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blueloveTH 2023-07-26 22:02:44 +08:00
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docs/features/differences.md
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@ -23,12 +23,11 @@ The easiest way to test a feature is to [try it on your browser](https://pocketp
1. `__getattr__` and `__setattr__`. 1. `__getattr__` and `__setattr__`.
2. Descriptor protocol `__get__` and `__set__`. However, `@property` is implemented. 2. Descriptor protocol `__get__` and `__set__`. However, `@property` is implemented.
3. `__slots__` in class definition. 3. `__slots__` in class definition.
4. Unpacking in `list` and `dict` literals, e.g. `[1, 2, *a]`. 4. Access the exception object in try..except.
5. Access the exception object in try..except. 5. `else` clause in try..except.
6. `else` clause in try..except. 6. Inplace methods like `__iadd__` and `__imul__`.
7. Inplace methods like `__iadd__` and `__imul__`. 7. `__del__` in class definition.
8. `__del__` in class definition. 8. Multiple inheritance.
9. Multiple inheritance.
## Different behaviors ## Different behaviors
@ -36,10 +35,9 @@ The easiest way to test a feature is to [try it on your browser](https://pocketp
2. When a generator is exhausted, `StopIteration` is returned instead of raised. 2. When a generator is exhausted, `StopIteration` is returned instead of raised.
3. `++i` and `--j` is an increment/decrement statement, not an expression. 3. `++i` and `--j` is an increment/decrement statement, not an expression.
4. `int` does not derive from `bool`. 4. `int` does not derive from `bool`.
5. `int` is not of unlimited precision. In 32 bit system, `int` and `float` is 30 bit; in 64 bit system, they are both 62 bit. 5. `int` is not of unlimited precision. In 32 bit system, `int` and `float` is 30 bit; in 64 bit system, they are both 62 bit. You can use `long` type explicitly for arbitrary sized integers.
6. `__ne__` is not required. Define `__eq__` is enough. 6. `__ne__` is not required. Define `__eq__` is enough.
7. Raw string cannot have boundary quotes in it, even escaped. See [#55](https://github.com/blueloveTH/pocketpy/issues/55). 7. Raw string cannot have boundary quotes in it, even escaped. See [#55](https://github.com/blueloveTH/pocketpy/issues/55).
8. In a starred unpacked assignment, e.g. `a, b, *c = x`, the starred variable can only be presented in the last position. `a, *b, c = x` is not supported. 8. In a starred unpacked assignment, e.g. `a, b, *c = x`, the starred variable can only be presented in the last position. `a, *b, c = x` is not supported.
9. A `Tab` is equivalent to 4 spaces. You can mix `Tab` and spaces in indentation, but it is not recommended. 9. A `Tab` is equivalent to 4 spaces. You can mix `Tab` and spaces in indentation, but it is not recommended.
10. `%`, `&`, `//`, `^` and `|` for `int` behave the same as C, not python. 10. `%`, `&`, `//`, `^` and `|` for `int` behave the same as C, not python.
11. `int` is of limited precision. For arbitrary sized integers, you may use `long` type explicitly.