Fixed syntax error and double use statement

This PR fixes a syntax error and a double use introduced, I think, in the recent exceptions merge
| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| Refs tickets  |
| License       | MIT
| Doc PR        |