# Form Data { #form-data }

When you need to receive form fields instead of JSON, you can use `Form`.

/// info

To use forms, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install python-multipart
```

        rsession.setLocalRepositoryManager(system.newLocalRepositoryManager(rsession, localRepo));

        rsession.setTransferListener(Mockito.mock(TransferListener.class));
        rsession.setRepositoryListener(Mockito.mock(RepositoryListener.class));

        DefaultMavenExecutionRequest request = new DefaultMavenExecutionRequest();

true jar Does nothing. runtime false true false false false true org.apache.maven.plugin.coreit.ItMojo java per-lookup once-per-session org.apache.maven maven-plugin-api jar 2.0 org/apache/maven/plugin/coreit/ItMojo.class package org.apache.maven.plugin.coreit; public synchronized class ItMojo extends org.apache.maven.plugin.AbstractMojo { public void ItMojo(); public void execute(); } pom.xml 4.0.0 org.apache.maven.plugins maven-jar-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin...

### 关于 `__name__ == "__main__"`

`__name__ == "__main__"` 的主要目的是使用以下代码调用文件时执行一些代码：

<div class="termy">

```console
$ python myapp.py
```

</div>

而当其它文件导入它时并不会被调用，像这样：

```Python
from myapp import app
```

#### 更多细节

假设你的文件命名为 `myapp.py`。

如果你这样运行：

<div class="termy">

```console
$ python myapp.py
```

</div>

 * those classes explore numerous corner cases. The intent here is to confirm that everything is
 * wired up properly.
 *
 * @author Craig Berry
 */
@NullUnmarked
public final class HostSpecifierTest extends TestCase {

  private static final ImmutableList<String> GOOD_IPS =
      ImmutableList.of("1.2.3.4", "2001:db8::1", "[2001:db8::1]");

  private static final ImmutableList<String> BAD_IPS =

            RepositorySystem repositorySystem;
            try {
                repositorySystem = container.lookup(RepositorySystem.class);
            } catch (ComponentLookupException e) {
                throw new IllegalStateException("Unable to lookup " + RepositorySystem.class.getName());
            }

            if (mirrors) {
                repositorySystem.injectMirror(session, repositories);
            }

import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing search logs.
 */
public class SearchLogHelper {
    private static final Logger logger = LogManager.getLogger(SearchLogHelper.class);

    /**
     * Default constructor for SearchLogHelper.
     */
    public SearchLogHelper() {
        // Default constructor
    }

        final SearchLogService searchLogService = ComponentUtil.getComponent(SearchLogService.class);
        final JobLogService jobLogService = ComponentUtil.getComponent(JobLogService.class);
        final UserInfoService userInfoService = ComponentUtil.getComponent(UserInfoService.class);
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

 * </pre>
 */
public class Crawler {

    /**
     * Creates a new instance of Crawler.
     */
    public Crawler() {
        // Default constructor
    }

    /** Logger instance for this class. */
    private static final Logger logger = LogManager.getLogger(Crawler.class);

    /** Thread name for web and file system crawling process. */

<%@page pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<footer role="contentinfo">
	<div class="container text-center">
		<p class="text-muted">
			<la:message key="labels.footer.copyright" />
		</p>
	</div>