can't -> cannot

Author: pablogsal

Grammar/python.gram

@@ -851,9 +851,9 @@ invalid_for_target:
 
 invalid_group:
     | '(' a=starred_expression ')' {
-        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "can't use starred expression here") }
+        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "cannot use starred expression here") }
     | '(' a='**' expression ')' {
-        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "can't use double starred expression here") }
+        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "cannot use double starred expression here") }
 invalid_import_from_targets:
     | import_from_as_names ',' {
         RAISE_SYNTAX_ERROR("trailing comma not allowed without surrounding parentheses") }

Lib/test/test_fstring.py

@@ -1276,11 +1276,11 @@ def test_with_an_underscore_and_a_comma_in_format_specifier(self):
             f'{1:_,}'
 
     def test_syntax_error_for_starred_expressions(self):
-        error_msg = re.escape("can't use starred expression here")
+        error_msg = re.escape("cannot use starred expression here")
         with self.assertRaisesRegex(SyntaxError, error_msg):
             compile("f'{*a}'", "?", "exec")
 
-        error_msg = re.escape("can't use double starred expression here")
+        error_msg = re.escape("cannot use double starred expression here")
         with self.assertRaisesRegex(SyntaxError, error_msg):
             compile("f'{**a}'", "?", "exec")
 

Lib/test/test_syntax.py

@@ -1020,31 +1020,31 @@ def test_assign_call(self):
 
     def test_assign_del(self):
         self._check_error("del (,)", "invalid syntax")
-        self._check_error("del 1", "delete literal")
-        self._check_error("del (1, 2)", "delete literal")
-        self._check_error("del None", "delete None")
-        self._check_error("del *x", "delete starred")
-        self._check_error("del (*x)", "use starred expression")
-        self._check_error("del (*x,)", "delete starred")
-        self._check_error("del [*x,]", "delete starred")
-        self._check_error("del f()", "delete function call")
-        self._check_error("del f(a, b)", "delete function call")
-        self._check_error("del o.f()", "delete function call")
-        self._check_error("del a[0]()", "delete function call")
-        self._check_error("del x, f()", "delete function call")
-        self._check_error("del f(), x", "delete function call")
-        self._check_error("del [a, b, ((c), (d,), e.f())]", "delete function call")
-        self._check_error("del (a if True else b)", "delete conditional")
-        self._check_error("del +a", "delete expression")
-        self._check_error("del a, +b", "delete expression")
-        self._check_error("del a + b", "delete expression")
-        self._check_error("del (a + b, c)", "delete expression")
-        self._check_error("del (c[0], a + b)", "delete expression")
-        self._check_error("del a.b.c + 2", "delete expression")
-        self._check_error("del a.b.c[0] + 2", "delete expression")
-        self._check_error("del (a, b, (c, d.e.f + 2))", "delete expression")
-        self._check_error("del [a, b, (c, d.e.f[0] + 2)]", "delete expression")
-        self._check_error("del (a := 5)", "delete named expression")
+        self._check_error("del 1", "cannot delete literal")
+        self._check_error("del (1, 2)", "cannot delete literal")
+        self._check_error("del None", "cannot delete None")
+        self._check_error("del *x", "cannot delete starred")
+        self._check_error("del (*x)", "cannot use starred expression")
+        self._check_error("del (*x,)", "cannot delete starred")
+        self._check_error("del [*x,]", "cannot delete starred")
+        self._check_error("del f()", "cannot delete function call")
+        self._check_error("del f(a, b)", "cannot delete function call")
+        self._check_error("del o.f()", "cannot delete function call")
+        self._check_error("del a[0]()", "cannot delete function call")
+        self._check_error("del x, f()", "cannot delete function call")
+        self._check_error("del f(), x", "cannot delete function call")
+        self._check_error("del [a, b, ((c), (d,), e.f())]", "cannot delete function call")
+        self._check_error("del (a if True else b)", "cannot delete conditional")
+        self._check_error("del +a", "cannot delete expression")
+        self._check_error("del a, +b", "cannot delete expression")
+        self._check_error("del a + b", "cannot delete expression")
+        self._check_error("del (a + b, c)", "cannot delete expression")
+        self._check_error("del (c[0], a + b)", "cannot delete expression")
+        self._check_error("del a.b.c + 2", "cannot delete expression")
+        self._check_error("del a.b.c[0] + 2", "cannot delete expression")
+        self._check_error("del (a, b, (c, d.e.f + 2))", "cannot delete expression")
+        self._check_error("del [a, b, (c, d.e.f[0] + 2)]", "cannot delete expression")
+        self._check_error("del (a := 5)", "cannot delete named expression")
         # We don't have a special message for this, but make sure we don't
         # report "cannot delete name"
         self._check_error("del a += b", "invalid syntax")

Lib/test/test_unpack_ex.py

@@ -349,27 +349,27 @@
     >>> (*x),y = 1, 2 # doctest:+ELLIPSIS
     Traceback (most recent call last):
       ...
-    SyntaxError: can't use starred expression here
+    SyntaxError: cannot use starred expression here
 
     >>> (((*x))),y = 1, 2 # doctest:+ELLIPSIS
     Traceback (most recent call last):
       ...
-    SyntaxError: can't use starred expression here
+    SyntaxError: cannot use starred expression here
 
     >>> z,(*x),y = 1, 2, 4 # doctest:+ELLIPSIS
     Traceback (most recent call last):
       ...
-    SyntaxError: can't use starred expression here
+    SyntaxError: cannot use starred expression here
 
     >>> z,(*x) = 1, 2 # doctest:+ELLIPSIS
     Traceback (most recent call last):
       ...
-    SyntaxError: can't use starred expression here
+    SyntaxError: cannot use starred expression here
 
     >>> ((*x),y) = 1, 2 # doctest:+ELLIPSIS
     Traceback (most recent call last):
       ...
-    SyntaxError: can't use starred expression here
+    SyntaxError: cannot use starred expression here
 
 Some size constraints (all fail.)
 

Parser/parser.c

@@ -18454,7 +18454,7 @@ invalid_group_rule(Parser *p)
         )
         {
             D(fprintf(stderr, "%*c+ invalid_group[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' starred_expression ')'"));
-            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "can't use starred expression here" );
+            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "cannot use starred expression here" );
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
                 D(p->level--);
@@ -18487,7 +18487,7 @@ invalid_group_rule(Parser *p)
         )
         {
             D(fprintf(stderr, "%*c+ invalid_group[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' '**' expression ')'"));
-            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "can't use double starred expression here" );
+            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "cannot use double starred expression here" );
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
                 D(p->level--);