ipython · haosenwang1018 · Feb 27, 2026
diff --git a/IPython/core/application.py b/IPython/core/application.py
@@ -260,7 +260,7 @@ def __init__(self, **kwargs):
         # ensure current working directory exists
         try:
             os.getcwd()
-        except:
+        except Exception:
             # exit if cwd doesn't exist
             self.log.error("Current working directory doesn't exist.")
             self.exit(1)

diff --git a/IPython/core/completer.py b/IPython/core/completer.py
@@ -2977,7 +2977,7 @@ def python_func_kw_matches(self, text):
             for namedArg in set(namedArgs) - usedNamedArgs:
                 if namedArg.startswith(text):
                     argMatches.append("%s=" %namedArg)
-        except:
+        except Exception:
             pass
 
         return argMatches

diff --git a/IPython/core/completerlib.py b/IPython/core/completerlib.py
@@ -182,7 +182,7 @@ def try_import(mod: str, only_modules=False) -> List[str]:
     mod = mod.rstrip('.')
     try:
         m = import_module(mod)
-    except:
+    except Exception:
         return []
 
     m_is_init = '__init__' in (getattr(m, '__file__', '') or '')

diff --git a/IPython/core/crashhandler.py b/IPython/core/crashhandler.py
@@ -191,7 +191,7 @@ def __call__(
         # and generate a complete report on disk
         try:
             report = open(report_name, "w", encoding="utf-8")
-        except:
+        except Exception:
             print('Could not create crash report on disk.', file=sys.stderr)
             return
 
@@ -220,7 +220,7 @@ def make_report(self, traceback: str) -> str:
             rpt_add("Application name: %s\n\n" % self.app.name)
             rpt_add("Current user configuration structure:\n\n")
             rpt_add(config)
-        except:
+        except Exception:
             pass
         rpt_add(sec_sep+'Crash traceback:\n\n' + traceback)
 

diff --git a/IPython/core/debugger.py b/IPython/core/debugger.py
@@ -882,7 +882,7 @@ def do_list(self, arg):
                         last = first + last
                 else:
                     first = max(1, int(x) - 5)
-            except:
+            except Exception:
                 print("*** Error in argument:", repr(arg), file=self.stdout)
                 return
         elif self.lineno is None or arg == ".":

diff --git a/IPython/core/debugger_backport.py b/IPython/core/debugger_backport.py
@@ -202,5 +202,5 @@ def default(self, line):  # type: ignore[no-untyped-def]
                 sys.stdout = save_stdout
                 sys.stdin = save_stdin
                 sys.displayhook = save_displayhook
-        except:
+        except Exception:
             self._error_exc()
diff --git a/IPython/core/doctb.py b/IPython/core/doctb.py
@@ -255,7 +255,7 @@ def format_exception(self, etype: Any, evalue: Any) -> Any:
         # Get (safely) a string form of the exception info
         try:
             etype_str, evalue_str = map(str, (etype, evalue))
-        except:
+        except Exception:
             # User exception is improperly defined.
             etype, evalue = str, sys.exc_info()[:2]
             etype_str, evalue_str = map(str, (etype, evalue))

diff --git a/IPython/core/formatters.py b/IPython/core/formatters.py
@@ -236,7 +236,7 @@ def format(self, obj, include=None, exclude=None):
             md = None
             try:
                 data = formatter(obj)
-            except:
+            except Exception:
                 # FIXME: log the exception
                 raise
 

diff --git a/IPython/core/interactiveshell.py b/IPython/core/interactiveshell.py
@@ -1618,7 +1618,7 @@ def push(self, variables, interactive=True):
             for name in vlist:
                 try:
                     vdict[name] = eval(name, cf.f_globals, cf.f_locals)
-                except:
+                except Exception:
                     print('Could not get variable %s from %s' %
                            (name,cf.f_code.co_name))
         else:
@@ -1777,7 +1777,7 @@ def _ofind(
                                 obj = obj[int(part)]
                             else:
                                 obj = getattr(obj, part)
-                    except:
+                    except Exception:
                         # Blanket except b/c some badly implemented objects
                         # allow __getattr__ to raise exceptions other than
                         # AttributeError, which then crashes IPython.
@@ -2071,7 +2071,7 @@ def wrapped(self,etype,value,tb,tb_offset=None):
                 try:
                     stb = handler(self,etype,value,tb,tb_offset=tb_offset)
                     return validate_stb(stb)
-                except:
+                except Exception:
                     # clear custom handler immediately
                     self.set_custom_exc((), None)
                     print("Custom TB Handler failed, unregistering", file=sys.stderr)
@@ -2273,7 +2273,7 @@ def showsyntaxerror(self, filename=None, running_compiled_code=False):
         if filename and issubclass(etype, SyntaxError):
             try:
                 value.filename = filename
-            except:
+            except Exception:
                 # Not the format we expect; leave it alone
                 pass
 
@@ -2906,7 +2906,7 @@ def user_expressions(self, expressions):
         for key, expr in expressions.items():
             try:
                 value = self._format_user_obj(eval(expr, global_ns, user_ns))
-            except:
+            except Exception:
                 value = self._user_obj_error()
             out[key] = value
         return out
@@ -2960,7 +2960,7 @@ def safe_execfile(self, fname, *where, exit_ignore=False, raise_exceptions=False
         try:
             with fname.open("rb"):
                 pass
-        except:
+        except Exception:
             warn('Could not open file <%s> for safe execution.' % fname)
             return
 
@@ -2990,7 +2990,7 @@ def safe_execfile(self, fname, *where, exit_ignore=False, raise_exceptions=False
                         raise
                     if not exit_ignore:
                         self.showtraceback(exception_only=True)
-            except:
+            except Exception:
                 if raise_exceptions:
                     raise
                 # tb offset is 2 because we wrap execfile
@@ -3018,7 +3018,7 @@ def safe_execfile_ipy(self, fname, shell_futures=False, raise_exceptions=False):
         try:
             with fname.open("rb"):
                 pass
-        except:
+        except Exception:
             warn('Could not open file <%s> for safe execution.' % fname)
             return
 
@@ -3048,7 +3048,7 @@ def get_cells():
                         result.raise_error()
                     elif not result.success:
                         break
-            except:
+            except Exception:
                 if raise_exceptions:
                     raise
                 self.showtraceback()
@@ -3078,7 +3078,7 @@ def safe_run_module(self, mod_name, where):
             except SystemExit as status:
                 if status.code:
                     raise
-        except:
+        except Exception:
             self.showtraceback()
             warn('Unknown failure executing module: <%s>' % mod_name)
 
@@ -3235,7 +3235,7 @@ def _run_cell(
                 result = ExecutionResult(info)
                 result.error_in_exec = e
                 self.showtraceback(running_compiled_code=True)
-            except:
+            except Exception:
                 pass
         return result
 
@@ -3482,7 +3482,7 @@ def _format_exception_for_storage(
             if filename and isinstance(evalue, SyntaxError):
                 try:
                     evalue.filename = filename
-                except:
+                except Exception:
                     pass  # Keep the original filename if modification fails
 
             # Extract traceback if the error happened during compiled code execution
@@ -3691,7 +3691,7 @@ def compare(code):
             if softspace(sys.stdout, 0):
                 print()
 
-        except:
+        except Exception:
             # It's possible to have exceptions raised here, typically by
             # compilation of odd code (such as a naked 'return' outside a
             # function) that did parse but isn't valid. Typically the exception
@@ -3763,7 +3763,7 @@ async def run_code(self, code_obj, result=None, *, async_=False):
             if result is not None:
                 result.error_in_exec = value
             self.CustomTB(etype, value, tb)
-        except:
+        except Exception:
             if result is not None:
                 result.error_in_exec = sys.exc_info()[1]
             self.showtraceback(running_compiled_code=True)

diff --git a/IPython/core/magics/basic.py b/IPython/core/magics/basic.py
@@ -369,7 +369,7 @@ def xmode_switch_err(name):
         try:
             shell.InteractiveTB.set_mode(mode=new_mode)
             print('Exception reporting mode:',shell.InteractiveTB.mode)
-        except:
+        except Exception:
             raise
             xmode_switch_err('user')
 

diff --git a/IPython/core/magics/code.py b/IPython/core/magics/code.py
@@ -528,7 +528,7 @@ class DataIsObject(Exception): pass
             last_call[0] = shell.displayhook.prompt_count
             if not opts_prev:
                 last_call[1] = args
-        except:
+        except Exception:
             pass
 
 

diff --git a/IPython/core/magics/execution.py b/IPython/core/magics/execution.py
@@ -116,7 +116,7 @@ def __str__(self):
             try:
                 "\xb1".encode(sys.stdout.encoding)
                 pm = "\xb1"
-            except:
+            except Exception:
                 pass
         return "{mean} {pm} {std} per loop (mean {pm} std. dev. of {runs} run{run_plural}, {loops:,} loop{loop_plural} each)".format(
             pm=pm,
@@ -1697,7 +1697,7 @@ def _format_time(timespan, precision=3):
         try:
             "μ".encode(sys.stdout.encoding)
             units = ["s", "ms", "μs", "ns"]
-        except:
+        except Exception:
             pass
     scaling = [1, 1e3, 1e6, 1e9]
 

diff --git a/IPython/core/magics/logging.py b/IPython/core/magics/logging.py
@@ -107,7 +107,7 @@ def logstart(self, parameter_s=''):
         if par:
             try:
                 logfname,logmode = par.split()
-            except:
+            except Exception:
                 logfname = par
                 logmode = 'backup'
         else:
@@ -125,7 +125,7 @@ def logstart(self, parameter_s=''):
         try:
             logger.logstart(logfname, loghead, logmode, log_output, timestamp,
                             log_raw_input)
-        except:
+        except Exception:
             self.shell.logfile = old_logfile
             warn("Couldn't start log: %s" % sys.exc_info()[1])
         else:

diff --git a/IPython/core/magics/namespace.py b/IPython/core/magics/namespace.py
@@ -239,7 +239,7 @@ def psearch(self, parameter_s=''):
         try:
             psearch(args,shell.ns_table,ns_search,
                     show_all=opt('a'),ignore_case=ignore_case, list_types=list_types)
-        except:
+        except Exception:
             shell.showtraceback()
 
     @skip_doctest
@@ -477,7 +477,7 @@ def type_name(v):
                 except UnicodeEncodeError:
                     vstr = var.encode(DEFAULT_ENCODING,
                                       'backslashreplace')
-                except:
+                except Exception:
                     vstr = "<object with id %d (str() failed)>" % id(var)
                 vstr = vstr.replace('\n', '\\n')
                 if len(vstr) < 50:

diff --git a/IPython/core/magics/osm.py b/IPython/core/magics/osm.py
@@ -544,7 +544,7 @@ def dhist(self, parameter_s=''):
         if parameter_s:
             try:
                 args = map(int,parameter_s.split())
-            except:
+            except Exception:
                 self.arg_err(self.dhist)
                 return
             if len(args) == 1:

diff --git a/IPython/core/magics/script.py b/IPython/core/magics/script.py
@@ -377,7 +377,7 @@ def kill_bg_processes(self):
             if p.returncode is None:
                 try:
                     p.send_signal(signal.SIGINT)
-                except:
+                except Exception:
                     pass
         time.sleep(0.1)
         self._gc_bg_processes()
@@ -387,7 +387,7 @@ def kill_bg_processes(self):
             if p.returncode is None:
                 try:
                     p.terminate()
-                except:
+                except Exception:
                     pass
         time.sleep(0.1)
         self._gc_bg_processes()
@@ -397,7 +397,7 @@ def kill_bg_processes(self):
             if p.returncode is None:
                 try:
                     p.kill()
-                except:
+                except Exception:
                     pass
         self._gc_bg_processes()
 

diff --git a/IPython/core/oinspect.py b/IPython/core/oinspect.py
@@ -425,7 +425,7 @@ def _getdef(self,obj,oname='') -> Union[str,None]:
             return None
         try:
             return _render_signature(signature(obj), oname)
-        except:
+        except Exception:
             return None
 
     def __head(self, h: str) -> str:
@@ -907,7 +907,7 @@ def info(self, obj, oname="", info=None, detail_level=0) -> InfoDict:
             if not callable(obj):
                 try:
                     ds = "Alias to the system command:\n  %s" % obj[1]
-                except:
+                except Exception:
                     ds = "Alias: " + str(obj)
             else:
                 ds = "Alias to " + str(obj)
@@ -937,7 +937,7 @@ def info(self, obj, oname="", info=None, detail_level=0) -> InfoDict:
         try:
             bclass = obj.__class__
             out['base_class'] = str(bclass)
-        except:
+        except Exception:
             pass
 
         # String form, but snip if too long in ? form (full in ??)
@@ -952,7 +952,7 @@ def info(self, obj, oname="", info=None, detail_level=0) -> InfoDict:
                         q.strip() for q in ostr.split("\n")
                     )
                 out["string_form"] = ostr
-            except:
+            except Exception:
                 pass
 
         if ospace:
@@ -1051,7 +1051,7 @@ def info(self, obj, oname="", info=None, detail_level=0) -> InfoDict:
             if ds:
                 try:
                     cls = getattr(obj,'__class__')
-                except:
+                except Exception:
                     class_ds = None
                 else:
                     class_ds = getdoc(cls)

diff --git a/IPython/core/page.py b/IPython/core/page.py
@@ -276,12 +276,12 @@ def page_file(fname, start=0, pager_cmd=None):
         if os.environ['TERM'] in ['emacs','dumb']:
             raise EnvironmentError
         system(pager_cmd + ' ' + fname)
-    except:
+    except Exception:
         try:
             if start > 0:
                 start -= 1
             page(open(fname, encoding="utf-8").read(), start)
-        except:
+        except Exception:
             print('Unable to show file',repr(fname))
 
 
@@ -298,7 +298,7 @@ def get_pager_cmd(pager_cmd=None):
     if pager_cmd is None:
         try:
             pager_cmd = os.environ['PAGER']
-        except:
+        except Exception:
             pager_cmd = default_pager_cmd
 
     if pager_cmd == 'less' and '-r' not in os.environ.get('LESS', '').lower():