the new YAML parser which is presumably better but can’t merge hash keys. This should help http://pivotallabs.com/users/mkocher/blog/articles/1692-yaml-psych-and-ruby-1-9-2-p180-here-there-be-dragons
Took me a few hours of digging through PyYAML docs and tickets, but I eventually discovered this comment that lays out some proof-of-concept code for serializing an OrderedDict as a normal YAML map (but maintaining the order). e.g. applied to my original code, the solution looks something like: >>> import yaml >>> from collections import … Read more
oneOf is supported in OpenAPI version 3 (openapi: 3.0.0), but not in Swagger version 2 (swagger: ‘2.0’). PaymentMethod: oneOf: – $ref: ‘#/components/schemas/NewPaymentMethod’ – $ref: ‘#/components/schemas/ExistPaymentMethod’ GitHub issue ref: https://github.com/OAI/OpenAPI-Specification/issues/333 For a list of changes in OpenAPI 3.0 compared to 2.0, see: https://blog.readme.io/an-example-filled-guide-to-swagger-3-2/
On python < 3.7 (or cpython < 3.6), you cannot control the ordering of pairs in a standard dictionary. If you plan on performing arbitrary insertions often, my suggestion would be to use a list to store keys, and a dict to store values. mykeys = [‘Name’, ‘Age’, ‘Class’] mydict = {‘Name’: ‘Zara’, ‘Age’: 7, … Read more
We can’t really answer that without knowing a lot more. Just because you’re not currently dependent on any other projects, are you likely to interact with them at some point in the future? If so, what technologies do they prefer? At the BBC, we’ve had some projects “JSON-only”, only to find out that Java developers … Read more