fix py37 compatibility

eendebakpt · eendebakpt · commit 69e38b1b79ec · 2022-07-11T16:47:13.000+02:00
diff --git a/qupulse/pulses/method_pulse_template.py b/qupulse/pulses/method_pulse_template.py
@@ -11,7 +11,7 @@
 
 
 import functools
-@functools.lru_cache
+@functools.lru_cache(maxsize=1024)
 def ExpressionScalarCache(value):
     return ExpressionScalar(value)
         
