fix: Rename MYPY to TYPE_CHECKING (getsentry#1934)

* fix: Rename MYPY to TYPE_CHECKING

we have a lot of conditionals in our codebase that are supposed to
separate the code that mypy is supposed to see from the code that we
actually want to execute.

In the specific case of sentry_sdk.configure_scope, this means that
pyright does not handle with the overloads correctly because it only
recognizes TYPE_CHECKING as a special variable name, not MYPY.

Rename MYPY to TYPE_CHECKING so pyright typechecks configure_scope
correctly.

* reexport old alias

Author: untitaker

scripts/init_serverless_sdk.py

@@ -10,11 +10,11 @@
 import re
 
 import sentry_sdk
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 from sentry_sdk.utils import Dsn
 from sentry_sdk.integrations.aws_lambda import AwsLambdaIntegration
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
 
 

sentry_sdk/_compat.py

@@ -1,8 +1,8 @@
 import sys
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Optional
     from typing import Tuple
     from typing import Any

sentry_sdk/_functools.py

@@ -5,9 +5,9 @@
 
 from functools import partial
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
     from typing import Callable
 

sentry_sdk/_queue.py

@@ -16,9 +16,9 @@
 from collections import deque
 from time import time
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
 
 __all__ = ["EmptyError", "FullError", "Queue"]

sentry_sdk/_types.py

@@ -1,10 +1,14 @@
 try:
-    from typing import TYPE_CHECKING as MYPY
+    from typing import TYPE_CHECKING as TYPE_CHECKING
 except ImportError:
-    MYPY = False
+    TYPE_CHECKING = False
 
 
-if MYPY:
+# Re-exported for compat, since code out there in the wild might use this variable.
+MYPY = TYPE_CHECKING
+
+
+if TYPE_CHECKING:
     from types import TracebackType
     from typing import Any
     from typing import Callable

sentry_sdk/api.py

@@ -3,10 +3,10 @@
 from sentry_sdk.hub import Hub
 from sentry_sdk.scope import Scope
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 from sentry_sdk.tracing import NoOpSpan
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
     from typing import Dict
     from typing import Optional

sentry_sdk/attachments.py

@@ -1,10 +1,10 @@
 import os
 import mimetypes
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 from sentry_sdk.envelope import Item, PayloadRef
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Optional, Union, Callable
 
 

sentry_sdk/client.py

@@ -30,9 +30,9 @@
 from sentry_sdk.envelope import Envelope
 from sentry_sdk.profiler import setup_profiler
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
     from typing import Callable
     from typing import Dict
@@ -523,9 +523,9 @@ def __exit__(self, exc_type, exc_value, tb):
         self.close()
 
 
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     # Make mypy, PyCharm and other static analyzers think `get_options` is a
     # type to have nicer autocompletion for params.
     #

sentry_sdk/consts.py

@@ -1,6 +1,6 @@
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 
-if MYPY:
+if TYPE_CHECKING:
     import sentry_sdk
 
     from typing import Optional

sentry_sdk/envelope.py

@@ -3,11 +3,11 @@
 import mimetypes
 
 from sentry_sdk._compat import text_type, PY2
-from sentry_sdk._types import MYPY
+from sentry_sdk._types import TYPE_CHECKING
 from sentry_sdk.session import Session
 from sentry_sdk.utils import json_dumps, capture_internal_exceptions
 
-if MYPY:
+if TYPE_CHECKING:
     from typing import Any
     from typing import Optional
     from typing import Union