當你完成工作後，你可以**退出**虛擬環境。

<div class="termy">

```console
$ deactivate
```

</div>

這樣，當你執行 `python` 時它不會嘗試從已安裝套件的虛擬環境中執行。

## 開始工作 { #ready-to-work }

現在你已經準備好開始你的工作了。



/// tip

你想要理解上面的所有內容嗎？

繼續閱讀。👇🤓

///

## 為什麼要使用虛擬環境 { #why-virtual-environments }

当你完成工作后，你可以**退出**虚拟环境。

<div class="termy">

```console
$ deactivate
```

</div>

这样，当你运行 `python` 时，它不会尝试从那个虚拟环境及其已安装的软件包中运行。

## 开始工作 { #ready-to-work }

现在你已经准备好开始你的工作了。



/// tip | 提示

你想要理解上面的所有内容吗？

继续阅读。👇🤓

///

## 为什么要使用虚拟环境 { #why-virtual-environments }

If the capacity is zero or absent, the channel is unbuffered and communication
succeeds only when both a sender and receiver are ready. Otherwise, the channel
is buffered and communication succeeds without blocking if the buffer
is not full (sends) or not empty (receives).
A <code>nil</code> channel is never ready for communication.
</p>

<p>
A channel may be closed with the built-in function

     * It handles SSL/TLS configuration, authentication, and various FTP client settings.
     *
     * @param info The FTP information containing host, port, and other connection details
     * @return A configured FTP client ready for use
     * @throws IOException If the FTP client cannot be created or connected
     */
    protected FTPClient getClient(final FtpInfo info) throws IOException {
        FTPClient ftpClient = ftpClientQueue.poll();

            return value;
        }
        return request.getRemoteAddr();
    }

    /**
     * Gets a cached facet response for the given query.
     * Creates and caches the response if not already cached.
     *
     * @param query the search query
     * @return the facet response
     * @throws FessSystemException if facet data cannot be loaded
     */

			// Unknown sub-system found try to remove it anyways.
			delete(c, subSys)
			return nil
		}
		return err
	}

	ck, ok := c[subSys][tgt]
	if !ok {
		return Error[ErrConfigNotFound]("sub-system %s:%s already deleted or does not exist", subSys, tgt)
	}

	if len(inputs) == 2 {
		currKVS := ck.Clone()
		defKVS := DefaultKVS[subSys]
		for delKey := range strings.FieldsSeq(inputs[1]) {
			_, ok := currKVS.Lookup(delKey)

_2022-02-21_

 *  Fix: Don't include [Assertk][assertk] in OkHttp's production dependencies. This regression was
    introduced in the 5.0.0-alpha.4 release.
 *  Fix: Don't ask `Dns` implementations to resolve strings that are already IP addresses.
 *  Fix: Change fast fallback to race TCP handshakes only. To avoid wasted work, OkHttp will not
    attempt multiple TLS handshakes for the same call concurrently.

    SortedSet<String> set = of("e", "a", "f", "b", "d", "c");
    assertThat(set).containsExactly("a", "b", "c", "d", "e", "f").inOrder();
  }

  /*
   * Tests that we workaround GWT bug #3621 (or that it is already fixed).
   *
   * A call to of() with a parameter that is not a plain Object[] (here,
   * Interface[]) creates a RegularImmutableSortedSet backed by an array of that

	* Prints out status updates when running `kubefed init` ([#41849](https://github.com/kubernetes/kubernetes/pull/41849), [@perotinus](https://github.com/perotinus))

		}

		retryCount := g.retryCount
		for i := range retryCount {
			g.errs[index].Err = nil
			if err := f(); err != nil {
				g.errs[index].Err = err

				if contextCanceled(ctx) {
					// context already canceled no retries.
					retryCount = 0
				}

				// Last iteration log the error.
				if i == retryCount-1 {
					reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", addr.String())