* O item que o cliente está tentando acessar não existe.
* etc.

Nesses casos, você normalmente retornaria um **HTTP status code** próximo ao status code na faixa do status code **400** (do 400 ao 499).

Isso é bastante similar ao caso do HTTP status code 200 (do 200 ao 299). Esses "200" status codes significam que, de algum modo, houve sucesso na requisição.

Os status codes na faixa dos 400 significam que houve um erro por parte do cliente.

        action.validateFilePath(directFile.getAbsolutePath());
    }

    // ===================================================================================
    //                                                          Similar Prefix Tests
    //                                                          ========================

    @Test
    public void test_validateFilePath_similarPrefixDirectory() throws Exception {

 * resulting XML document is parsed, the parser API will return this text as the original literal
 * string {@code "Foo<Bar>"}.
 *
 * <p><b>Note:</b> This class is similar to {@link CharEscaper} but with one very important
 * difference. A CharEscaper can only process Java <a
 * href="http://en.wikipedia.org/wiki/UTF-16">UTF16</a> characters in isolation and may not cope

import jcifs.smb1.util.LogStream;

/**
 * This class uses a static {@link java.util.Properties} to act
 * as a cental repository for all jCIFS configuration properties. It cannot be
 * instantiated. Similar to <code>System</code> properties the namespace
 * is global therefore property names should be unique. Before use,
 * the <code>load</code> method should be called with the name of a

import jakarta.servlet.http.HttpServletResponse;

public class WebApiManagerTest extends UnitFessTestCase {

    @Test
    public void test_matches_withPathBasedImplementation() {
        // Test simple path-based matching
        WebApiManager manager = new TestWebApiManager("/api/v1");

        TestHttpServletRequest request = new TestHttpServletRequest();
        request.setRequestURI("/api/v1/search");

现在你知道需要修复它，用 `str(age)` 把 `age` 转成字符串：

{* ../../docs_src/python_types/tutorial004_py310.py hl[2] *}

## 声明类型 { #declaring-types }

你刚刚看到的是声明类型提示的主要位置：函数参数。

这也是你在 **FastAPI** 中使用它们的主要场景。

### 简单类型 { #simple-types }

你不仅可以声明 `str`，还可以声明所有标准的 Python 类型。

例如：

* `int`
* `float`
* `bool`
* `bytes`

{* ../../docs_src/python_types/tutorial005_py310.py hl[1] *}

		// However, for now, we only support using the short username.

		isDN := globalIAMSys.LDAPConfig.ParsesAsDN(targetUser)
		opts.claims[ldapUserN] = targetUser // simple username
		var lookupResult *xldap.DNSearchResult
		lookupResult, targetGroups, err = globalIAMSys.LDAPConfig.LookupUserDN(targetUser)
		if err != nil {
			// if not found, check if DN

	// binary's ModTime as release time:
	return getModTime(os.Args[0])
}

// IsDocker - returns if the environment minio is running in docker or
// not. The check is a simple file existence check.
//
// https://github.com/moby/moby/blob/master/daemon/initlayer/setup_unix.go
// https://github.com/containers/podman/blob/master/libpod/runtime.go
//
//	"/.dockerenv":        "file",

			s.start = 0
		}
		// Finally we can read some input. Make sure we don't get stuck with
		// a misbehaving Reader. Officially we don't need to do this, but let's
		// be extra careful: Scanner is for safe, simple jobs.
		for loop := 0; ; {
			n, err := s.r.Read(s.buf[s.end:len(s.buf)])
			if n < 0 || len(s.buf)-s.end < n {
				s.setErr(ErrBadReadCount)
				break
			}
			s.end += n
			if err != nil {

* The item the client was trying to access doesn't exist.
* etc.

In these cases, you would normally return an **HTTP status code** in the range of **400** (from 400 to 499).

This is similar to the 200 HTTP status codes (from 200 to 299). Those "200" status codes mean that somehow there was a "success" in the request.

The status codes in the 400 range mean that there was an error from the client.