return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

现在在相同的project目录创建一个名为`Dockerfile`的文件:

```{ .dockerfile .annotate }
# (1)
FROM python:3.9

# (2)
WORKDIR /code

# (3)
COPY ./requirements.txt /code/requirements.txt

# (4)

/*
 * Copyright 2012-2024 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

    when (responseCode) {
      HttpURLConnection.HTTP_PROXY_AUTH -> {
        builder.addHeader("Proxy-Authenticate: Basic realm=\"protected area\"")
      }

      HttpURLConnection.HTTP_UNAUTHORIZED -> {
        builder.addHeader("WWW-Authenticate: Basic realm=\"protected area\"")
      }

      HttpURLConnection.HTTP_NO_CONTENT, HttpURLConnection.HTTP_RESET -> {

shell glob matching, relative path matching, and # negation (prefixed with !). Only one pattern per line. .DS_Store # Common VCS dirs .git/ .gitignore .bzr/ .bzrignore .hg/ .hgignore .svn/ # Common backup files *.swp *.bak *.tmp *~ # Various IDEs .project .idea/ *.tmproj # OWNERS file for Kubernetes OWNERS minio/README.md # MinIO Helm Chart [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![license](https://img.shields.io/badge/license-AGPL%20V3-blue)](https://github.com/mini...

max-width: 7rem;\n  padding: 0.5rem;\n}\n\n.product-image-thumb img {\n  max-width: 100%;\n  height: auto;\n  align-self: center;\n}\n\n.product-image-thumb:hover {\n  opacity: .5;\n}\n\n.product-share a {\n  margin-right: .5rem;\n}\n\n.projects td {\n  vertical-align: middle;\n}\n\n.projects .list-inline {\n  margin-bottom: 0;\n}\n\n.projects img.table-avatar,\n.projects .table-avatar img {\n  border-radius: 50%;\n  display: inline;\n  width: 2.5rem;\n}\n\n.projects .project-state {\n  text-align: cent...