Yes, you can use

pip install

within a virtual environment (venv) to install a Python library. However, if you're working on an Airbyte connector, it's recommended to add the dependencies to the

setup.py

file. This ensures that the build system handles installing all dependencies into the virtual environment. To add a dependency to

setup.py

, you can follow these steps: 1. Open the

setup.py

file in your connector's directory. 2. Locate the

install_requires

list. 3. Add your desired library as a string to the list, specifying the version if necessary (e.g.,

'library-name==1.0.0'

). After adding the dependency to

setup.py

, make sure to re-run the build command to install the new dependency in your virtual environment. For more information on setting up a virtual environment and managing dependencies, you can refer to these sources: - [Building a Python Source](https://docs.airbyte.com/connector-development/tutorials/building-a-python-source) - [Building a Python Destination](https://docs.airbyte.com/connector-development/tutorials/building-a-python-destination) - [CDK Tutorial: Python HTTP](https://docs.airbyte.com/connector-development/tutorials/cdk-tutorial-python-http/install-dependencies)

The

default_cursor_field

should be set if a source supports the

INCREMENTAL

sync mode and has

source_defined_cursor

set to

true

. In this case, the source is responsible for determining internally how it tracks which records are new or updated since the last sync. The

default_cursor_field

is an array of keys to a field in the schema that will be used as the cursor if the user does not override it with the

cursor_field

attribute in the

ConfiguredAirbyteStream

[source](https://docs.airbyte.com/understanding-airbyte/airbyte-protocol#catalog). To know if

default_cursor_field

should be set to

true

, you need to check if the source supports

INCREMENTAL

sync mode and if it has

source_defined_cursor

set to

true

. If both conditions are met, then you should set the

default_cursor_field

.