A program is intended to print all even numbers between 1 to 10 but instead, it prints all numbers between 1 to 10. What control structure might be missing or misused?
- Conditional Statement
- For Loop
- Range Function
- While Loop
If a program is printing all numbers between 1 to 10 instead of just even numbers, a conditional statement might be missing or misused. Conditional statements are used to specify different actions based on certain conditions, and they are essential for filtering and printing even numbers in this case.
You have a program that checks for a user's age to determine the price of a movie ticket. How would you structure the conditional statements to determine if a user gets a discount based on their age?
- if age < 10 or age > 65:
- if age == 10 or age == 65:
- if age > 10 and age < 65:
- if age >= 10 and age <= 65:
To determine if a user gets a discount based on age, you should use 'if' statements with logical OR operators. This way, you can identify both children under 10 and seniors above 65 who are eligible for a discount.
In the context of method overloading, what does the *args syntax in Python signify?
- It represents default argument values
- It represents keyword arguments in a function signature
- It signifies that the function accepts a variable-length non-keyword argument list
- It signifies that the function cannot accept any arguments
In Python, the *args syntax in a function signature indicates that the function accepts a variable-length non-keyword argument list. This allows you to pass a varying number of positional arguments to the function. It's commonly used in method overloading to handle multiple argument scenarios.
What happens if the base class method is private, and you try to override it in a derived class?
- Compilation error
- The base class method is called
- The derived class method is overridden
- The derived class method is private
If the base class method is private, it cannot be overridden in the derived class. Attempting to do so will result in a compilation error, as private methods are not accessible outside the class.
Which of the following decorators is used to define a setter method for a property in Python?
- @getter
- @property
- @setter
- @setter and @getter
The @property decorator is used to define a getter method for a property. To define a setter, you would use @.setter.
Which built-in function in Python can be used to get the data type of an object?
- dtype()
- type()
- typeof()
- typeofobject()
The type() function is used to determine the data type of an object in Python. It returns a type object, which represents the data type of the given object.
How can you secure a RESTful API developed using Python?
- Allowing unrestricted access to the API
- Including sensitive data in API responses
- Storing API keys in public repositories
- Using HTTPS for data encryption
To secure a RESTful API, you should use HTTPS to encrypt data in transit, protecting it from eavesdropping and man-in-the-middle attacks. The other options are insecure practices that should be avoided.
How can you secure sensitive information, like API keys, in a Flask or Django application?
- Include them directly in the HTML templates.
- Store them in cookies.
- Store them in plaintext within the source code.
- Use environment variables to store them and access via os module.
Sensitive information like API keys should never be stored in plaintext within the source code because it can be easily exposed. Using environment variables to store such information and accessing them via the os module is a secure practice.
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.