Nasdaq Data Link Python Client

1.0.4 verified Fri May 01 auth: no python

Official Python client for accessing Nasdaq Data Link (formerly Quandl) API. Version 1.0.4 supports Python >=3.7. Low maintenance cadence.

pip install nasdaq-data-link

Common errors

error ImportError: cannot import name 'ApiConfig' from 'nasdaqdatalink' ↓

cause Incorrect casing or wrong module name in import statement.

fix

Use: from nasdaqdatalink import ApiConfig

error AttributeError: module 'nasdaqdatalink' has no attribute 'get_data' ↓

cause Using the old function name from Quandl package.

fix

Use: nasdaqdatalink.get()

error AuthenticationError: You need to provide an API key. ↓

cause API key not set before making a request.

fix

Set ApiConfig.api_key = 'your_key' or export environment variable NASDAQ_DATA_LINK_API_KEY.

Warnings

deprecated The 'WIKI' database is deprecated by Nasdaq Data Link. Use premium or other free datasets instead. ↓

fix Use a different dataset code (e.g., 'EOD/AAPL' for end-of-day data).

gotcha API key must be set via ApiConfig.api_key or environment variable NASDAQ_DATA_LINK_API_KEY. Passing as parameter is not supported. ↓

fix Set ApiConfig.api_key = 'your_key' at the start of your script.

gotcha The package is not compatible with Python 2 and requires Python >=3.7. ↓

fix Ensure you are using Python 3.7 or higher.

Imports

nasdaqdatalink
wrong
```
import NasdaqDataLink
```
correct
```
import nasdaqdatalink
```
Case-sensitive: module name is lowercase.

nasdaqdatalink.ApiConfig

wrong

from nasdaqdatalink import api_config

correct

from nasdaqdatalink import ApiConfig

ApiConfig class, not a lowercase variable.

nasdaqdatalink.get

wrong

from nasdaqdatalink import get_data

correct

from nasdaqdatalink import get

Function is 'get', not 'get_data'.

Quickstart

Fetch stock data using the dataset code 'WIKI/AAPL'. Requires API key set as environment variable.

import nasdaqdatalink
from nasdaqdatalink import ApiConfig

ApiConfig.api_key = os.environ.get('NASDAQ_DATA_LINK_API_KEY', '')
data = nasdaqdatalink.get('WIKI/AAPL', start_date='2020-01-01', end_date='2020-12-31')
print(data.head())