![]() ![]() Specifically, within the HTML, you need to iterate through the list and render each element on its own within the HTML.įinally, when working with a dictionary, you need to iterate through the dictionary and render each element on its own. A list or array lets you access your data by a single. When working with a list, things are a little different. Dictionaries in Python are a well designed version of a very common data structure called a hash map. Within the HTML part of the app, you can use #This returns the contents (string) stored in the `foobar` variable. Return render_template('index.html', foobar=bar) Return bar # In this example, foo can return a string, list or index(): When doing this, you’ll need to pass the variables from Python to the HTML, often using the render_template function within Flask.įor this, article, let’s use this sample code for rendering within the HTML of the Flask application. In practice, the starting point for the extraction of nested data starts with either a dictionary or list data structure. Reading from Text File We can read data from a text file as a string and convert that data into a dictionary in Python. In Python Programming, key-value pairs are dictionary objects and ordered list are list objects. If you’re interested in learning how to use Flask, you can check out an awesome tutorial below.ĭepending on your project, you may need to render a string, list, or dictionary in the HTML page from within a Flask app. How to Iterate Through a Dictionary in Python: The Basics Iterating Through Keys Directly Iterating Through. Approach The problem statement mentions a list of dictionaries that have to be read from a file. Using the csv.DictReader class to convert CSV to list of dictionaries We parse the data using the DictReader class. ![]() ![]() Convert list of dictionaries to a pandas DataFrame Create a Pandas DataFrame from List of. Flask is a lightweight, easy-to-use web framework for Python.Īnd what makes Flask great (to say, Django) is that it’s possible to build a web app using just a few lines of code. Dictionaries are used to store data values in key:value pairs. ![]()
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