Vtr flow script py rewrite

vtr_flow/scripts/python_libs/verilogtorouting/error.py

@@ -0,0 +1,32 @@
+class VtrError(Exception):
+    """
+    Base class for VTR related exceptions
+
+    Attributes:
+        msg -- An explanation of the error
+    """
+    def __init__(self, msg=""):
+        self.msg = msg
+
+class CommandError(VtrError):
+    """
+    Raised when an external command failed.
+
+    Attributes:
+        returncode -- The return code from the command
+        cmd == The command run
+    """
+    def __init__(self, msg, cmd, returncode, log=None):
+        super(CommandError, self).__init__(msg=msg)
+        self.returncode = returncode
+        self.cmd = cmd
+        self.log = log
+
+class InspectError(VtrError):
+    """
+    Raised when some query (inspection) result is not found.
+    """
+    def __init__(self, msg, filename=None):
+        super(InspectError, self).__init__(msg=msg)
+        self.filename=filename
+