Solving the issue with the QSPICE raw file extension.

The QSPICE and LTSPICE raw files are not compatible

PyLTSpice/sim/qspice_simulator.py

@@ -30,6 +30,8 @@
 class Qspice(Simulator):
     """Stores the simulator location and command line options and is responsible for generating netlists and running
     simulations."""
+    raw_extension = '.qraw'  # In QSPICE all traces have double precision. This means that qraw files are not compatible
+    # with LTSPICE
 
     """Searches on the any usual locations for a simulator"""
     if sys.platform == "linux":
@@ -105,9 +107,8 @@ def valid_switch(cls, switch, path='') -> list:
 
     @classmethod
     def run(cls, netlist_file, cmd_line_switches, timeout):
-        raw_file = Path(netlist_file).with_suffix('.raw').as_posix()
         log_file = Path(netlist_file).with_suffix('.log').as_posix()
-        cmd_run = cls.spice_exe + ['-o', log_file] + ['-r', raw_file] + [netlist_file] + cmd_line_switches
+        cmd_run = cls.spice_exe + ['-o', log_file] + [netlist_file] + cmd_line_switches
         # start execution
         return run_function(cmd_run, timeout=timeout)
 

PyLTSpice/sim/run_task.py

@@ -107,7 +107,7 @@ def run(self):
         if self.retcode == 0:
             # simulation successful
             self.print_info(_logger.info, "Simulation Successful. Time elapsed: %s" % sim_time)
-            self.raw_file = self.netlist_file.with_suffix('.raw')
+            self.raw_file = self.netlist_file.with_suffix(self.simulator.raw_extension)
 
             if self.raw_file.exists() and self.log_file.exists():
                 if self.callback:

PyLTSpice/sim/simulator.py

@@ -81,6 +81,7 @@ def run(cls, netlist_file, cmd_line_switches, timeout):
     """
     spice_exe = []
     process_name = ""
+    raw_extension = '.raw'
 
     @classmethod
     def create_from(cls, path_to_exe, process_name=None):