clases/lib: Use modern exception syntax

Update older code to use modern exception handling syntax which
is the form accepted by python 3.

(From OE-Core rev: b010501cd089e649a68f683be0cf4d0aac90fbe3)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/cachedpath.py

@@ -125,7 +125,7 @@ class CachedPath(object):
             # Note that listdir and error are globals in this module due
             # to earlier import-*.
             names = os.listdir(top)
-        except error, err:
+        except error as err:
             if onerror is not None:
                 onerror(err)
             return
@@ -221,7 +221,7 @@ class CachedPath(object):
                 file = self.__realpath_rel(root, file[(len(root) - 1):], root, loop_cnt, assume_dir)
             else:
                 file = self.__realpath(file, root, loop_cnt, assume_dir)[0]
-        except OSError, e:
+        except OSError as e:
             if e.errno == errno.ELOOP:
                 # make ELOOP more readable; without catching it, there will
                 # be printed a backtrace with 100s of OSError exceptions

meta/lib/oe/patch.py

@@ -392,7 +392,7 @@ class UserResolver(Resolver):
         os.chdir(self.patchset.dir)
         try:
             self.patchset.Push(False)
-        except CmdError, v:
+        except CmdError as v:
             # Patch application failed
             patchcmd = self.patchset.Push(True, False, False)
 

meta/lib/oe/path.py

@@ -107,7 +107,7 @@ def remove(path, recurse=True):
     for name in glob.glob(path):
         try:
             os.unlink(name)
-        except OSError, exc:
+        except OSError as exc:
             if recurse and exc.errno == errno.EISDIR:
                 shutil.rmtree(name)
             elif exc.errno != errno.ENOENT:
@@ -119,7 +119,7 @@ def symlink(source, destination, force=False):
         if force:
             remove(destination)
         os.symlink(source, destination)
-    except OSError, e:
+    except OSError as e:
         if e.errno != errno.EEXIST or os.readlink(destination) != source:
             raise
 
@@ -247,7 +247,7 @@ def realpath(file, root, use_physdir = True, loop_cnt = 100, assume_dir = False)
             file = __realpath_rel(root, file[(len(root) - 1):], root, loop_cnt, assume_dir)
         else:
             file = __realpath(file, root, loop_cnt, assume_dir)[0]
-    except OSError, e:
+    except OSError as e:
         if e.errno == errno.ELOOP:
             # make ELOOP more readable; without catching it, there will
             # be printed a backtrace with 100s of OSError exceptions

meta/lib/oe/qa.py

@@ -106,6 +106,6 @@ class ELFFile:
             bb.note("%s %s %s" % (objdump, cmd, self.name))
             self.objdump_output[cmd] = bb.process.run([objdump, cmd, self.name], env=env, shell=False)[0]
             return self.objdump_output[cmd]
-        except Exception, e:
+        except Exception as e:
             bb.note("%s %s %s failed: %s" % (objdump, cmd, self.name, e))
             return ""

meta/lib/oe/types.py

@@ -92,7 +92,7 @@ def regex(value, regexflags=None):
 
     try:
         return re.compile(value, flagval)
-    except re.error, exc:
+    except re.error as exc:
         raise ValueError("Invalid regex value '%s': %s" %
                          (value, exc.args[0]))
 

meta/lib/oe/utils.py

@@ -1,7 +1,7 @@
 def read_file(filename):
     try:
         f = file( filename, "r" )
-    except IOError, reason:
+    except IOError as reason:
         return "" # WARNING: can't raise an error now because of the new RDEPENDS handling. This is a bit ugly. :M:
     else:
         return f.read().strip()