mypy-boto3-managedblockchain-query Type Annotations

Warnings

• breaking Support for Python 3.8 was removed in `mypy-boto3-builder` version 8.12.0, affecting all generated stub packages including `mypy-boto3-managedblockchain-query`. Users on Python 3.8 will need to upgrade to Python 3.9 or newer.
  Fix: Upgrade your Python environment to 3.9 or later.
• breaking The `mypy-boto3-builder` (from version 8.12.0) migrated all generated packages to PEP 561-compliant stub packages. While generally beneficial, it changes how `mypy` discovers type information. If you were relying on custom `MYPYPATH` configurations for older `mypy-boto3` packages, you might need to adjust your setup as stub-only packages must be installed in the environment `mypy` checks.
  Fix: Ensure the `mypy-boto3-managedblockchain-query` package is installed directly into the Python environment that your `mypy` checker uses. Review `mypy` documentation on PEP 561 stub discovery.
• breaking Starting with `mypy-boto3-builder` 8.9.0, TypeDef names for packed method arguments may use shorter names (e.g., `CreateDistributionRequestRequestTypeDef` -> `CreateDistributionRequestTypeDef`), and conflicting TypeDef `Extra` postfixes were moved (e.g., `CreateDistributionExtraRequestTypeDef` -> `CreateDistributionRequestExtraTypeDef`). If your code explicitly imported or referenced the older, longer TypeDef names from this package, it might break type checking.
  Fix: Update your import statements and TypeDef references to use the potentially shorter or re-ordered names. Refer to the specific service's documentation for the correct TypeDef names.
• gotcha This package provides *only* type annotations. You must also install `boto3` (e.g., `pip install boto3`) for your code to function at runtime. Without `boto3` installed, your application will raise `ModuleNotFoundError` or similar runtime errors.
  Fix: Always install `boto3` alongside `mypy-boto3-managedblockchain-query`.

Install

• pip install boto3 mypy-boto3-managedblockchain-query Install with pip

Imports

• ManagedBlockchainQueryClient

  from mypy_boto3_managedblockchain_query.client import ManagedBlockchainQueryClient

  Imports the type for the ManagedBlockchainQuery boto3 client.
• ListTransactionsOutputTypeDef

  from mypy_boto3_managedblockchain_query.type_defs import ListTransactionsOutputTypeDef

  Imports a specific TypedDict for API response structures.
• ManagedBlockchainQueryServiceName

  from mypy_boto3_managedblockchain_query.literals import ManagedBlockchainQueryServiceName

  Imports a Literal type for the service name, useful for strict type checking of boto3.client calls.

Quickstart

This quickstart demonstrates how to initialize a type-hinted ManagedBlockchainQuery client and make a sample API call using the `list_transactions` method. It shows the expected type annotations for the client object and the response structure, enabling better static analysis and autocompletion.

import boto3
from mypy_boto3_managedblockchain_query.client import ManagedBlockchainQueryClient
from mypy_boto3_managedblockchain_query.type_defs import ListTransactionsOutputTypeDef

# Ensure AWS credentials (e.g., via ~/.aws/credentials or environment variables)
# and region are configured for boto3 to function.

client: ManagedBlockchainQueryClient = boto3.client("managedblockchain-query")

try:
    # Example: List transactions for a specific network and address
    # Replace 'ETHEREUM_MAINNET' and '0x...' with actual values for your use case.
    # 'fromBlock' and 'toBlock' are placeholders; use appropriate values or remove if not needed.
    response: ListTransactionsOutputTypeDef = client.list_transactions(
        network="ETHEREUM_MAINNET",
        address="0x...", # Placeholder: Replace with a valid blockchain address
        fromBlock='0',
        toBlock='latest'
    )

    print("Transactions found:")
    for transaction in response.get("transactions", []):
        print(f"  Transaction ID: {transaction['transactionId']}")

    next_token = response.get("nextToken")
    if next_token:
        print(f"  Next Token: {next_token}")

except client.exceptions.ResourceNotFoundException as e:
    print(f"Error: Resource not found - {e}")
except Exception as e:
    print(f"An unexpected error occurred: {e}")