[Misc] Clean up python/sglang package structure (#35062)

python/sglang/lang/api.py

@@ -3,9 +3,9 @@
 import re
 from typing import Callable, List, Optional, Union
 
-from sglang.global_config import global_config
 from sglang.lang.backend.base_backend import BaseBackend
 from sglang.lang.choices import ChoicesSamplingMethod, token_length_normalized
+from sglang.lang.global_config import global_config
 from sglang.lang.ir import (
     SglExpr,
     SglExprList,

python/sglang/lang/backend/runtime_endpoint.py

@@ -8,10 +8,10 @@ from typing import Dict, List, Optional, Union
 import aiohttp
 import requests
 
-from sglang.global_config import global_config
 from sglang.lang.backend.base_backend import BaseBackend
 from sglang.lang.chat_template import get_chat_template, get_chat_template_by_model_path
 from sglang.lang.choices import ChoicesDecision, ChoicesSamplingMethod
+from sglang.lang.global_config import global_config
 from sglang.lang.interpreter import StreamExecutor
 from sglang.lang.ir import (
     REGEX_BOOL,

python/sglang/lang/global_config.py

@@ -0,0 +1,27 @@
+"""Global configuration for the frontend language API."""
+
+
+class GlobalConfig:
+    """Store mutable process-wide frontend settings."""
+
+    def __init__(self):
+        # Verbosity level
+        # 0: do not output anything
+        # 2: output final text after every run
+        self.verbosity = 0
+
+        # Default backend of the language
+        self.default_backend = None
+
+        # Output tokenization configs
+        self.skip_special_tokens_in_output = True
+        self.spaces_between_special_tokens_in_out = True
+
+        # Language frontend interpreter optimization configs
+        self.enable_precache_with_tracing = True
+        self.enable_parallel_encoding = True
+
+
+global_config = GlobalConfig()
+
+__all__ = ["GlobalConfig", "global_config"]

python/sglang/lang/interpreter.py

@@ -14,7 +14,7 @@ from typing import Any, Callable, Dict, List, Optional
 
 import tqdm
 
-from sglang.global_config import global_config
+from sglang.lang.global_config import global_config
 from sglang.lang.ir import (
     SglCommitLazy,
     SglConcateAndAppend,

python/sglang/lang/ir.py

@@ -5,8 +5,8 @@ import inspect
 import warnings
 from typing import List, Optional, Union
 
-from sglang.global_config import global_config
 from sglang.lang.choices import ChoicesSamplingMethod
+from sglang.lang.global_config import global_config
 
 REGEX_INT = r"[-+]?[0-9]+[ \n]*"
 REGEX_FLOAT = r"[-+]?[0-9]*\.?[0-9]+[ \n]*"