Fix more lint errors

Signed-off-by: Min Lim <min.yeol.lim@intel.com>

Author: mlim19

gprofiler/profilers/php.py

@@ -162,7 +162,8 @@ def _dump(self) -> Optional[Path]:
             logger.error("phpspy process is not running")
             return None
         else:
-            self._process.send_signal(self.dump_signal)
+            if self._process is not None:
+                self._process.send_signal(self.dump_signal)
 
         # important to not grab the transient data file
         while True:

gprofiler/profilers/python_ebpf.py

@@ -284,7 +284,8 @@ def _dump(self) -> Optional[Path]:
             logger.error("PyPerf process is not running")
             return None
         else:
-            self.process.send_signal(self._DUMP_SIGNAL)
+            if self.process is not None:
+                self.process.send_signal(self._DUMP_SIGNAL)
 
         try:
             # important to not grab the transient data file - hence the following '.'
@@ -300,10 +301,14 @@ def _dump(self) -> Optional[Path]:
             process = self.process  # save it
             exit_status, stderr, stdout = self._terminate()
             assert exit_status is not None, "PyPerf didn't exit after _terminate()!"
-            assert isinstance(process.args, list) and all(
-                isinstance(s, str) for s in process.args
-            ), process.args  # mypy
-            raise PythonEbpfError(exit_status, process.args, stdout, stderr)
+            if process is not None:
+                assert isinstance(process.args, list) and all(
+                    isinstance(s, str) for s in process.args
+                ), process.args  # mypy
+                cmd_args: List[str] = list(process.args)  # type: ignore
+            else:
+                cmd_args: List[str] = []
+            raise PythonEbpfError(exit_status, cmd_args, stdout, stderr)
 
     def snapshot(self) -> ProcessToProfileData:
         # Add health check at the beginning