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Odd behaviour of snake_case functions

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
tooling

Research direction

Start by locating the utils.snake_case and split_words implementations in the Python generator. Reproduce the examples from the issue, then verify that mixed snake_case and camelCase inputs produce the expected words and that the MODEL4dd cases remain one word; add or run the relevant utility tests if present.

Written by the indexing model from the issue text.

Description

🐞bug

Describe the bug
The names of apis are odd, having '_' in irregular and unpredictable places

To Reproduce
The following behavior can be observed using the snake_case function from utils:

utils.snake_case("get_v2_abc")
'get_v2_abc'
utils.snake_case("get_v2_abc_deFgHij")
'get_v_2_abc_de_fg_hij'

These would for example be created for paths: /v2/abc and /v2/abc/deFgHij

The results however inserts an additional underscore between v and 2, so v_2 instead of v2.

Expected behavior
results should be:
get_v2_abc_de_fg_hij

Desktop (please complete the following information):

  • OS: CentOS7
  • Python Version: 3.8
  • openapi-python-client version: github-master from today

Suggestion:
snake_case uses split_words function , which only splits on Aa, so a capital letter followed by a lowercase one, not on underscore. split_words should first split on underscore, then split on capital followed by lowercase. This would solve the issue of mixed snake and camelcase names.

Some additional odd outcomes:

>>> utils.snake_case("MODEL4dd")
'model4_dd'
>>> utils.snake_case("MODEl4dd")
'mod_el_4_dd'

These of course violate camelCase, but in my estimate should all be treated as one word, i.e. multiple consecutive capital letters are treated as a single block. So above model4dd would be the outcome in both cases.

Dominant language
Python
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Merged PRs (30d)
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