Deep copy. Throw deep Baby!

QGL/Compiler.py

@@ -20,7 +20,7 @@
 import os
 import operator
 from warnings import warn
-from copy import copy
+from copy import copy, deepcopy
 from functools import reduce
 from importlib import import_module
 import json
@@ -325,6 +325,7 @@ def compile_to_hardware(seqs,
     save_code(seqs, fileName + suffix)
 
     # all sequences should start with a WAIT for synchronization
+    seqs = deepcopy(seqs)
     for seq in seqs:
         if not isinstance(seq[0], ControlFlow.Wait):
             logger.debug("Adding a WAIT - first sequence element was %s", seq[0])

QGL/PulseSequencer.py

@@ -98,6 +98,12 @@ def __mul__(self, other):
         ptype = promote_type(self, other)
         return self.promote(ptype) * other.promote(ptype)
 
+    def __copy__(self):
+        return self
+
+    def __deepcopy__(self, memo):
+        return self
+
     def promote(self, ptype):
         # promote a Pulse to a PulseBlock
         return ptype(self)