Files
micropython/tests/basics/generator_throw.py
Phil Howard dda9b9c6da all: Prune trailing whitespace.
Prune trailing whitespace across the whole project (almost), done
automatically with:

    grep -IUrl --color "[[:blank:]]$" --exclude-dir=.git --exclude=*.exp |\
        xargs sed -i 's/[[:space:]]*$//'

Exceptions:
- Skip third-party code in lib/ and drivers/cc3100/
- Skip generated code in bluetooth_init_cc2564C_1.5.c
- Preserve command output whitespace in docs, eg:
  docs/esp8266/tutorial/repl.rst

Signed-off-by: Phil Howard <phil@gadgetoid.com>
2024-03-07 16:25:17 +11:00

54 lines
1.0 KiB
Python

# case where generator doesn't intercept the thrown/injected exception
def gen():
yield 123
yield 456
g = gen()
print(next(g))
try:
g.throw(KeyError)
except KeyError:
print('got KeyError from downstream!')
# case where a thrown exception is caught and stops the generator
def gen():
try:
yield 1
yield 2
except:
pass
g = gen()
print(next(g))
try:
g.throw(ValueError)
except StopIteration:
print('got StopIteration')
# generator ignores a thrown GeneratorExit (this is allowed)
def gen():
try:
yield 123
except GeneratorExit as e:
print('GeneratorExit', repr(e.args))
yield 456
# thrown a class
g = gen()
print(next(g))
print(g.throw(GeneratorExit))
# thrown an instance
g = gen()
print(next(g))
print(g.throw(GeneratorExit()))
# thrown an instance with None as second arg
g = gen()
print(next(g))
print(g.throw(GeneratorExit(), None))
# thrown a class and instance
g = gen()
print(next(g))
print(g.throw(GeneratorExit, GeneratorExit(123)))