filtering by category flask+mongodb

[Leon79]

Hi coders! I'm dividing every page by filtering by the correct category in my recipe blog, but I don't know why I cannot manage. For example, I have vegetarian.html, It works when I simply don't look for a specific category in MongoDB, but when I do I get an error, I write here the code:

This is main.py

@app.route('/vegetarian')
def vegetarian():
    query={{"category_name": "Vegetarian"}}
    return render_template("vegetarian.html", recipes=mongo.db.recipes.find(query))

The error is this:

File "/Users/RBianco/Desktop/Course restart/cookbook-milestone/main.py", line 35, in vegetarian
query={{"category_name": "Vegetarian"}}
TypeError: unhashable type: 'dict'


For sure I wrote it wrong.

Any help please?

Thank you guys!!!