Use except Exception where Py2/3 disagrees

python/servo/bootstrap_commands.py

@@ -475,7 +475,7 @@ class MachCommands(CommandBase):
                                     if os.path.exists(crate_path):
                                         try:
                                             delete(crate_path)
-                                        except (FileNotFoundError, PermissionError):
+                                        except Exception:
                                             print(traceback.format_exc())
                                             print("Delete %s failed!" % crate_path)
                             else:

python/servo/build_commands.py

@@ -920,7 +920,7 @@ def package_gstreamer_dlls(env, servo_exe_dir, target, uwp):
     for gst_lib in gst_dlls:
         try:
             shutil.copy(path.join(gst_root, "bin", gst_lib), servo_exe_dir)
-        except FileNotFoundError:
+        except Exception:
             missing += [str(gst_lib)]
 
     for gst_lib in missing:
@@ -976,7 +976,7 @@ def package_gstreamer_dlls(env, servo_exe_dir, target, uwp):
     for gst_lib in gst_dlls:
         try:
             shutil.copy(path.join(gst_plugin_path, gst_lib), servo_exe_dir)
-        except FileNotFoundError:
+        except Exception:
             missing += [str(gst_lib)]
 
     for gst_lib in missing:

python/servo/command_base.py

@@ -537,7 +537,7 @@ class CommandBase(object):
         try:
             if check_gstreamer_lib():
                 return False
-        except (FileNotFoundError, WindowsError):
+        except Exception:
             # Some systems don't have pkg-config; we can't probe in this case
             # and must hope for the best
             return False