lazy-import boto3

integrations/opensearch/pyproject.toml

@@ -22,7 +22,7 @@ classifiers = [
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
 ]
-dependencies = ["haystack-ai", "opensearch-py>=2,<3", "boto3"]
+dependencies = ["haystack-ai", "opensearch-py>=2,<3"]
 
 [project.urls]
 Documentation = "https://github.com/deepset-ai/haystack-core-integrations/tree/main/integrations/opensearch#readme"
@@ -47,6 +47,7 @@ dependencies = [
   "pytest-rerunfailures",
   "pytest-xdist",
   "haystack-pydoc-tools",
+  "boto3",
 ]
 [tool.hatch.envs.default.scripts]
 test = "pytest --reruns 3 --reruns-delay 30 -x {args:tests}"
@@ -61,7 +62,7 @@ python = ["3.8", "3.9", "3.10", "3.11"]
 
 [tool.hatch.envs.lint]
 detached = true
-dependencies = ["black>=23.1.0", "mypy>=1.0.0", "ruff>=0.0.243"]
+dependencies = ["black>=23.1.0", "mypy>=1.0.0", "ruff>=0.0.243", "boto3"]
 [tool.hatch.envs.lint.scripts]
 typing = "mypy --install-types --non-interactive --explicit-package-bases {args:src/ tests}"
 style = ["ruff check {args:.}", "black --check --diff {args:.}"]

integrations/opensearch/src/haystack_integrations/common/opensearch/utils.py

@@ -1,9 +1,12 @@
 from typing import Optional
 
-import boto3
-from botocore.exceptions import BotoCoreError
+from haystack.lazy_imports import LazyImport
 from haystack_integrations.common.opensearch.errors import AWSConfigurationError
 
+with LazyImport("Run 'pip install \"boto3\"' to install boto3.") as boto3_import:
+    import boto3
+    from botocore.exceptions import BotoCoreError
+
 AWS_CONFIGURATION_KEYS = [
     "aws_access_key_id",
     "aws_secret_access_key",
@@ -35,6 +38,7 @@ def get_aws_session(
     :raises AWSConfigurationError: If the provided AWS credentials are invalid.
     :returns: The created AWS session.
     """
+    boto3_import.check()
     try:
         return boto3.Session(
             aws_access_key_id=aws_access_key_id,