Constant PY_SSIZE_T_MIN
pub const PY_SSIZE_T_MIN: isize = Py_ssize_t::MIN; // -9_223_372_036_854_775_808isizeAvailable on crate feature
tls only.pub const PY_SSIZE_T_MIN: isize = Py_ssize_t::MIN; // -9_223_372_036_854_775_808isizetls only.