sqlmapproject/sqlmap · error · SqlmapGenericException

make sure that there is an empty file '__init__.py' inside o

Error message

make sure that there is an empty file '__init__.py' inside of tamper scripts directory '%s'

What it means

Error "make sure that there is an empty file '__init__.py' inside of tamper scripts directory '%s'" thrown in sqlmapproject/sqlmap.

Source

Thrown at lib/core/option.py:894

                    raise SqlmapFilePathException(errMsg)

                elif not script.endswith(".py"):
                    errMsg = "tamper script '%s' should have an extension '.py'" % script
                    raise SqlmapSyntaxException(errMsg)
            except UnicodeDecodeError:
                errMsg = "invalid character provided in option '--tamper'"
                raise SqlmapSyntaxException(errMsg)

            dirname, filename = os.path.split(script)
            dirname = os.path.abspath(dirname)

            infoMsg = "loading tamper module '%s'" % filename[:-3]
            logger.info(infoMsg)

            if not os.path.exists(os.path.join(dirname, "__init__.py")):
                errMsg = "make sure that there is an empty file '__init__.py' "
                errMsg += "inside of tamper scripts directory '%s'" % dirname
                raise SqlmapGenericException(errMsg)

            if dirname not in sys.path:
                sys.path.insert(0, dirname)

            try:
                getattr(importlib, "invalidate_caches", lambda: None)()  # Note: py3.3+ only; a script just written into an already-scanned dir is invisible to a cached FileFinder (Windows coarse mtime)
                module = __import__(safeFilepathEncode(filename[:-3]))
            except Exception as ex:
                raise SqlmapSyntaxException("cannot import tamper module '%s' (%s)" % (getUnicode(filename[:-3]), getSafeExString(ex)))

            priority = PRIORITY.NORMAL if not hasattr(module, "__priority__") else module.__priority__
            priority = priority if priority is not None else PRIORITY.LOWEST

            for name, function in inspect.getmembers(module, inspect.isfunction):
                if name == "tamper" and (hasattr(inspect, "signature") and all(_ in inspect.signature(function).parameters for _ in ("payload", "kwargs")) or inspect.getargspec(function).args and inspect.getargspec(function).keywords == "kwargs"):
                    found = True
                    kb.tamperFunctions.append(function)
                    function.__name__ = module.__name__

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at lib/core/option.py:894 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/b9b082b45ea86637. Report an issue: GitHub.