get_rng

async def get_rng(self, name: str, start: int, stop=None) -> List[dict]

Param	Description
name	Name of the list
start	Position of the first item to get
stop	Exclusive position of the final item. stop being None means get to end of list

note

The range retrieved is [start, stop).

Raises

• ResponseError
  • name does not exist
• ValueError
  • start < 0
  • stop < 0
  • stop < start
• TypeError
  • stop not an int

Examples

client = NdbClient()
await client.open('ws://127.0.0.1:1987/')

# create API object
lists = ObjLists(client)

await lists.create('data')

data = []

for i in range(0,10):
  data.append({f'k{i}':i})

await lists.add('data', data)

# get everything but only print first 3
everything = await lists.get_rng('data', start=0)
print(everything[0:3])

# or just get the first three
firstThree = await lists.get_rng('data', start=0, stop=3)
print(firstThree)

print(await lists.get_rng('data', start=3, stop=6))

[{'k0': 0}, {'k1': 1}, {'k2': 2}]
[{'k0': 0}, {'k1': 1}, {'k2': 2}]
[{'k3': 3}, {'k4': 4}, {'k5': 5}]