func (e *NoGoError) Error() string {
	return "no buildable Go source files in " + e.Dir
}

// MultiplePackageError describes a directory containing
// multiple buildable Go source files for multiple packages.
type MultiplePackageError struct {
	Dir      string   // directory containing files
	Packages []string // package names found
	Files    []string // corresponding files: Files[i] declares package Packages[i]
}

        CFiles            []string   // .c source files
        CXXFiles          []string   // .cc, .cxx and .cpp source files
        MFiles            []string   // .m source files
        HFiles            []string   // .h, .hh, .hpp and .hxx source files
        FFiles            []string   // .f, .F, .for and .f90 Fortran source files
        SFiles            []string   // .s source files

	// create the dir
	return fs.MkdirAll(path, defaultPerm)
}

// WriteTempDir creates a temporary dir at `path`, writes `files` into it, and fsyncs all the files
// The keys of `files` represent file names. These names must not:
// - be empty
// - be a path that contains more than the base name of a file (e.g. foo/bar is invalid, as is /bar)
// - match `.` or `..` exactly
// - be longer than 255 characters

  public static boolean equal(File file1, File file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);
    if (file1 == file2 || file1.equals(file2)) {
      return true;
    }

    /*
     * Some operating systems may return zero as the length for files denoting system-dependent
     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */

  public static boolean equal(File file1, File file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);
    if (file1 == file2 || file1.equals(file2)) {
      return true;
    }

    /*
     * Some operating systems may return zero as the length for files denoting system-dependent
     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */

# Request Files

You can define files to be uploaded by the client using `File`.

!!! info
    To receive uploaded files, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

    E.g. `pip install python-multipart`.

    This is because uploaded files are sent as "form data".

## Import `File`

Import `File` and `UploadFile` from `fastapi`:

=== "Python 3.9+"

# Static Files

You can serve static files automatically from a directory using `StaticFiles`.

## Use `StaticFiles`

* Import `StaticFiles`.
* "Mount" a `StaticFiles()` instance in a specific path.

```Python hl_lines="2  6"
{!../../../docs_src/static_files/tutorial001.py!}
```

!!! note "Technical Details"
    You could also use `from starlette.staticfiles import StaticFiles`.

  <key for="graphml" id="d0" yfiles.type="resources"/>
  <key for="port" id="d1" yfiles.type="portgraphics"/>
  <key for="port" id="d2" yfiles.type="portgeometry"/>
  <key for="port" id="d3" yfiles.type="portuserdata"/>
  <key attr.name="url" attr.type="string" for="node" id="d4"/>
  <key attr.name="description" attr.type="string" for="node" id="d5"/>
  <key for="node" id="d6" yfiles.type="nodegraphics"/>

{!../../../docs_src/static_files/tutorial001.py!}
```

!!! note "기술적 세부사항"
    `from starlette.staticfiles import StaticFiles` 를 사용할 수도 있습니다.

    **FastAPI**는 단지 개발자인, 당신에게 편의를 제공하기 위해 `fastapi.static files` 와 동일한 `starlett.static files`를 제공합니다. 하지만 사실 이것은 Starlett에서 직접 온 것입니다.

### "마운팅" 이란

"마운팅"은 특정 경로에 완전히 "독립적인" 애플리케이션을 추가하는 것을 의미하는데, 그 후 모든 하위 경로에 대해서도 적용됩니다.

# Request Forms and Files

You can define files and form fields at the same time using `File` and `Form`.

!!! info
    To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

    E.g. `pip install python-multipart`.

## Import `File` and `Form`

=== "Python 3.9+"

    ```Python hl_lines="3"