Replace bare excepts with except BaseException

Mostly I wanted to remove uses of `noqa`.

In Python 3 the two are the same.

src/_pytest/_code/code.py

@@ -277,7 +277,7 @@ class TracebackEntry:
             line = str(self.statement).lstrip()
         except KeyboardInterrupt:
             raise
-        except:  # noqa
+        except BaseException:
             line = "???"
         return "  File %r:%d in %s\n  %s\n" % (fn, self.lineno + 1, name, line)
 
@@ -667,12 +667,12 @@ class FormattedExcinfo:
             s = str(source.getstatement(len(source) - 1))
         except KeyboardInterrupt:
             raise
-        except:  # noqa
+        except BaseException:
             try:
                 s = str(source[-1])
             except KeyboardInterrupt:
                 raise
-            except:  # noqa
+            except BaseException:
                 return 0
         return 4 + (len(s) - len(s.lstrip()))
 

src/_pytest/main.py

@@ -206,7 +206,7 @@ def wrap_session(
                     )
             config.hook.pytest_keyboard_interrupt(excinfo=excinfo)
             session.exitstatus = exitstatus
-        except:  # noqa
+        except BaseException:
             session.exitstatus = ExitCode.INTERNAL_ERROR
             excinfo = _pytest._code.ExceptionInfo.from_current()
             try:

src/_pytest/python_api.py

@@ -123,7 +123,7 @@ class ApproxNumpy(ApproxBase):
         if not np.isscalar(actual):
             try:
                 actual = np.asarray(actual)
-            except:  # noqa
+            except BaseException:
                 raise TypeError("cannot compare '{}' to numpy.ndarray".format(actual))
 
         if not np.isscalar(actual) and actual.shape != self.expected.shape:

src/_pytest/runner.py

@@ -258,7 +258,7 @@ class CallInfo:
         precise_start = perf_counter()
         try:
             result = func()
-        except:  # noqa
+        except BaseException:
             excinfo = ExceptionInfo.from_current()
             if reraise is not None and excinfo.errisinstance(reraise):
                 raise

src/_pytest/unittest.py

@@ -151,7 +151,7 @@ class TestCaseFunction(Function):
                     fail("".join(values), pytrace=False)
                 except (fail.Exception, KeyboardInterrupt):
                     raise
-                except:  # noqa
+                except BaseException:
                     fail(
                         "ERROR: Unknown Incompatible Exception "
                         "representation:\n%r" % (rawexcinfo,),

testing/code/test_excinfo.py

@@ -239,7 +239,7 @@ class TestTraceback_f_g_h:
         def f(n: int) -> None:
             try:
                 do_stuff()
-            except:  # noqa
+            except BaseException:
                 reraise_me()
 
         excinfo = pytest.raises(RuntimeError, f, 8)
@@ -445,7 +445,7 @@ class TestFormattedExcinfo:
             exec(source.compile())
         except KeyboardInterrupt:
             raise
-        except:  # noqa
+        except BaseException:
             return _pytest._code.ExceptionInfo.from_current()
         assert 0, "did not raise"