Remove init context manager

MIGRATION_GUIDE.md

@@ -1,6 +1,5 @@
 # Sentry SDK Migration Guide
 
-
 ## Upgrading to 3.0
 
 Looking to upgrade from Sentry SDK 2.x to 3.x? Here's a comprehensive list of what's changed. Looking for a more digestible summary? See the [guide in the docs](https://docs.sentry.io/platforms/python/migration/2.x-to-3.x) with the most common migration patterns.
@@ -19,6 +18,7 @@ Looking to upgrade from Sentry SDK 2.x to 3.x? Here's a comprehensive list of wh
 - `sentry_sdk.continue_trace` no longer returns a `Transaction` and is now a context manager.
 - Redis integration: In Redis pipeline spans there is no `span["data"]["redis.commands"]` that contains a dict `{"count": 3, "first_ten": ["cmd1", "cmd2", ...]}` but instead `span["data"]["redis.commands.count"]` (containing `3`) and `span["data"]["redis.commands.first_ten"]` (containing `["cmd1", "cmd2", ...]`).
 - clickhouse-driver integration: The query is now available under the `db.query.text` span attribute (only if `send_default_pii` is `True`).
+- `sentry_sdk.init` now returns `None` instead of a context manager.
 
 ### Removed
 
@@ -40,7 +40,6 @@ Looking to upgrade from Sentry SDK 2.x to 3.x? Here's a comprehensive list of wh
 - `continue_from_headers`, `continue_from_environ` and `from_traceparent` have been removed, please use top-level API `sentry_sdk.continue_trace` instead.
 - `PropagationContext` constructor no longer takes a `dynamic_sampling_context` but takes a `baggage` object instead.
 
-
 ### Deprecated
 
 - `sentry_sdk.start_transaction` is deprecated. Use `sentry_sdk.start_span` instead.

sentry_sdk/_init_implementation.py

@@ -3,27 +3,11 @@
 import sentry_sdk
 
 if TYPE_CHECKING:
-    from typing import Any, ContextManager, Optional
+    from typing import Any, Optional
 
     import sentry_sdk.consts
 
 
-class _InitGuard:
-    def __init__(self, client):
-        # type: (sentry_sdk.Client) -> None
-        self._client = client
-
-    def __enter__(self):
-        # type: () -> _InitGuard
-        return self
-
-    def __exit__(self, exc_type, exc_value, tb):
-        # type: (Any, Any, Any) -> None
-        c = self._client
-        if c is not None:
-            c.close()
-
-
 def _check_python_deprecations():
     # type: () -> None
     # Since we're likely to deprecate Python versions in the future, I'm keeping
@@ -33,16 +17,14 @@ def _check_python_deprecations():
 
 
 def _init(*args, **kwargs):
-    # type: (*Optional[str], **Any) -> ContextManager[Any]
+    # type: (*Optional[str], **Any) -> None
     """Initializes the SDK and optionally integrations.
 
     This takes the same arguments as the client constructor.
     """
     client = sentry_sdk.Client(*args, **kwargs)
     sentry_sdk.get_global_scope().set_client(client)
     _check_python_deprecations()
-    rv = _InitGuard(client)
-    return rv
 
 
 if TYPE_CHECKING:
@@ -52,7 +34,7 @@ def _init(*args, **kwargs):
     # Use `ClientConstructor` to define the argument types of `init` and
     # `ContextManager[Any]` to tell static analyzers about the return type.
 
-    class init(sentry_sdk.consts.ClientConstructor, _InitGuard):  # noqa: N801
+    class init(sentry_sdk.consts.ClientConstructor):  # noqa: N801
         pass
 
 else: