Fix linting E722: do not use bare except

_pytest/_code/code.py

@@ -250,7 +250,7 @@ class TracebackEntry(object):
             line = str(self.statement).lstrip()
         except KeyboardInterrupt:
             raise
-        except:
+        except:  # noqa
             line = "???"
         return "  File %r:%d in %s\n  %s\n" % (fn, self.lineno + 1, name, line)
 
@@ -478,12 +478,12 @@ class FormattedExcinfo(object):
             s = str(source.getstatement(len(source) - 1))
         except KeyboardInterrupt:
             raise
-        except:
+        except:  # noqa
             try:
                 s = str(source[-1])
             except KeyboardInterrupt:
                 raise
-            except:
+            except:  # noqa
                 return 0
         return 4 + (len(s) - len(s.lstrip()))
 

_pytest/_code/source.py

@@ -254,7 +254,7 @@ def findsource(obj):
         sourcelines, lineno = py.std.inspect.findsource(obj)
     except py.builtin._sysex:
         raise
-    except:
+    except:  # noqa
         return None, -1
     source = Source()
     source.lines = [line.rstrip() for line in sourcelines]