For example, when you type `python` in the terminal, the operating system looks for a program called `python` in the **first directory** in that list.

If it finds it, then it will **use it**. Otherwise it keeps looking in the **other directories**.

### Installing Python and Updating the `PATH` { #installing-python-and-updating-the-path }

3. Set a convention in a constructor

Most properties should have a convention set, so (1) can be treated as a rare case where a value must be provided by a user.

With fast fallback, OkHttp attempts to connect to multiple web servers concurrently. It keeps whichever route connects first and cancels all of the others. Its rules are:

 * Prefer to alternate IP addresses from different address families, (IPv6 / IPv4), starting with IPv6.
 * Don't start a new attempt until 250 ms after the most recent attempt was started.
 * Keep whichever TCP connection succeeds first and cancel all the others.

Those two tasks are what **consume time the most**. That's the main work of maintaining FastAPI.

If you can help me with that, **you are helping me maintain FastAPI** and making sure it keeps **advancing faster and better**. 🚀

## Join the chat { #join-the-chat }

Join the 👥 [Discord chat server](https://discord.gg/VQjSZaeJmf) 👥 and hang out with others in the FastAPI community.

/// tip

        assertEquals(2, result.length);
        assertEquals(" spaced value ", result[0]);
        assertEquals("\"  another  \"", result[1]);

        // Tab characters - quoted value keeps quotes
        value = "tab\tvalue,\"quoted\ttab\"";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(2, result.length);
        assertEquals("tab\tvalue", result[0]);

- Do not add trailing punctuation to headings.

### Quotes

- Keep quote style consistent with the existing Korean docs.
- Never change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

- Keep ellipsis style consistent with existing Korean docs (often `...`).
- Never change `...` in code, URLs, or CLI examples.

### Preferred translations / glossary

- If you translate a concept one way, keep it consistent across all occurrences.

### Links and references

- Never modify link syntax like `{.internal-link target=_blank}`.
- Keep markdown link structure intact: `[text](url){.internal-link}`.

### Preferred translations / glossary

Do not translate technical terms like path, route, request, response, query, body, cookie, and header, keep them as is.

    }

    @Keep
    protected void protectedOneArg(String s) {
      checkNotNull(s);
    }

    @Keep
    public void oneNullableArg(@Nullable String s) {}

    @Keep
    public void oneNullableArgThrows(@Nullable String s) {
      doThrow(s);
    }

    @Keep
    public void twoArg(String s, Integer i) {
      checkNotNull(s);
      i.intValue();
    }

    @Keep

   * (IOException) e.getCause()} throws a {@link ClassCastException} that discards the original
   * exception {@code e} if the cause is not an {@link IOException}, but {@code
   * Throwables.getCauseAs(e, IOException.class)} keeps {@code e} as the {@link
   * ClassCastException}'s cause.
   *
   * @throws ClassCastException if the cause cannot be cast to the expected type. The {@code
   *     ClassCastException}'s cause is {@code throwable}.

### Quotes and punctuation

- Keep punctuation style consistent with existing Traditional Chinese docs (they often mix English terms like “FastAPI” with Chinese text).
- Never change punctuation inside inline code, code blocks, URLs, or file paths.
- For more details, please follow the [Chinese Copywriting Guidelines](https://github.com/sparanoid/chinese-copywriting-guidelines).

### Ellipsis