input: Write a function to filter blog posts containing the word 'Python' in their content.
  assert filter_python_posts([{'title': 'Post 1', 'author': 'Author A', 'content': 'This is a blog post about Python.'}, {'title': 'Post 2', 'author': 'Author B', 'content': 'This post is not about Python.'}, {'title': 'Post 3', 'author': 'Author C', 'content': 'An interesting Python tutorial.'}]) == [{'title': 'Post 1', 'author': 'Author A', 'content': 'This is a blog post about Python.'}, {'title': 'Post 3', 'author': 'Author C', 'content': 'An interesting Python tutorial.'}]
  assert filter_python_posts([{'title': 'Post 1', 'author': 'Author A', 'content': 'Java tutorial.'}, {'title': 'Post 2', 'author': 'Author B', 'content': 'Learn C++ programming.'}, {'title': 'Post 3', 'author': 'Author C', 'content': 'Introduction to JavaScript.'}]) == []
  assert filter_python_posts([{'title': 'Post 1', 'author': 'Author A', 'content': 'Python for data science.'}, {'title': 'Post 2', 'author': 'Author B', 'content': 'Python for machine learning.'}]) == [{'title': 'Post 1', 'author': 'Author A', 'content': 'Python for data science.'}, {'title': 'Post 2', 'author': 'Author B', 'content': 'Python for machine learning.'}]
output: def filter_python_posts(posts):
      return [post for post in posts if 'Python' in post['content']]