How can you avoid hardcoding the URL in Django templates when using the anchor tag?
- Use JavaScript to dynamically set the URL
- Use the {% href 'url_name' %} template tag
- Use the {% url 'url_name' %} template tag
- Use the href attribute directly with the hardcoded URL
To avoid hardcoding URLs in Django templates, you can use the {% url 'url_name' %} template tag, which dynamically generates URLs based on the URL patterns defined in your Django project. This promotes maintainability and helps prevent broken links when URLs change.
How can you call a function named my_function defined in a module named my_module?
- call(my_module.my_function)
- my_function(my_module)
- my_module.call_my_function()
- my_module.my_function()
To call a function defined in a module, you use the module name followed by a dot and then the function name. In this case, it would be my_module.my_function().
How can you call a method of the parent class from within a method of a child class?
- By creating an instance of the parent class
- By directly calling the parent method
- Using the parent_method() syntax
- Using the super() function
You can call a method of the parent class from within a method of the child class using the super() function followed by the method you want to call. This allows you to access and execute the parent class's method.
How can you change the order of method resolution in multiple inheritance?
- By changing the order of base classes in the class definition
- By using the @method_resolution decorator
- Using the C3 Linearization algorithm (C3 superclass linearization)
- Using the super() function
You can change the order of method resolution in multiple inheritance in Python by using the C3 Linearization algorithm (C3 superclass linearization). This algorithm calculates the order in which base classes are considered when looking up methods. The super() function is used to call methods in the method resolution order, but it doesn't change the order itself. Changing the order of base classes in the class definition directly affects method resolution but is discouraged. There is no standard @method_resolution decorator in Python.
How can you configure a Flask application to use an external configuration file?
- a. Define configuration settings directly in your Flask app's main Python file.
- b. Create a separate Python module with configuration settings and import it into your Flask app.
- c. Use environment variables for configuration.
- d. Flask doesn't support external configuration files.
You can configure a Flask application to use an external configuration file by creating a separate Python module with configuration settings and importing it into your Flask app. This allows for better separation of concerns and easier configuration management. Options a, c, and d are not recommended practices.
How can you create a decorator that takes arguments?
- By modifying the Python interpreter.
- By using the @decorator syntax with argument values.
- Decorators in Python cannot take arguments.
- Using a function that takes the decorator arguments and returns the actual decorator function.
To create a decorator that takes arguments, you can define a function that accepts those arguments and returns a decorator function. This allows you to customize the behavior of the decorator based on the arguments provided.
How can you create a generator in Python?
- Using a class with __iter__ and __next__ methods
- Using a for loop
- Using a while loop
- Using the yield keyword in a function
You can create a generator in Python by defining a function with the yield keyword. When the function is called, it returns an iterator that generates values one at a time when you iterate over it. This is a fundamental feature for working with large datasets efficiently.
A ____ is a type of binary tree where the tree automatically balances itself as items are inserted or removed.
- AVL Tree
- B-Tree
- Heap
- Red-Black Tree
A Red-Black Tree is a type of binary search tree that automatically balances itself during insertions and deletions to ensure the tree remains approximately balanced. This property ensures efficient search and insertion operations.
A ____ loop is used to iterate a block of code a specified number of times.
- do-while
- for
- repeat
- while
In Python, a for loop is commonly used to iterate over a sequence (such as a list) a specified number of times. The for loop iterates over the elements of the sequence, executing the block of code for each element.
A ____ sort is a highly efficient sorting algorithm based on partitioning of an array of data into smaller arrays.
- Bubble
- Merge
- Quick
- Selection
A Merge sort is a highly efficient sorting algorithm that uses a divide-and-conquer approach to sort an array. It repeatedly divides the array into smaller sub-arrays until each sub-array is sorted, then merges them back together to achieve the final sorted order.