Xuanwo commented on PR #4122:
URL: https://github.com/apache/opendal/pull/4122#issuecomment-1920807834

   clippy is the rust lint that help us write better code, for example:
   
   ```shell
   error: you seem to be trying to use `match` for destructuring a single 
pattern. Consider using `if let`
      --> bindings/python/src/file.rs:399:13
       |
   399 | /             match &mut *state {
   400 | |                 AsyncFileState::Writer(w) => {
   401 | |                     w.close()
   402 | |                         .await
   ...   |
   405 | |                 _ => {}
   406 | |             }
       | |_____________^
       |
       = help: for further information visit 
https://rust-lang.github.io/rust-clippy/master/index.html#single_match
   help: try
       |
   399 ~             if let AsyncFileState::Writer(w) = &mut *state {
   400 +                 w.close()
   401 +                     .await
   402 +                     .map_err(|err| 
PyIOError::new_err(err.to_string()))?;
   403 +             }
   ```


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