Python Basics Quiz I

What are the basic data types in Python?

• string, number, boolean, object

• char, list, tuple, dict

• int, float, array, set

• int, float, str, bool

How do you declare a variable in Python?

• var variable_name = value

• You declare a variable in Python by using the syntax: variable_name = value.

• let variable_name = value

• variable_name : value

What is the difference between a list and a tuple in Python?

• Lists can contain only numbers, while tuples can contain any data type.

• The main difference is that lists are mutable and tuples are immutable.

• Tuples are created using square brackets, while lists use parentheses.

• Lists are faster than tuples in all operations.

What control structure would you use to execute code repeatedly?

• Variable

• Condition

• Loop

• Function

How do you create a dictionary in Python?

• You must use parentheses to create a dictionary, e.g., ('key', 'value')

• Dictionaries can only be created with the list() function.

• You can create a dictionary using square brackets, e.g., ['key': 'value']

• You can create a dictionary in Python using curly braces, e.g., {'key': 'value'}, or using the dict() function.

What is the purpose of the 'if' statement in Python?

• To define a function in Python.

• To import modules in Python.

• To execute code conditionally based on a boolean expression.

• To create a loop in Python.

How do you convert a string to an integer in Python?

• Use eval(string) to evaluate the string as an expression.

• Apply float(string) to convert a string to a float.

• Use int(string) to convert a string to an integer.

• Use str(int) to convert an integer to a string.

What is a boolean data type in Python?

• The boolean data type in Python is a type that can hold one of two values: True or False.

• A boolean data type can hold multiple values like integers and strings.

• Boolean values in Python are represented as 0 and 1.

• The boolean data type in Python is a complex data structure.

Explain the use of 'for' loops in Python.

• 'for' loops are used to create classes in Python.

• 'for' loops are used to define functions in Python.

• 'for' loops can only iterate over numbers in Python.

• 'for' loops in Python are used to iterate over sequences or iterables, executing a block of code for each element.

What is the difference between '==' and 'is' in Python?

• The '==' operator checks for value equality, while 'is' checks for object identity.

• '==' is used for comparing strings, while 'is' is used for comparing numbers.

• Both '==' and 'is' check for value equality.

• '==' checks for object identity, while 'is' checks for value equality.