[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

mypy/build.py

@@ -3024,7 +3024,7 @@ def dump_graph(graph: Graph, stdout: TextIO | None = None) -> None:
             if state.path:
                 try:
                     size = os.path.getsize(state.path)
-                except os.error:
+                except OSError:
                     pass
             node.sizes[mod] = size
             for dep in state.dependencies:

mypy/main.py

@@ -33,7 +33,7 @@
 def stat_proxy(path: str) -> os.stat_result:
     try:
         st = orig_stat(path)
-    except os.error as err:
+    except OSError as err:
         print(f"stat({path!r}) -> {err}")
         raise
     else:

mypy/metastore.py

@@ -112,7 +112,7 @@ def write(self, name: str, data: str, mtime: float | None = None) -> bool:
             if mtime is not None:
                 os.utime(path, times=(mtime, mtime))
 
-        except os.error:
+        except OSError:
             return False
         return True
 

setup.py

@@ -8,10 +8,6 @@
 import sys
 from typing import TYPE_CHECKING, Any
 
-if sys.version_info < (3, 8, 0):
-    sys.stderr.write("ERROR: You need Python 3.8 or later to use mypy.\n")
-    exit(1)
-
 # we'll import stuff from the source tree, let's ensure is on the sys path
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)))