NewsAPI Python Client

Common errors

• ImportError: cannot import name 'NewsApiClient' from 'newsapi'

  cause Attempting to import `NewsApiClient` from the top-level `newsapi` module, which is incorrect.
  fix The correct import path is `from newsapi import NewsApiClient`. The package is `newsapi-python`, but the module name within the package is `newsapi` and the class is `NewsApiClient`.

• KeyError: 'articles'

  cause The API response did not contain the 'articles' key, often indicating an underlying API error (e.g., invalid API key, no results for the query, or incorrect parameters) rather than a successful data retrieval.
  fix Check the `status` and `code`/`message` fields in the returned JSON object before attempting to access `['articles']`. If `response['status'] == 'error'`, then `response['message']` will contain details. Ensure your API key is valid and parameters are correct.

• 401 Unauthorized / {'status': 'error', 'code': 'apiKeyMissing', 'message': 'Your API key is missing...'} or {'status': 'error', 'code': 'apiKeyInvalid', 'message': 'Your API key hasn\'t been entered correctly...'}

  cause The API key provided is either missing, incorrect, expired, or disabled.
  fix Double-check your API key for typos. Ensure it's active in your NewsAPI dashboard. Pass the key correctly during client initialization: `NewsApiClient(api_key='YOUR_API_KEY')`. For production, use environment variables.

Warnings

• gotcha The official News API documentation uses camelCase for parameters (e.g., 'pageSize'), while `newsapi-python` generally converts these to snake_case (e.g., 'page_size'). Always refer to the library's method signatures for correct parameter names.
  Fix: Consult the `newsapi-python` documentation or method signatures (e.g., `get_everything(page_size=...)`) for the correct parameter naming conventions.
• breaking The News API itself underwent a significant update from V1 to V2, changing endpoint URLs and parameter structures. `newsapi-python` primarily targets V2. If migrating from older custom implementations, be aware of these API-level changes.
  Fix: Ensure your News API key is for V2. The library `newsapi-python` uses V2 endpoints. Refer to the official News API v2 migration guide if you were previously using V1.
• gotcha NewsAPI enforces usage limits (rate limits, daily request quotas) and may cap `totalResults` based on your subscription plan. Exceeding these limits will result in API errors (e.g., 429 Too Many Requests, apiKeyExhausted).
  Fix: Monitor your usage via the NewsAPI dashboard. Implement retry logic with exponential backoff for rate-limited errors. Consider upgrading your plan for higher limits if needed.
• gotcha When printing JSON responses to the Windows command prompt (cmd or PowerShell), you might encounter `UnicodeEncodeError`. This is due to default console encoding limitations.
  Fix: Install `win-unicode-console` (`pip install win-unicode-console`) and run your script using `py -mrun myPythonScript.py`. Alternatively, explicitly encode output to 'utf-8' if possible.

Install

• pip install newsapi-python Install latest version

Imports

• NewsApiClient
  wrong:

  import newsapi

  correct:

  from newsapi import NewsApiClient

  The primary client class is `NewsApiClient`, not the top-level `newsapi` module itself.

Quickstart

Initializes the NewsApiClient with your API key and demonstrates how to fetch top headlines, all articles matching a query, and available news sources.

import os
from newsapi import NewsApiClient

# Your API key from newsapi.org. Use environment variables for production.
api_key = os.environ.get('NEWSAPI_API_KEY', 'YOUR_API_KEY_HERE')

if api_key == 'YOUR_API_KEY_HERE':
    print("WARNING: Replace 'YOUR_API_KEY_HERE' with your actual NewsAPI key or set the NEWSAPI_API_KEY environment variable.")
    print("You can get a free API key at https://newsapi.org/")
    # Exit or handle this case appropriately in a real application
    exit()

newsapi = NewsApiClient(api_key=api_key)

# Get top headlines in the US
top_headlines = newsapi.get_top_headlines(q='bitcoin', language='en', country='us')
print(f"Top headlines: {len(top_headlines.get('articles', []))} articles")

# Get all articles about Tesla from BBC News
all_articles = newsapi.get_everything(q='tesla',
                                      sources='bbc-news,the-verge',
                                      language='en',
                                      sort_by='relevancy')
print(f"All articles: {len(all_articles.get('articles', []))} articles")

# Get available news sources
sources = newsapi.get_sources(category='technology', language='en', country='us')
print(f"Available sources: {len(sources.get('sources', []))} sources")

# Print a sample article title (if available)
if top_headlines.get('articles'):
    print(f"\nSample top headline: {top_headlines['articles'][0].get('title')}")