diff --git a/sqlmap.py b/sqlmap.py
index 2b3c126fb..5f5621fb7 100755
--- a/sqlmap.py
+++ b/sqlmap.py
@@ -117,17 +117,17 @@ def checkEnvironment():
     try:
         os.path.isdir(modulePath())
     except UnicodeEncodeError:
-        errMsg = "your system does not properly handle non-ASCII paths. "
-        errMsg += "Please move the sqlmap's directory to the other location"
-        logger.critical(errMsg)
+        Uni_errMsg = '''your system does not properly handle non-ASCII paths. \n
+                    Please move the sqlmap's directory to the other location'''
+        logger.critical(Uni_errMsg)
         raise SystemExit
 
     if LooseVersion(VERSION) < LooseVersion("1.0"):
-        errMsg = "your runtime environment (e.g. PYTHONPATH) is "
-        errMsg += "broken. Please make sure that you are not running "
-        errMsg += "newer versions of sqlmap with runtime scripts for older "
-        errMsg += "versions"
-        logger.critical(errMsg)
+        Loose_errMsg = '''your runtime environment (e.g. PYTHONPATH) is \n"
+                    broken. Please make sure that you are not running \n"
+                    newer versions of sqlmap with runtime scripts for older \n"
+                    versions'''
+        logger.critical(Loose_errMsg)
         raise SystemExit
 
     # Patch for pip (import) environment
@@ -211,8 +211,8 @@ def main():
                                     crawl(target)
                                 except Exception as ex:
                                     if target and not isinstance(ex, SqlmapUserQuitException):
-                                        errMsg = "problem occurred while crawling '%s' ('%s')" % (target, getSafeExString(ex))
-                                        logger.error(errMsg)
+                                        Quit_errMsg = "problem occurred while crawling '%s' ('%s')" % (target, getSafeExString(ex))
+                                        logger.error(Quit_errMsg)
                                     else:
                                         raise
                                 else:
@@ -224,16 +224,16 @@ def main():
                         os._exitcode = 1
 
                         if "can't start new thread" in getSafeExString(ex):
-                            errMsg = "unable to start new threads. Please check OS (u)limits"
-                            logger.critical(errMsg)
+                            thread_errMsg = "unable to start new threads. Please check OS (u)limits"
+                            logger.critical(thread_errMsg)
                             raise SystemExit
                         else:
                             raise
 
     except SqlmapUserQuitException:
         if not conf.batch:
-            errMsg = "user quit"
-            logger.error(errMsg)
+            user_errMsg = "user quit"
+            logger.error(user_errMsg)
 
     except (SqlmapSilentQuitException, bdb.BdbQuit):
         pass
@@ -242,8 +242,8 @@ def main():
         cmdLineOptions.sqlmapShell = False
 
     except SqlmapBaseException as ex:
-        errMsg = getSafeExString(ex)
-        logger.critical(errMsg)
+        base_errMsg = getSafeExString(ex)
+        logger.critical(base_errMsg)
 
         os._exitcode = 1
 
@@ -258,182 +258,184 @@ def main():
     except EOFError:
         print()
 
-        errMsg = "exit"
-        logger.error(errMsg)
+        exit_errMsg = "exit"
+        logger.error(exit_errMsg)
 
     except SystemExit as ex:
         os._exitcode = ex.code or 0
 
-    except:
-        print()
-        errMsg = unhandledExceptionMessage()
+    except Exception as e:
+        print(e)
+        Exception_errmsg = unhandledExceptionMessage()
         excMsg = traceback.format_exc()
         valid = checkIntegrity()
 
         os._exitcode = 255
 
         if any(_ in excMsg for _ in ("MemoryError", "Cannot allocate memory")):
-            errMsg = "memory exhaustion detected"
-            logger.critical(errMsg)
+            mem_errMsg = "memory exhaustion detected"
+            logger.critical(mem_errMsg)
             raise SystemExit
 
         elif any(_ in excMsg for _ in ("No space left", "Disk quota exceeded", "Disk full while accessing")):
-            errMsg = "no space left on output device"
-            logger.critical(errMsg)
+            no_space_errMsg = "no space left on output device"
+            logger.critical(no_space_errMsg)
             raise SystemExit
 
         elif any(_ in excMsg for _ in ("The paging file is too small",)):
-            errMsg = "no space left for paging file"
-            logger.critical(errMsg)
+            page_small_errMsg = "no space left for paging file"
+            logger.critical(page_small_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("Access is denied", "subprocess", "metasploit")):
-            errMsg = "permission error occurred while running Metasploit"
-            logger.critical(errMsg)
+            no_root_errMsg = "permission error occurred while running Metasploit"
+            logger.critical(no_root_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("Permission denied", "metasploit")):
-            errMsg = "permission error occurred while using Metasploit"
-            logger.critical(errMsg)
+            permissions_errMsg = "permission error occurred while using Metasploit"
+            logger.critical(permissions_errMsg)
             raise SystemExit
 
         elif "Read-only file system" in excMsg:
-            errMsg = "output device is mounted as read-only"
-            logger.critical(errMsg)
+            RO_errMsg = "output device is mounted as read-only"
+            logger.critical(RO_errMsg)
             raise SystemExit
 
         elif "Insufficient system resources" in excMsg:
-            errMsg = "resource exhaustion detected"
-            logger.critical(errMsg)
+            no_ram_errMsg = "resource exhaustion detected"
+            logger.critical(no_ram_errMsg)
             raise SystemExit
 
         elif "OperationalError: disk I/O error" in excMsg:
-            errMsg = "I/O error on output device"
-            logger.critical(errMsg)
+            IO_errMsg = "I/O error on output device"
+            logger.critical(IO_errMsg)
             raise SystemExit
 
         elif "Violation of BIDI" in excMsg:
-            errMsg = "invalid URL (violation of Bidi IDNA rule - RFC 5893)"
-            logger.critical(errMsg)
+            BIDI_errMsg = "invalid URL (violation of Bidi IDNA rule - RFC 5893)"
+            logger.critical(BIDI_errMsg)
             raise SystemExit
 
         elif "Invalid IPv6 URL" in excMsg:
-            errMsg = "invalid URL ('%s')" % excMsg.strip().split('\n')[-1]
-            logger.critical(errMsg)
+            bad_IPv6_errMsg = "invalid URL ('%s')" % excMsg.strip().split('\n')[-1]
+            logger.critical(bad_IPv6_errMsg)
             raise SystemExit
 
         elif "_mkstemp_inner" in excMsg:
-            errMsg = "there has been a problem while accessing temporary files"
-            logger.critical(errMsg)
+            tmp_errMsg = "there has been a problem while accessing temporary files"
+            logger.critical(tmp_errMsg)
             raise SystemExit
 
         elif any(_ in excMsg for _ in ("tempfile.mkdtemp", "tempfile.mkstemp", "tempfile.py")):
-            errMsg = "unable to write to the temporary directory '%s'. " % tempfile.gettempdir()
-            errMsg += "Please make sure that your disk is not full and "
-            errMsg += "that you have sufficient write permissions to "
-            errMsg += "create temporary files and/or directories"
-            logger.critical(errMsg)
+            temp_write_errMsg = '''unable to write to the temporary directory '%s'. " % tempfile.gettempdir() \n
+                                Please make sure that your disk is not full and \n
+                                that you have sufficient write permissions to \n
+                                create temporary files and/or directories'''
+            logger.critical(temp_write_errMsg)
             raise SystemExit
 
         elif "Permission denied: '" in excMsg:
             match = re.search(r"Permission denied: '([^']*)", excMsg)
-            errMsg = "permission error occurred while accessing file '%s'" % match.group(1)
-            logger.critical(errMsg)
+            denied_errMsg = "permission error occurred while accessing file '%s'" % match.group(1)
+            logger.critical(denied_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("twophase", "sqlalchemy")):
-            errMsg = "please update the 'sqlalchemy' package (>= 1.1.11) "
-            errMsg += "(Reference: 'https://qiita.com/tkprof/items/7d7b2d00df9c5f16fffe')"
-            logger.critical(errMsg)
+            update_errMsg = '''please update the 'sqlalchemy' package (>= 1.1.11) \n
+                            (Reference: 'https://qiita.com/tkprof/items/7d7b2d00df9c5f16fffe')'''
+            logger.critical(update_errMsg)
             raise SystemExit
 
         elif "invalid maximum character passed to PyUnicode_New" in excMsg and re.search(r"\A3\.[34]", sys.version) is not None:
-            errMsg = "please upgrade the Python version (>= 3.5) "
-            errMsg += "(Reference: 'https://bugs.python.org/issue18183')"
-            logger.critical(errMsg)
+            py_version_errMsg = '''please upgrade the Python version (>= 3.5) \n
+                                (Reference: 'https://bugs.python.org/issue18183')'''
+            logger.critical(py_version_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("scramble_caching_sha2", "TypeError")):
-            errMsg = "please downgrade the 'PyMySQL' package (=< 0.8.1) "
-            errMsg += "(Reference: 'https://github.com/PyMySQL/PyMySQL/issues/700')"
-            logger.critical(errMsg)
+            PyMySQL_errMsg = '''please downgrade the 'PyMySQL' package (=< 0.8.1) \n
+                        (Reference: 'https://github.com/PyMySQL/PyMySQL/issues/700')'''
+            logger.critical(PyMySQL_errMsg)
             raise SystemExit
 
         elif "must be pinned buffer, not bytearray" in excMsg:
-            errMsg = "error occurred at Python interpreter which "
-            errMsg += "is fixed in 2.7. Please update accordingly "
-            errMsg += "(Reference: 'https://bugs.python.org/issue8104')"
-            logger.critical(errMsg)
+            buffer_pin_errMsg = '''error occurred at Python interpreter which \n
+                                is fixed in 2.7. Please update accordingly \n
+                                (Reference: 'https://bugs.python.org/issue8104')'''
+            logger.critical(buffer_pin_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("OSError: [Errno 22] Invalid argument: '", "importlib")):
-            errMsg = "unable to read file '%s'" % extractRegexResult(r"OSError: \[Errno 22\] Invalid argument: '(?P<result>[^']+)", excMsg)
-            logger.critical(errMsg)
+            importlib_errMsg = "unable to read file '%s'" % extractRegexResult(r"OSError: \[Errno 22\] Invalid argument: '(?P<result>[^']+)", excMsg)
+            logger.critical(importlib_errMsg)
             raise SystemExit
 
         elif "hash_randomization" in excMsg:
-            errMsg = "error occurred at Python interpreter which "
-            errMsg += "is fixed in 2.7.3. Please update accordingly "
-            errMsg += "(Reference: 'https://docs.python.org/2/library/sys.html')"
-            logger.critical(errMsg)
+            hash_random_errMsg = '''error occurred at Python interpreter which \n
+                                is fixed in 2.7.3. Please update accordingly \n
+                                (Reference: 'https://docs.python.org/2/library/sys.html')'''
+            logger.critical(hash_random_errMsg)
             raise SystemExit
 
         elif "AttributeError: unable to access item" in excMsg and re.search(r"3\.11\.\d+a", sys.version):
-            errMsg = "there is a known issue when sqlmap is run with ALPHA versions of Python 3.11. "
-            errMsg += "Please downgrade to some stable Python version"
-            logger.critical(errMsg)
+            alpha_errMsg = '''there is a known issue when sqlmap is run with ALPHA versions of Python 3.11. \n
+                            Please downgrade to some stable Python version.'''
+            logger.critical(alpha_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("Resource temporarily unavailable", "os.fork()", "dictionaryAttack")):
-            errMsg = "there has been a problem while running the multiprocessing hash cracking. "
-            errMsg += "Please rerun with option '--threads=1'"
-            logger.critical(errMsg)
+            no_dict_attack_errMsg = '''there has been a problem while running the multiprocessing hash cracking. "
+                                    Please rerun with option '--threads=1' '''
+            logger.critical(no_dict_attack_errMsg)
             raise SystemExit
 
         elif "can't start new thread" in excMsg:
-            errMsg = "there has been a problem while creating new thread instance. "
-            errMsg += "Please make sure that you are not running too many processes"
+            new_thread_errMsg = '''there has been a problem while creating new thread instance. \n
+                                Please make sure that you are not running too many processes'''
             if not IS_WIN:
-                errMsg += " (or increase the 'ulimit -u' value)"
-            logger.critical(errMsg)
+                new_thread_errMsg += " (or increase the 'ulimit -u' value)"
+            logger.critical(new_thread_errMsg)
             raise SystemExit
 
         elif "can't allocate read lock" in excMsg:
-            errMsg = "there has been a problem in regular socket operation "
-            errMsg += "('%s')" % excMsg.strip().split('\n')[-1]
-            logger.critical(errMsg)
+            new_line = '\n'
+            socket_errMsg = f'''there has been a problem in regular socket operation "
+                                {'%s' % excMsg.strip().split(new_line)[-1]}'''
+            logger.critical(socket_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("pymysql", "configparser")):
-            errMsg = "wrong initialization of 'pymsql' detected (using Python3 dependencies)"
-            logger.critical(errMsg)
+            pymsql_errMsg = "wrong initialization of 'pymsql' detected (using Python3 dependencies)"
+            logger.critical(pymsql_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("ntlm", "socket.error, err", "SyntaxError")):
-            errMsg = "wrong initialization of 'python-ntlm' detected (using Python2 syntax)"
-            logger.critical(errMsg)
+            python_ntlm_errMsg = "wrong initialization of 'python-ntlm' detected (using Python2 syntax)"
+            logger.critical(python_ntlm_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("drda", "to_bytes")):
-            errMsg = "wrong initialization of 'drda' detected (using Python3 syntax)"
-            logger.critical(errMsg)
+            drda_errMsg = "wrong initialization of 'drda' detected (using Python3 syntax)"
+            logger.critical(drda_errMsg)
             raise SystemExit
 
         elif "'WebSocket' object has no attribute 'status'" in excMsg:
-            errMsg = "wrong websocket library detected"
-            errMsg += " (Reference: 'https://github.com/sqlmapproject/sqlmap/issues/4572#issuecomment-775041086')"
-            logger.critical(errMsg)
+            websocket_errMsg = '''wrong websocket library detected"
+                                 (Reference: 'https://github.com/sqlmapproject/sqlmap/issues/4572#issuecomment-775041086')'''
+            logger.critical(websocket_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("window = tkinter.Tk()",)):
-            errMsg = "there has been a problem in initialization of GUI interface "
-            errMsg += "('%s')" % excMsg.strip().split('\n')[-1]
-            logger.critical(errMsg)
+            new_line = '\n'
+            GUI_errMsg = f'''there has been a problem in initialization of GUI interface \n
+                            {'%s' % excMsg.strip().split(new_line)[-1]}'''
+            logger.critical(GUI_errMsg)
             raise SystemExit
 
         elif any(_ in excMsg for _ in ("unable to access item 'liveTest'",)):
-            errMsg = "detected usage of files from different versions of sqlmap"
-            logger.critical(errMsg)
+            livetest_errMsg = "detected usage of files from different versions of sqlmap"
+            logger.critical(livetest_errMsg)
             raise SystemExit
 
         elif kb.get("dumpKeyboardInterrupt"):
@@ -443,10 +445,10 @@ def main():
             raise SystemExit
 
         elif valid is False:
-            errMsg = "code integrity check failed (turning off automatic issue creation). "
-            errMsg += "You should retrieve the latest development version from official GitHub "
-            errMsg += "repository at '%s'" % GIT_PAGE
-            logger.critical(errMsg)
+            integrity_errMsg = f'''code integrity check failed (turning off automatic issue creation). \n
+                                You should retrieve the latest development version from official GitHub \n
+                                repository at {'%s' % GIT_PAGE}'''
+            logger.critical(integrity_errMsg)
             print()
             dataToStdout(excMsg)
             raise SystemExit
@@ -458,62 +460,65 @@ def main():
             raise SystemExit
 
         elif any(_ in excMsg for _ in ("ImportError", "ModuleNotFoundError", "<frozen", "Can't find file for module", "SAXReaderNotAvailable", "source code string cannot contain null bytes", "No module named", "tp_name field", "module 'sqlite3' has no attribute 'OperationalError'")):
-            errMsg = "invalid runtime environment ('%s')" % excMsg.split("Error: ")[-1].strip()
-            logger.critical(errMsg)
+            module_bad_runtime_errMsg = "invalid runtime environment ('%s')" % excMsg.split("Error: ")[-1].strip()
+            logger.critical(module_bad_runtime_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("SyntaxError: Non-ASCII character", ".py on line", "but no encoding declared")):
-            errMsg = "invalid runtime environment ('%s')" % excMsg.split("Error: ")[-1].strip()
-            logger.critical(errMsg)
+            non_ascii_errMsg = "invalid runtime environment ('%s')" % excMsg.split("Error: ")[-1].strip()
+            logger.critical(non_ascii_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("PermissionError: [WinError 5]", "multiprocessing")):
-            errMsg = "there is a permission problem in running multiprocessing on this system. "
-            errMsg += "Please rerun with '--disable-multi'"
-            logger.critical(errMsg)
+            win_error_5_errMsg = f'''there is a permission problem in running multiprocessing on this system. \n
+                                    Please rerun with '--disable-multi' '''
+            logger.critical(win_error_5_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("No such file", "_'")):
-            errMsg = "corrupted installation detected ('%s'). " % excMsg.strip().split('\n')[-1]
-            errMsg += "You should retrieve the latest development version from official GitHub "
-            errMsg += "repository at '%s'" % GIT_PAGE
-            logger.critical(errMsg)
+            new_line = '\n'
+            corrupt_install_errMsg = f'''corrupted installation detected  {'%s' % excMsg.strip().split(new_line)[-1]}. \n
+                                        You should retrieve the latest development version from official GitHub "
+                                        repository at {'%s' % GIT_PAGE}'''
+            logger.critical(corrupt_install_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("No such file", "sqlmap.conf", "Test")):
-            errMsg = "you are trying to run (hidden) development tests inside the production environment"
-            logger.critical(errMsg)
+            sqlmap_conf_errMsg = "you are trying to run (hidden) development tests inside the production environment"
+            logger.critical(sqlmap_conf_errMsg)
             raise SystemExit
 
         elif all(_ in excMsg for _ in ("HTTPNtlmAuthHandler", "'str' object has no attribute 'decode'")):
-            errMsg = "package 'python-ntlm' has a known compatibility issue with the "
-            errMsg += "Python 3 (Reference: 'https://github.com/mullender/python-ntlm/pull/61')"
-            logger.critical(errMsg)
+            HTTPNtlmAuthHandler_errMsg = '''package 'python-ntlm' has a known compatibility issue with the \n
+                                            Python 3 (Reference: 'https://github.com/mullender/python-ntlm/pull/61')'''
+            logger.critical(HTTPNtlmAuthHandler_errMsg)
             raise SystemExit
 
-        elif "'DictObject' object has no attribute '" in excMsg and all(_ in errMsg for _ in ("(fingerprinted)", "(identified)")):
-            errMsg = "there has been a problem in enumeration. "
-            errMsg += "Because of a considerable chance of false-positive case "
-            errMsg += "you are advised to rerun with switch '--flush-session'"
-            logger.critical(errMsg)
+        elif "'DictObject' object has no attribute '" in excMsg and all(_ in Exception_errmsg for _ in ("(fingerprinted)", "(identified)")):
+            dictobject_errMsg = '''there has been a problem in enumeration. \n
+                        Because of a considerable chance of false-positive case \n
+                        you are advised to rerun with switch '--flush-session' '''
+            logger.critical(dictobject_errMsg)
             raise SystemExit
 
         elif "database disk image is malformed" in excMsg:
-            errMsg = "local session file seems to be malformed. Please rerun with '--flush-session'"
-            logger.critical(errMsg)
+            bad_session_errMsg = "local session file seems to be malformed. Please rerun with '--flush-session'"
+            logger.critical(bad_session_errMsg)
             raise SystemExit
 
         elif "AttributeError: 'module' object has no attribute 'F_GETFD'" in excMsg:
-            errMsg = "invalid runtime (\"%s\") " % excMsg.split("Error: ")[-1].strip()
-            errMsg += "(Reference: 'https://stackoverflow.com/a/38841364' & 'https://bugs.python.org/issue24944#msg249231')"
-            logger.critical(errMsg)
+            F_GETFD_errMsg = f'''invalid runtime {'%s'  % excMsg.split("Error: ")[-1].strip()} \n
+                                (Reference: \n
+                                'https://stackoverflow.com/a/38841364' &\n
+                                'https://bugs.python.org/issue24944#msg249231')'''
+            logger.critical(F_GETFD_errMsg)
             raise SystemExit
 
         elif "bad marshal data (unknown type code)" in excMsg:
             match = re.search(r"\s*(.+)\s+ValueError", excMsg)
-            errMsg = "one of your .pyc files are corrupted%s" % (" ('%s')" % match.group(1) if match else "")
-            errMsg += ". Please delete .pyc files on your system to fix the problem"
-            logger.critical(errMsg)
+            bad_marshal_errMsg = f'''one of your .pyc files are corrupted{'%s' % (" ('%s')" % match.group(1) if match else "")}. \n
+                                     Please delete .pyc files on your system to fix the problem.'''
+            logger.critical(bad_marshal_errMsg)
             raise SystemExit
 
         for match in re.finditer(r'File "(.+?)", line', excMsg):
@@ -530,15 +535,15 @@ def main():
             file_ = re.sub(r"/{2,}", '/', file_)
             excMsg = excMsg.replace(match.group(1), file_)
 
-        errMsg = maskSensitiveData(errMsg)
+        api_errMsg = maskSensitiveData(errMsg)
         excMsg = maskSensitiveData(excMsg)
 
         if conf.get("api") or not valid:
-            logger.critical("%s\n%s" % (errMsg, excMsg))
+            logger.critical("%s\n%s" % (api_errMsg, excMsg))
         else:
-            logger.critical(errMsg)
+            logger.critical(api_errMsg)
             dataToStdout("%s\n" % setColor(excMsg.strip(), level=logging.CRITICAL))
-            createGithubIssue(errMsg, excMsg)
+            createGithubIssue(api_errMsg, excMsg)
 
     finally:
         kb.threadContinue = False
@@ -575,8 +580,8 @@ def main():
                 with openFile(conf.harFile, "w+b") as f:
                     json.dump(conf.httpCollector.obtain(), fp=f, indent=4, separators=(',', ': '))
             except SqlmapBaseException as ex:
-                errMsg = getSafeExString(ex)
-                logger.critical(errMsg)
+                base_errMsg = getSafeExString(ex)
+                logger.critical(base_errMsg)
 
         if conf.get("api"):
             conf.databaseCursor.disconnect()
@@ -603,12 +608,12 @@ if __name__ == "__main__":
         pass
     except SystemExit:
         raise
-    except:
+    except IOError:
         traceback.print_exc()
     finally:
         # Reference: http://stackoverflow.com/questions/1635080/terminate-a-multi-thread-python-program
         if threading.active_count() > 1:
-            os._exit(getattr(os, "_exitcode", 0))
+            sys.exit(getattr(os, "_exitcode", 0))
         else:
             sys.exit(getattr(os, "_exitcode", 0))
 else: