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Joe Tsai <******@****.***> 1472512232 -0700

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Joe Tsai <******@****.***> 1472512232 -0700

  <profiles>
    <profile>
      <id>exists-basedir</id>
      <activation>
        <file>
          <exists>${basedir}/test.txt</exists>
        </file>
      </activation>
    </profile>
    <profile>
      <id>missing-basedir</id>
      <activation>
        <file>
          <missing>${basedir}/test.txt</missing>
        </file>
      </activation>
    </profile>

    <profile>

    <profile>
      <id>exists-project-version</id>
      <activation>
        <file>
          <exists>${project.version}/test.txt</exists>
        </file>
      </activation>
    </profile>
    <profile>
      <id>missing-project-version</id>
      <activation>
        <file>
          <missing>${project.version}/test.txt</missing>
        </file>
      </activation>
    </profile>

  </profiles>

{* ../../docs_src/stream_data/tutorial002_py310.py ln[23:27] hl[23] *}

### Simulate a File { #simulate-a-file }

In this example, we are simulating a file with `io.BytesIO`, which is a file-like object that lives only in memory, but lets us use the same interface.

For example, we can iterate over it to consume its contents, as we could with a file.

{* ../../docs_src/stream_data/tutorial002_py310.py ln[1:27] hl[3,12:13,25] *}

### Using your local FastAPI

If you create a Python file that imports and uses FastAPI, and run it with the Python from your local environment, it will use your cloned local FastAPI source code.

And if you update that local FastAPI source code when you run that Python file again, it will use the fresh version of FastAPI you just edited.

    TimeoutFuture<V> result = new TimeoutFuture<>(delegate);
    Fire<V> fire = new Fire<>(result);
    result.timer = scheduledExecutor.schedule(fire, time, unit);
    delegate.addListener(fire, directExecutor());
    return result;
  }

  /*
   * Memory visibility of these fields. There are two cases to consider.
   *
   * 1. visibility of the writes to these fields to Fire.run:
   *