diff options
| -rw-r--r-- | docs/library/ustruct.rst | 5 | ||||
| -rw-r--r-- | tests/cpydiff/modules_struct_whitespace_in_format.py | 13 |
2 files changed, 18 insertions, 0 deletions
diff --git a/docs/library/ustruct.rst b/docs/library/ustruct.rst index 357d622b2..bfcd84e2d 100644 --- a/docs/library/ustruct.rst +++ b/docs/library/ustruct.rst @@ -12,6 +12,11 @@ Supported format codes: ``b``, ``B``, ``h``, ``H``, ``i``, ``I``, ``l``, ``L``, ``q``, ``Q``, ``s``, ``P``, ``f``, ``d`` (the latter 2 depending on the floating-point support). +.. admonition:: Difference to CPython + :class: attention + + Whitespace is not supported in format strings. + Functions --------- diff --git a/tests/cpydiff/modules_struct_whitespace_in_format.py b/tests/cpydiff/modules_struct_whitespace_in_format.py new file mode 100644 index 000000000..dd0f8b48f --- /dev/null +++ b/tests/cpydiff/modules_struct_whitespace_in_format.py @@ -0,0 +1,13 @@ +""" +categories: Modules,struct +description: Struct pack with whitespace in format, whitespace ignored by CPython, error on uPy +cause: MicroPython is optimised for code size. +workaround: Don't use spaces in format strings. +""" +import struct + +try: + print(struct.pack('b b', 1, 2)) + print('Should have worked') +except: + print('struct.error') |