Method set_policy_from_env

tables/exceptions.py:105–129

Set the policy from environment variables.

(cls)

    @classmethod
    def set_policy_from_env(cls) -> str:
        """Set the policy from environment variables."""
        envmap = {
            "IGNORE": False,
            "FALSE": False,
            "SAVE": True,
            "TRUE": True,
            "VERBOSE": "VERBOSE",
            "DEFAULT": "VERBOSE",
        }
        oldvalue = cls.DEFAULT_H5_BACKTRACE_POLICY
        envvalue = os.environ.get("PT_DEFAULT_H5_BACKTRACE_POLICY", "DEFAULT")
        try:
            newvalue = envmap[envvalue.upper()]
        except KeyError:
            warnings.warn(
                "Invalid value for the environment variable "
                "'PT_DEFAULT_H5_BACKTRACE_POLICY'.  The default "
                "policy for HDF5 back trace management in PyTables "
                "will be: '%s'" % oldvalue
            )
        else:
            cls.DEFAULT_H5_BACKTRACE_POLICY = newvalue

        return oldvalue

    def __init__(self, *args, **kargs) -> None: