Should the filename be codecov.yml without the . in front?

It can be with or without:

Can I name the file .codecov.yml?

Yes. However, the file must still be located in the repository root, dev/, or .github/ directories

https://docs.codecov.com/docs/codecov-yaml#can-i-name-the-file-codecovyml

I find it a bit neater to hide these config files with dots, but can change if you like, and/or move to .github.

Checking an earlier commit in the new "web experience", it has a link to "view yml" with it shows this with comment: false:

https://app.codecov.io/gh/python/bedevere/commit/4c10bf25a59089a90e3df64f2b37ab41262d12c5

Checking this PR's commit, it now says comment: true:

https://app.codecov.io/gh/python/bedevere/commit/742296fa9dd4c2e4443c931266637fad67a5dbae

codecov:
  require_ci_to_pass: true
comment: true
coverage:
  precision: 2
  range:
  - 70.0
  - 100.0
  round: down
  status:
    changes: false
    default_rules:
      flag_coverage_not_uploaded_behavior: include
    patch: false
    project: false
github_checks:
  annotations: true

Ok sounds good, lets try to merge and see if it fixes things.

Tom from Codecov here. Just saw this PR and wanted to offer my help in case you ran into any issues.

Looking at the global yaml, I'd recommend changing to

comment: false
coverage:
  status:
    changes: false
    patch:
      default:
        informational: true
    project:
      default:
        informational: true

to get non-blocking status checks on PRs

Hi @thomasrockhu-codecov, thanks for the suggestion!
@hugovk, can you look into this and possibly open a new issue/PR so that it doesn't get forgotten?

@ezio-melotti Done! #441

@thomasrockhu-codecov Thanks, let's try it out!