def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
python类_last_iteration()的实例源码
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def make_async_loop_context(iterable, recurse=None, depth0=0):
# Length is more complicated and less efficient in async mode. The
# reason for this is that we cannot know if length will be used
# upfront but because length is a property we cannot lazily execute it
# later. This means that we need to buffer it up and measure :(
#
# We however only do this for actual iterators, not for async
# iterators as blocking here does not seem like the best idea in the
# world.
try:
length = len(iterable)
except (TypeError, AttributeError):
if not hasattr(iterable, '__aiter__'):
iterable = tuple(iterable)
length = len(iterable)
else:
length = None
async_iterator = auto_aiter(iterable)
try:
after = await async_iterator.__anext__()
except StopAsyncIteration:
after = _last_iteration
return AsyncLoopContext(async_iterator, after, length, recurse, depth0)
def __anext__(self):
ctx = self.context
ctx.index0 += 1
if ctx._after is _last_iteration:
raise StopAsyncIteration()
next_elem = ctx._after
try:
ctx._after = await ctx._async_iterator.__anext__()
except StopAsyncIteration:
ctx._after = _last_iteration
return next_elem, ctx
def __anext__(self):
ctx = self.context
ctx.index0 += 1
if ctx._after is _last_iteration:
raise StopAsyncIteration()
next_elem = ctx._after
try:
ctx._after = await ctx._async_iterator.__anext__()
except StopAsyncIteration:
ctx._after = _last_iteration
return next_elem, ctx
def __anext__(self):
ctx = self.context
ctx.index0 += 1
if ctx._after is _last_iteration:
raise StopAsyncIteration()
next_elem = ctx._after
try:
ctx._after = await ctx._async_iterator.__anext__()
except StopAsyncIteration:
ctx._after = _last_iteration
return next_elem, ctx
