SyntaxWarning in test_string_literals

[graingert]

Bug report

Bug description:

./python -m unittest test.test_string_literals -vvv
/home/graingert/projects/cpython/Lib/test/test_string_literals.py:180: SyntaxWarning: "\ " is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\ "? A raw string is also an option.
  eval("\"'''''''''''''''''''''invalid\ Escape\"")
/home/graingert/projects/cpython/Lib/test/test_string_literals.py:191: SyntaxWarning: "\ " is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\ "? A raw string is also an option.
  eval("\"''Incorrect \ logic?\"")
test_eval_bytes_incomplete (test.test_string_literals.TestLiterals.test_eval_bytes_incomplete) ... ok
test_eval_bytes_invalid_escape (test.test_string_literals.TestLiterals.test_eval_bytes_invalid_escape) ... ok
test_eval_bytes_invalid_octal_escape (test.test_string_literals.TestLiterals.test_eval_bytes_invalid_octal_escape) ... ok
test_eval_bytes_normal (test.test_string_literals.TestLiterals.test_eval_bytes_normal) ... ok
test_eval_bytes_raw (test.test_string_literals.TestLiterals.test_eval_bytes_raw) ... ok
test_eval_str_incomplete (test.test_string_literals.TestLiterals.test_eval_str_incomplete) ... ok
test_eval_str_invalid_escape (test.test_string_literals.TestLiterals.test_eval_str_invalid_escape) ... ok
test_eval_str_invalid_octal_escape (test.test_string_literals.TestLiterals.test_eval_str_invalid_octal_escape) ... ok
test_eval_str_normal (test.test_string_literals.TestLiterals.test_eval_str_normal) ... ok
test_eval_str_raw (test.test_string_literals.TestLiterals.test_eval_str_raw) ... ok
test_eval_str_u (test.test_string_literals.TestLiterals.test_eval_str_u) ... ok
test_file_iso_8859_1 (test.test_string_literals.TestLiterals.test_file_iso_8859_1) ... ok
test_file_latin9 (test.test_string_literals.TestLiterals.test_file_latin9) ... ok
test_file_latin_1 (test.test_string_literals.TestLiterals.test_file_latin_1) ... ok
test_file_utf8 (test.test_string_literals.TestLiterals.test_file_utf8) ... ok
test_file_utf_8 (test.test_string_literals.TestLiterals.test_file_utf_8) ... ok
test_file_utf_8_error (test.test_string_literals.TestLiterals.test_file_utf_8_error) ... ok
test_invalid_escape_locations_with_offset (test.test_string_literals.TestLiterals.test_invalid_escape_locations_with_offset) ... ok
test_template (test.test_string_literals.TestLiterals.test_template) ... ok
test_uppercase_prefixes (test.test_string_literals.TestLiterals.test_uppercase_prefixes) ... ok

CPython versions tested on:

3.12, 3.13, 3.14, CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-131649: fix test_string_literals SyntaxWarning #131650
• [3.13] gh-131649: fix test_string_literals SyntaxWarning (GH-131650) #131766
• [3.12] gh-131649: fix test_string_literals SyntaxWarning (GH-131650) (GH-131766) #131772