Fix lint: format test_shm_abort.py and keep concore.hpp exception behavior

Author: Sahil-u07

concore.hpp

@@ -632,8 +632,14 @@ class Concore{
                 }
             }
 
-        catch(...){
-            cout<<"skipping +"<<outpath<<port<<" /"<<name;
+        catch (const std::exception &e) {
+            // Surface the error message and rethrow so callers (or the runtime)
+            // see the failure instead of silently proceeding with truncated data.
+            std::cerr << e.what() << std::endl;
+            throw;
+        } catch (...) {
+            // Unknown exception: rethrow to avoid silent suppression.
+            throw;
         }
     }
 
@@ -657,8 +663,11 @@ class Concore{
             }
             else throw 505;
         }
-        catch(...){
-            cout<<"skipping +"<<outpath<<port<<" /"<<name;
+        catch (const std::exception &e) {
+            std::cerr << e.what() << std::endl;
+            throw;
+        } catch (...) {
+            throw;
         }
     }
 

tests/test_shm_abort.py

@@ -31,7 +31,7 @@ def _compile_and_run(payload_size):
         binary_file = temp_path / "shm_abort_test"
         source_file.write_text(
             textwrap.dedent(
-                f'''
+                f"""
                 #include "concore.hpp"
                 #include <exception>
                 #include <string>
@@ -49,7 +49,7 @@ def _compile_and_run(payload_size):
                         return 1;
                     }}
                 }}
-                '''
+                """
             ).lstrip(),
             encoding="utf-8",
         )