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Merged
youknowone merged 4 commits into from
May 20, 2026
Merged

Align more error messages with CPython 3.14.5 #7933

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f3abe06
Align more error messages with CPython 3.14.5
ShaharNaveh May 20, 2026
575bcf2
Align patches for `test_eof.py`
ShaharNaveh May 20, 2026
6d46549
Unmark passing test
ShaharNaveh May 20, 2026
c17af96
Fix more
ShaharNaveh May 20, 2026
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11 changes: 5 additions & 6 deletions Lib/test/test_eof.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
import unittest

class EOFTestCase(unittest.TestCase):
@unittest.expectedFailure # TODO: RUSTPYTHON
def test_EOF_single_quote(self):
expect = "unterminated string literal (detected at line 1) (<string>, line 1)"
for quote in ("'", "\""):
Expand All @@ -19,7 +18,7 @@ def test_EOF_single_quote(self):
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.offset, 1)

@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.expectedFailure # TODO: RUSTPYTHON
def test_EOFS(self):
expect = ("unterminated triple-quoted string literal (detected at line 3) (<string>, line 1)")
with self.assertRaises(SyntaxError) as cm:
Expand All @@ -46,7 +45,7 @@ def test_EOFS(self):
self.assertEqual(cm.exception.text, "ä = '''thîs is ")
self.assertEqual(cm.exception.offset, 5)

@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.expectedFailure # TODO: RUSTPYTHON
@force_not_colorized
def test_EOFS_with_file(self):
expect = ("(<string>, line 1)")
Expand Down Expand Up @@ -87,15 +86,15 @@ def test_EOFS_with_file(self):
' ^',
'SyntaxError: unterminated triple-quoted string literal (detected at line 4)'])

@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.expectedFailure # TODO: RUSTPYTHON
@warnings_helper.ignore_warnings(category=SyntaxWarning)
def test_eof_with_line_continuation(self):
expect = "unexpected EOF while parsing (<string>, line 1)"
with self.assertRaises(SyntaxError) as cm:
compile('"\\Xhh" \\', '<string>', 'exec')
self.assertEqual(str(cm.exception), expect)

@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.expectedFailure # TODO: RUSTPYTHON
def test_line_continuation_EOF(self):
"""A continuation at the end of input must be an error; bpo2180."""
expect = 'unexpected EOF while parsing (<string>, line 1)'
Expand Down Expand Up @@ -128,7 +127,7 @@ def test_line_continuation_EOF(self):
exec('\\')
self.assertEqual(str(cm.exception), expect)

@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.expectedFailure # TODO: RUSTPYTHON
@unittest.skipIf(not sys.executable, "sys.executable required")
@force_not_colorized
def test_line_continuation_EOF_from_file_bpo2180(self):
Expand Down
103 changes: 51 additions & 52 deletions Lib/test/test_syntax.py
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Original file line number Diff line number Diff line change
Expand Up @@ -156,15 +156,15 @@
Traceback (most recent call last):
SyntaxError: cannot assign to conditional expression

>>> a = 42 if True # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> a = 42 if True
Traceback (most recent call last):
SyntaxError: expected 'else' after 'if' expression

>>> a = (42 if True) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> a = (42 if True)
Traceback (most recent call last):
SyntaxError: expected 'else' after 'if' expression

>>> a = [1, 42 if True, 4] # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> a = [1, 42 if True, 4]
Traceback (most recent call last):
SyntaxError: expected 'else' after 'if' expression

Expand Down Expand Up @@ -275,7 +275,7 @@
Traceback (most recent call last):
SyntaxError: cannot assign to function call

>>> with a as b # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with a as b
Traceback (most recent call last):
SyntaxError: expected ':'

Expand Down Expand Up @@ -478,47 +478,47 @@
Traceback (most recent call last):
SyntaxError: var-keyword argument cannot have default value

>>> def foo(a,*a, b, **c, d): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,*a, b, **c, d):
... pass
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> def foo(a,*a, b, **c, d=4): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,*a, b, **c, d=4):
... pass
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> def foo(a,*a, b, **c, *d): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,*a, b, **c, *d):
... pass
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> def foo(a,*a, b, **c, **d): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,*a, b, **c, **d):
... pass
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> def foo(a=1,/,**b,/,c): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a=1,/,**b,/,c):
... pass
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> def foo(*b,*d): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(*b,*d):
... pass
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> def foo(a,*b,c,*d,*e,c): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,*b,c,*d,*e,c):
... pass
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> def foo(a,b,/,c,*b,c,*d,*e,c): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,b,/,c,*b,c,*d,*e,c):
... pass
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> def foo(a,b,/,c,*b,c,*d,**e): # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def foo(a,b,/,c,*b,c,*d,**e):
... pass
Traceback (most recent call last):
SyntaxError: * argument may appear only once
Expand Down Expand Up @@ -583,39 +583,39 @@
Traceback (most recent call last):
SyntaxError: var-keyword argument cannot have default value

>>> lambda a, *a, b, **c, d: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a, *a, b, **c, d: None
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> lambda a,*a, b, **c, d=4: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,*a, b, **c, d=4: None
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> lambda a,*a, b, **c, *d: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,*a, b, **c, *d: None
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> lambda a,*a, b, **c, **d: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,*a, b, **c, **d: None
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> lambda a=1,/,**b,/,c: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a=1,/,**b,/,c: None
Traceback (most recent call last):
SyntaxError: arguments cannot follow var-keyword argument

>>> lambda *b,*d: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda *b,*d: None
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> lambda a,*b,c,*d,*e,c: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,*b,c,*d,*e,c: None
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> lambda a,b,/,c,*b,c,*d,*e,c: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,b,/,c,*b,c,*d,*e,c: None
Traceback (most recent call last):
SyntaxError: * argument may appear only once

>>> lambda a,b,/,c,*b,c,*d,**e: None # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> lambda a,b,/,c,*b,c,*d,**e: None
Traceback (most recent call last):
SyntaxError: * argument may appear only once

Expand Down Expand Up @@ -1093,27 +1093,27 @@

Missing ':' before suites:

>>> def f() # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def f()
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> def f[T]() # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def f[T]()
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> class A # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> class A
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> class A[T] # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> class A[T]
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> class A[T]() # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> class A[T]()
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
Expand All @@ -1123,7 +1123,7 @@
Traceback (most recent call last):
SyntaxError: invalid syntax

>>> if 1 # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> if 1
... pass
... elif 1:
... pass
Expand All @@ -1132,7 +1132,7 @@
Traceback (most recent call last):
SyntaxError: expected ':'

>>> if 1: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> if 1:
... pass
... elif 1
... pass
Expand All @@ -1141,7 +1141,7 @@
Traceback (most recent call last):
SyntaxError: expected ':'

>>> if 1: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> if 1:
... pass
... elif 1:
... pass
Expand All @@ -1150,7 +1150,7 @@
Traceback (most recent call last):
SyntaxError: expected ':'

>>> for x in range(10) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> for x in range(10)
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
Expand All @@ -1160,47 +1160,47 @@
Traceback (most recent call last):
SyntaxError: invalid syntax

>>> while True # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> while True
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with blech as something # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with blech as something
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with blech # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with blech
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with blech, block as something # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with blech, block as something
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with blech, block as something, bluch # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with blech, block as something, bluch
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with (blech as something) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with (blech as something)
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with (blech) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with (blech)
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with (blech, block as something) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with (blech, block as something)
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> with (blech, block as something, bluch) # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> with (blech, block as something, bluch)
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
Expand All @@ -1210,19 +1210,19 @@
Traceback (most recent call last):
SyntaxError: invalid syntax. Did you mean 'and'?

>>> try # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> try
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> try: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> try:
... pass
... except
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> match x # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> match x
... case list():
... pass
Traceback (most recent call last):
Expand All @@ -1234,13 +1234,13 @@
Traceback (most recent call last):
SyntaxError: invalid syntax

>>> match x: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> match x:
... case list()
... pass
Traceback (most recent call last):
SyntaxError: expected ':'

>>> match x: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> match x:
... case [y] if y > 0
... pass
Traceback (most recent call last):
Expand Down Expand Up @@ -1287,27 +1287,27 @@

Missing parens after function definition

>>> def f: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def f:
Traceback (most recent call last):
SyntaxError: expected '('

>>> async def f: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> async def f:
Traceback (most recent call last):
SyntaxError: expected '('

>>> def f -> int: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def f -> int:
Traceback (most recent call last):
SyntaxError: expected '('

>>> async def f -> int: # type: int # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> async def f -> int: # type: int
Traceback (most recent call last):
SyntaxError: expected '('

>>> async def f[T]: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> async def f[T]:
Traceback (most recent call last):
SyntaxError: expected '('

>>> def f[T] -> str: # TODO: RUSTPYTHON; Wrong error message # doctest: +EXPECTED_FAILURE
>>> def f[T] -> str:
Traceback (most recent call last):
SyntaxError: expected '('

Expand Down Expand Up @@ -3092,7 +3092,6 @@ async def bug():
with self.subTest(f"out of range: {n=}"):
self._check_error(get_code(n), "too many statically nested blocks")

@unittest.expectedFailure # TODO: RUSTPYTHON
def test_barry_as_flufl_with_syntax_errors(self):
# The "barry_as_flufl" rule can produce some "bugs-at-a-distance" if
# is reading the wrong token in the presence of syntax errors later
Expand Down
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