Python Operator Precedence Precedence Operator Description 1 () Parentheses 2 ** Exponentiation 3 +x, -x, ~x Unary plus, Unary minus, Bitwise NOT 4 *, /, //, % Multiplication, Division, Floor division, Modulus 5 +, – Addition, Subtraction 6 <<, >> Bitwise shift operators 7 & Bitwise AND 8 ^ Bitwise XOR 9 | Bitwise OR …
Python Terminology Differences Terms Definitions Examples Default Arguments Values that are set in the function definition and used if no argument value is passed during the function call. def greet(name=”User”): print(f”Hello, {name}”) greet() # Outputs: Hello, User greet(“Alice”) # Outputs: Hello, Alice Keyword Arguments Arguments that are identified by their parameter name when passed during …
LEGB Rule in Python Local Scope: Variables defined within a function are said to have local scope. That means they can only be accessed within that function. Enclosing Scope: In Python, functions can be defined within other functions. If a variable is not defined in the inner function (local scope) it will be looked for …
Q1: Why is a dictionary termed as an unordered collection of objects? A1: Dictionaries in Python are termed as unordered collections because they do not maintain any order of their elements based on how they are inserted. The order of items in a dictionary is determined by a process known as “hashing”, which allows for …
Q1: Discuss the utility and significance of Tuples, briefly. A1: Tuples in Python are a type of data structure that are used to hold multiple objects or values in a single variable. They are similar to lists but are immutable, meaning their content cannot be changed after they are created. This immutability can be useful …
Q1: In the Python shell, do the following… A1: Here is a simple Python script that accomplishes this: # (i) Define a variable named states that is an empty list. states = [] # (ii) Add ‘Delhi’ to the list. states.append(‘Delhi’) # (iii) Now add ‘Punjab’ to the end of the list. states.append(‘Punjab’) # (iv) …
Q1: What’s a[1:1] if a is a string of at least two characters? And what if string is shorter? A1: In Python, when you use slicing, the start index is inclusive and the end index is exclusive. So, if `a` is a string of at least two characters, `a[1:1]` will be an empty string because …
Q1: What do you understand by mutability? What does “in place” task mean? A1: Mutability refers to the capability of an object (like a list or dictionary in Python) to be changed after it is created. If an object can be changed, then it is called mutable. Conversely, if an object cannot be changed, it …
Q1: What is the internal structure of Python strings? A1: Python strings are sequences of Unicode characters, i.e., an ordered collection of characters. This means they maintain a left-to-right positional ordering among the characters. Each character in a string has a unique index, with the first character having an index of 0. Python strings are …
Q1: How are floating constants represented in Python? Give examples to support your answer. A1: Floating constants, or floating-point numbers, are represented in Python by including a decimal point in the number. Python allows for a compact representation of floating-point numbers when the numbers are too large or too small. This is done using scientific …
