mirror of
https://github.com/licsber/micropython.git
synced 2024-09-21 09:30:24 +08:00
1e70fda69f
In CPython 3.4 this raises a SyntaxError. In CPython 3.5+ having a positional after * is allowed but uPy has the wrong semantics and passes the arguments in the incorrect order. To prevent incorrect use of a function going unnoticed it is important to raise the SyntaxError in uPy, until the behaviour is fixed to follow CPython 3.5+.
33 lines
1.0 KiB
Python
33 lines
1.0 KiB
Python
# tests that differ when running under Python 3.4 vs 3.5/3.6
|
|
|
|
# from basics/fun_kwvarargs.py
|
|
# test evaluation order of arguments (in 3.4 it's backwards, 3.5 it's fixed)
|
|
def f4(*vargs, **kwargs):
|
|
print(vargs, kwargs)
|
|
def print_ret(x):
|
|
print(x)
|
|
return x
|
|
f4(*print_ret(['a', 'b']), kw_arg=print_ret(None))
|
|
|
|
# test evaluation order of dictionary key/value pair (in 3.4 it's backwards)
|
|
{print_ret(1):print_ret(2)}
|
|
|
|
# from basics/syntaxerror.py
|
|
def test_syntax(code):
|
|
try:
|
|
exec(code)
|
|
except SyntaxError:
|
|
print("SyntaxError")
|
|
test_syntax("f(*a, *b)") # can't have multiple * (in 3.5 we can)
|
|
test_syntax("f(**a, **b)") # can't have multiple ** (in 3.5 we can)
|
|
test_syntax("f(*a, b)") # can't have positional after *
|
|
test_syntax("f(**a, b)") # can't have positional after **
|
|
test_syntax("() = []") # can't assign to empty tuple (in 3.6 we can)
|
|
test_syntax("del ()") # can't delete empty tuple (in 3.6 we can)
|
|
|
|
# from basics/sys1.py
|
|
# uPy prints version 3.4
|
|
import sys
|
|
print(sys.version[:3])
|
|
print(sys.version_info[0], sys.version_info[1])
|