EPAM Interview Experience
Anonymous User
512
Interview

I recently had a Python interview with EPAM and wanted to share the questions in case it helps anyone:

  1. What are decorators? How do multiple decorators work?
def decorator1(func):
    def wrapper(*args, **kwargs):
        print("Decorator 1: Before function call")
        result = func(*args, **kwargs)
        print("Decorator 1: After function call")
        return result
    return wrapper

def decorator2(func):
    def wrapper(*args, **kwargs):
        print("Decorator 2: Before function call")
        result = func(*args, **kwargs)
        print("Decorator 2: After function call")
        return result
    return wrapper

@decorator1
@decorator2
def my_function():
    print("Inside my_function")

my_function()
  1. What is exception handling? Why do we order multiple exceptions in the except block?
    try:
        # Code that might raise exceptions
        value = int("abc")  # This will raise a ValueError
        result = 10 / 0     # This will raise a ZeroDivisionError
    except ValueError as e:
        print(f"Invalid input: {e}")
        # Specific handling for ValueError
    except ZeroDivisionError as e:
        print(f"Cannot divide by zero: {e}")
        # Specific handling for ZeroDivisionError
    except Exception as e:
        print(f"An unexpected error occurred: {e}")
        # Catch-all for any other exceptions (use with caution)
  1. What would happen if you raise exception from error?
def demo_no_catch():
    try:
        raise Exception('general exceptions not caught by specific handling')
    except ValueError as e:
        raise Exception from e
  1. What is multiple inheritence? How would it work if two classes are inherited by a class both of which have the same named method. What would be the output?
class ParentA:
    def common_method(self):
        print("Method from ParentA")

class ParentB:
    def common_method(self):
        print("Method from ParentB")

class Child(ParentA, ParentB):
    pass

child_obj = Child()
child_obj.common_method()
  1. What is context management in Python? How does it work for a Flask app?
  2. How does dependency injection work in flask app with sqlalchemy?
  3. Difference between a monolith and a microservice. When do we use one over the other?
  4. How do we deploy microservices?
  5. How do microservices communicate with each other?
  6. When do we use events?

#EPAM #Python

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