How can you set up a code breakpoint in Python to start the debugger?
- Add the line breakpoint() at the location where you want to break execution.
- Python does not support breakpoints.
- Set a breakpoint using the debugger statement in your code.
- Use the pdb.set_trace() function at the line where you want to set the breakpoint.
You can set up a code breakpoint in Python by using the pdb.set_trace() function at the line where you want to start debugging. This function will pause execution and start the Python debugger at that point.
How can you use the unittest framework to confirm that a specific exception is raised by a piece of code?
- Use assertException() method
- Use assertRaises() method
- Use checkException() method
- Use expectException() method
In unittest, you can use the assertRaises() method to confirm that a specific exception is raised by a piece of code. This method takes the exception class and the callable as arguments and asserts that the callable raises the specified exception.
How can you view the list of variables and their values in the current scope while debugging with Pdb?
- list()
- locals()
- scope()
- vars()
To view the list of variables and their values in the current scope while debugging with Pdb, you can use the locals() function. It returns a dictionary of all local variables in the current scope.
How can you visualize the distribution of a single variable using Seaborn?
- Box plot
- Histogram
- Line plot
- Scatter plot
To visualize the distribution of a single variable in Seaborn, you can use a histogram. A histogram displays the frequency distribution of the data, showing how values are distributed across different bins or intervals.
How do you convert a list of lists into a single flat list in Python?
- [item for sublist in nested_list for item in sublist]
- list(nested_list)
- nested_list.flat()
- nested_list.flatten()
To flatten a list of lists in Python, you can use a list comprehension with nested loops. This method creates a new list containing all elements from the inner lists concatenated together.
How can you optimize the performance of static files (CSS, JS, Images) in a web application developed using Python frameworks?
- Compress and minify static files
- Optimize database queries
- Use serverless functions
- Utilize a Content Delivery Network (CDN)
Utilizing a Content Delivery Network (CDN) is a highly effective way to optimize the performance of static files. CDNs distribute your files across multiple geographically distributed servers, reducing latency and improving load times.
How can you optimize the recursive Fibonacci function with dynamic programming?
- Convert it to an iterative function
- Implement a tail-recursive version
- Increase the base case value
- Use memoization to store intermediate results
Dynamic programming can optimize the recursive Fibonacci function by using memoization to store previously calculated Fibonacci numbers, reducing redundant calculations. The other options don't directly optimize the recursive approach.
How would you optimize the space complexity of a dynamic programming algorithm?
- Increase the input size to reduce space complexity
- Optimize time complexity instead
- Use a brute-force approach
- Use memoization to store intermediate results
To optimize space complexity in dynamic programming, you can use memoization (caching) to store intermediate results, avoiding redundant calculations and reducing memory usage.
How would you organize a group of related functions into a module?
- By declaring them in the global scope.
- By defining them inside an object literal.
- By placing them in a separate JavaScript file and exporting them using the export keyword.
- By using classes and inheritance.
To organize a group of related functions into a module, you should place them in a separate JavaScript file and export them using the export keyword. This helps maintain code modularity and reusability.
How would you override a method defined in a superclass in Python?
- By creating a new method with the same name in the subclass
- By importing the superclass method
- By renaming the superclass method
- By using the @override decorator
In Python, to override a method defined in a superclass, you create a new method with the same name in the subclass. This new method in the subclass will replace (override) the behavior of the superclass method.