```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

🔘, `open("./somefile.txt")` ✍ 🎚 👈 🤙 "🔑 👨‍💼".

🕐❔ `with` 🍫 🏁, ⚫️ ⚒ 💭 🔐 📁, 🚥 📤 ⚠.

🕐❔ 👆 ✍ 🔗 ⏮️ `yield`, **FastAPI** 🔜 🔘 🗜 ⚫️ 🔑 👨‍💼, & 🌀 ⚫️ ⏮️ 🎏 🔗 🧰.

For example you could have a file `main.py` with:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip

The second argument to <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> is the default value to return.

Je kunt bijvoorbeeld een bestand `main.py` hebben met:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip

	globalBucketMetadataSys *BucketMetadataSys
	globalBucketMonitor     *bandwidth.Monitor
	globalPolicySys         *PolicySys
	globalIAMSys            *IAMSys
	globalBytePoolCap       atomic.Pointer[bpool.BytePoolCap]

	globalLifecycleSys       *LifecycleSys
	globalBucketSSEConfigSys *BucketSSEConfigSys
	globalBucketTargetSys    *BucketTargetSys
	// globalAPIConfig controls S3 API requests throttling,

			errMsg = "The provided heal sequence path overlaps with an existing " +
				fmt.Sprintf("heal path: %s", k)
			return nil, errorCodes.ToAPIErr(ErrHealOverlappingPaths), errMsg
		}
	}

	// Add heal state and start sequence
	ahs.healSeqMap[hpath] = h

	clientToken := h.clientToken
	if globalIsDistErasure {
		clientToken = fmt.Sprintf("%s%s%d", h.clientToken, getKeySeparator(), GetProxyEndpointLocalIndex(globalProxyEndpoints))

```

& ⤴️ 👥 🤙:

```Python
user_dict = user_in.dict()
```

👥 🔜 ✔️ `dict` ⏮️ 💽 🔢 `user_dict` (⚫️ `dict` ↩️ Pydantic 🏷 🎚).

& 🚥 👥 🤙:

```Python
print(user_dict)
```

👥 🔜 🤚 🐍 `dict` ⏮️:

```Python
{
    'username': 'john',
    'password': 'secret',
    'email': '******@****.***',
    'full_name': None,
}
```

#### 🎁 `dict`

		value := "1"
		i := strings.IndexRune(name, '=')
		if i > 0 {
			name, value = name[:i], name[i+1:]
		}
		tokens := Tokenize(name)
		if len(tokens) != 1 || tokens[0].ScanToken != scanner.Ident {
			fmt.Fprintf(os.Stderr, "asm: parsing -D: %q is not a valid identifier name\n", tokens[0])
			flags.Usage()
		}
		macros[name] = &Macro{
			name:   name,
			args:   nil,
			tokens: Tokenize(value),
		}
	}
	return macros

     * represents is a named pipe.
     */
    int TYPE_NAMED_PIPE = 0x10;
    /**
     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <code>SmbFile</code>
     * represents is a printer.
     */
    int TYPE_PRINTER = 0x20;
    /**
     * Returned by {@link jcifs.SmbResource#getType()} if the resource this <code>SmbFile</code>
     * represents is a communications device.
     */

// The logic to sort by last octet is implemented to
// prefer CIDRs with higher octets, this in-turn skips the
// localhost/loopback address to be not preferred as the
// first ip on the list. Subsequently this list helps us print
// a user friendly message with appropriate values.
func sortIPs(ipList []string) []string {
	if len(ipList) == 1 {
		return ipList
	}

	var ipV4s []net.IP
	var nonIPs []string

 *
 * The first element on each line is a single hex code point (like 0041) or a hex code point range
 * (like 0030..0039).
 *
 * The second element on each line is a mapping type, like `valid` or `mapped`.
 *
 * For lines that contain a mapping target, the next thing is a sequence of hex code points (like
 * 0031 2044 0034).
 *
 * All other data is ignored.
 */