JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II Year PYTHON PROGRAMMING Previous Question Paper (March - 2022 - R18)

Python provides a comprehensive set of built-in functions that are always available for use without needing to import any modules. These functions perform common tasks such as type conversion, mathematical operations, and sequence manipulation.

• Type Conversion Functions: Used to change data types. Examples include

  int()

  ,

  float()

  ,

  str()

  , and

  list()

  . Example: int('10') converts a string to an integer.
• Mathematical Functions: Functions like

  abs()

  (absolute value),

  max()

  (maximum value),

  min()

  (minimum value), and

  pow()

  (exponentiation). Example: max(1, 5, 3) returns 5.
• Input/Output Functions:

  print()

  displays output to the console, while

  input()

  captures user input as a string.
• Sequence/Collection Functions:

  len()

  returns the length of an object,

  sum()

  calculates the total of an iterable, and

  sorted()

  returns a new sorted list. Example: len([1, 2, 3]) returns 3.
• Utility Functions:

  type()

  returns the data type of an object, and

  id()

  returns the unique memory address of an object.

Lists and Tuples are both sequence data types in Python, but they differ significantly in mutability and performance.

[]

()

Example:

# List: Mutable
my_list = [1, 2, 3]
my_list[0] = 10  # Valid

# Tuple: Immutable
my_tuple = (1, 2, 3)
# my_tuple[0] = 10 # Raises TypeError