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Implement PEP 380 - 'yield from' (closes #11682)

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This commit is contained in:
Nick Coghlan 2012-01-13 21:43:40 +10:00
parent e51757f6de
commit 1f7ce62bd6
33 changed files with 872 additions and 421 deletions
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42
Lib/test/test_generators.py
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@ -728,29 +728,6 @@ Ye olde Fibonacci generator, tee style.
syntax_tests = """
>>> def f():
... return 22
... yield 1
Traceback (most recent call last):
..
SyntaxError: 'return' with argument inside generator
>>> def f():
... yield 1
... return 22
Traceback (most recent call last):
..
SyntaxError: 'return' with argument inside generator
"return None" is not the same as "return" in a generator:
>>> def f():
... yield 1
... return None
Traceback (most recent call last):
..
SyntaxError: 'return' with argument inside generator
These are fine:
>>> def f():
@ -866,20 +843,6 @@ These are fine:
>>> type(f())
<class 'generator'>
>>> def f():
... if 0:
... lambda x: x # shouldn't trigger here
... return # or here
... def f(i):
... return 2*i # or here
... if 0:
... return 3 # but *this* sucks (line 8)
... if 0:
... yield 2 # because it's a generator (line 10)
Traceback (most recent call last):
SyntaxError: 'return' with argument inside generator
This one caused a crash (see SF bug 567538):
>>> def f():
@ -1566,11 +1529,6 @@ Traceback (most recent call last):
...
SyntaxError: 'yield' outside function
>>> def f(): return lambda x=(yield): 1
Traceback (most recent call last):
...
SyntaxError: 'return' with argument inside generator
>>> def f(): x = yield = y
Traceback (most recent call last):
...