Q1: What is a list in Python? A1: A list is a built-in data structure in Python that can hold an ordered collection of items.
Q2: How do you define an empty list in Python? A2: You can define an empty list by using empty brackets: [].
Q3: How do you access an element in a list? A3: You can access an element in a list by using its index. The index starts at 0.
Q4: How do you add an element to the end of a list? A4: You can use the append() method to add an element to the end of a list.
Q5: How do you add an element at a specific position in a list? A5: You can use the insert() method to add an element at a specific position in a list.
Q6: How do you remove an element from a list? A6: You can use the remove() method to remove an element from a list by specifying its value.
Q7: How do you remove an element at a specific index in a list? A7: You can use the pop() method to remove an element at a specific index in a list.
Q8: How do you check if an element exists in a list? A8: You can use the in keyword to check if an element exists in a list.
Q9: How do you find the length of a list? A9: You can use the len() function to find the length of a list.
Q10: How do you sort a list in ascending order? A10: You can use the sort() method to sort a list in ascending order.
Q11: How do you sort a list in descending order? A11: You can use the sort() method with the reverse=True parameter to sort a list in descending order.
Q12: How do you reverse the order of elements in a list? A12: You can use the reverse() method to reverse the order of elements in a list.
Q13: How do you count the occurrences of an element in a list? A13: You can use the count() method to count the occurrences of an element in a list.
Q14: How do you create a copy of a list? A14: You can use the copy() method or the slicing technique to create a copy of a list.
Q15: How do you concatenate two lists? A15: You can use the + operator to concatenate two lists.
Q16: How do you iterate over elements in a list? A16: You can use a for loop to iterate over elements in a list.
Q17: How do you check if all elements in a list satisfy a condition? A17: You can use the all() function with a conditional expression to check if all elements satisfy a condition.
Q18: How do you check if any element in a list satisfies a condition? A18: You can use the any() function with a conditional expression to check if any element satisfies a condition.
Q19: How do you convert a list to a string? A19: You can use the join() method to convert a list to a string.
Q20: How do you clear all elements from a list? A20: You can use the clear() method to remove all elements from a list.