diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/basics/string_fstring.py | 7 | ||||
| -rw-r--r-- | tests/cpydiff/core_fstring_parser.py | 8 |
2 files changed, 11 insertions, 4 deletions
diff --git a/tests/basics/string_fstring.py b/tests/basics/string_fstring.py index 4f7225fca..7e8a97fd3 100644 --- a/tests/basics/string_fstring.py +++ b/tests/basics/string_fstring.py @@ -22,6 +22,13 @@ def foo(a, b): return f'{x}{y}{a}{b}' print(foo(7, 8)) +# ':' character within {...} that should not be interpreted as format specifiers. +print(f"a{[0,1,2][0:2]}") +print(f"a{[0,15,2][0:2][-1]:04x}") + +# Nested '{' and '}' characters. +print(f"a{ {0,1,2}}") + # PEP-0498 specifies that '\\' and '#' must be disallowed explicitly, whereas # MicroPython relies on the syntax error as a result of the substitution. diff --git a/tests/cpydiff/core_fstring_parser.py b/tests/cpydiff/core_fstring_parser.py index 6917f3cfa..22bbc5866 100644 --- a/tests/cpydiff/core_fstring_parser.py +++ b/tests/cpydiff/core_fstring_parser.py @@ -1,9 +1,9 @@ """ categories: Core -description: f-strings cannot support expressions that require parsing to resolve nested braces +description: f-strings cannot support expressions that require parsing to resolve unbalanced nested braces and brackets cause: MicroPython is optimised for code space. -workaround: Only use simple expressions inside f-strings +workaround: Always use balanced braces and brackets in expressions inside f-strings """ -f'{"hello {} world"}' -f"{repr({})}" +print(f'{"hello { world"}') +print(f'{"hello ] world"}') |