fix time in unpickled log objects

src/kyupy/__init__.py

@@ -78,6 +78,7 @@ class Log:
     """A very simple logger that formats the messages with the number of seconds since
     program start.
     """
+
     def __init__(self):
         self.start = time.perf_counter()
         self.logfile = None
@@ -85,6 +86,13 @@ class Log:
         After each write, ``flush()`` is called as well.
         """
 
+    def __getstate__(self):
+        return {'elapsed': time.perf_counter() - self.start}
+
+    def __setstate__(self, state):
+        self.logfile = None
+        self.start = time.perf_counter() - state['elapsed']
+
     def log(self, level, message):
         t = time.perf_counter() - self.start
         if self.logfile is None:
@@ -120,7 +128,8 @@ class Log:
                 elapsed_time = current_time - start_time
                 total_time = elapsed_time / done
                 rem_time = total_time - elapsed_time
-                self.log(':', f'{done*100:.0f}% done {hr_time(elapsed_time)} elapsed {hr_time(rem_time)} remaining')
+                self.log(
+                    ':', f'{done*100:.0f}% done {hr_time(elapsed_time)} elapsed {hr_time(rem_time)} remaining')
                 log_interval = min(600, int(log_interval*1.5))
                 lastlog_time = current_time
 
@@ -167,8 +176,10 @@ class MockCuda:
                             for grid_y in range(grid_dim[1]):
                                 for block_x in range(block_dim[0]):
                                     for block_y in range(block_dim[1]):
-                                        outer.x = grid_x * block_dim[0] + block_x
-                                        outer.y = grid_y * block_dim[1] + block_y
+                                        outer.x = grid_x * \
+                                            block_dim[0] + block_x
+                                        outer.y = grid_y * \
+                                            block_dim[1] + block_y
                                         self.func(*args, **kwargs)
                     return inner
             return Launcher(func)