python · kumaraditya303 · May 7, 2023 · May 2, 2023
diff --git a/Include/internal/pycore_format.h b/Include/internal/pycore_format.h
@@ -14,14 +14,12 @@ extern "C" {
 * F_BLANK      ' '
 * F_ALT        '#'
 * F_ZERO       '0'
- * F_NO_NEG_0   'z'
 */
 #define F_LJUST (1<<0)
 #define F_SIGN  (1<<1)
 #define F_BLANK (1<<2)
 #define F_ALT   (1<<3)
 #define F_ZERO  (1<<4)
-#define F_NO_NEG_0 (1<<5)

 #ifdef __cplusplus
 }

diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
@@ -423,9 +423,6 @@ formatfloat(PyObject *v, int flags, int prec, int type,
    if (flags & F_ALT) {
        dtoa_flags |= Py_DTSF_ALT;
    }
-    if (flags & F_NO_NEG_0) {
-        dtoa_flags |= Py_DTSF_NO_NEG_0;
-    }
    p = PyOS_double_to_string(x, type, prec, dtoa_flags, NULL);

    if (p == NULL)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
@@ -13452,8 +13452,6 @@ formatfloat(PyObject *v, struct unicode_format_arg_t *arg,

    if (arg->flags & F_ALT)
        dtoa_flags |= Py_DTSF_ALT;
-    if (arg->flags & F_NO_NEG_0)
-        dtoa_flags |= Py_DTSF_NO_NEG_0;
    p = PyOS_double_to_string(x, arg->ch, prec, dtoa_flags, NULL);
    if (p == NULL)
        return -1;

diff --git a/Python/ast_opt.c b/Python/ast_opt.c
@@ -317,7 +317,6 @@ simple_format_arg_parse(PyObject *fmt, Py_ssize_t *ppos,
            case ' ': *flags |= F_BLANK; continue;
            case '#': *flags |= F_ALT; continue;
            case '0': *flags |= F_ZERO; continue;
-            case 'z': *flags |= F_NO_NEG_0; continue;
        }
        break;
    }