TUPLES AS RETURN VALUES - Pyt……
TUPLES AS RETURN VALUES
Python function-ல் ஒரே ஒரு value மட்டும் return செய்ய வேண்டும் என்ற rule இல்லை. ஒரு function: def student(): return "Arun", 85 இப்படி multiple values return செய்யலாம். இந்த: return "Arun", 85 Python-ல் conceptually: return ("Arun", 85) அதா…
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47 programs 7 MCQs v4
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Definition
Python function-ல் ஒரே ஒரு value மட்டும் return செய்ய வேண்டும் என்ற rule இல்லை. ஒரு function: def student(): ……
Simple Explanation
Normal function: def add(): return 10 இது ஒரு value return செய்கிறது. 10 ஆனால்: def student(): return "Ravi",……
Flow
Basic flow
def get_values(): return 10, 20 Function call:……
Syntax
Basic syntax
Syntax
Call
Explanation
or tuple unpacking: a, b = fu……
Program
Program 1
Explanation
def get_numbers(): get_numbers() என்ற function create செய்கிறோம். return 10, 20 இங்கு 10 and 20 return செய்கி……
Explanation
Execution: get_numbers() called ↓ return 10, 20 ↓ Pyt……
Explanation
Check type
def get_data(): return 100, 2……
This proves function returns ……
Explanation
Tuple packing in return
Consider: return 10, 20, 30 Right side contains comma-separated values. Pytho……
Explanation
Parentheses optional
Both are valid: def test(): return 10……
Important
Tuple உருவாக parentheses முக்……
Explanation
Return value unpacking
Function tuple return செய்தால்……
Program
Example
Explanation
name, mark = get_data()…
Explanation
How unpacking works
Function: def get_data(): return "Raja", 80 Returns: ("Raja", 80) Then: name……
Explanation
Packing and unpacking
இந்த concept மிகவும் important. Function side: return "Raja", 80 Here: PACKING Caller side: name, mark = get_……
Explanation
return name, age, mark…
Explanation
Return directly to variables
Same function: def student(): name = "Kumar" age = 20 mark……
Explanation
Line by line explanation
def student(): Function definition. name = "Kumar" Local variable name. age = 20 Local variable age. mark = 9……
Explanation
Why use tuple return values
Suppose ஒரு function இரண்டு r……
Comparison
difference
இரண்டும் தேவை. Instead of creating two separate functions: def add(a, b): return a + b def subtract(a, b): ……
Program
Program 3 calculation
Explanation
return addition, subtraction ……
Dry Run
Dry run calculation
Function call: calculate(30, 10) Parameters: a = 30 b = 10 Calculation: addition = 30 + 10……
Explanation
Multiple calculations
A function can return many calculated results. def operations(a, b): return a + b, ……
Explanation
Return quotient and remainder
Very common example: Division செய்யும்போது: Quotient Remainder இரண்டும் return செய்ய……
Explanation
17 // 5 = 3 17 % 5 = 2 Return……
Real Life Example
Built in example divmod
Python-ல் இதே concept use செய……
Program
Example
Program
Check
Explanation
Divmod unpacking
q, r = divmod(17, 5) print(q)……
Program
Here
Program
Example
Explanation
small, large = find_values([1……
Returned tuple: (2, 50)…
Explanation
Average and total
def marks(m1, m2, m3): total = m1 + m2 + m3 average = t……
Real Life Example
Real time example
Student result function: def result(m1, m2, m3): total = m1 + m2 + m3 average = total / 3 if average >=……
One function returns: Total A……
Explanation
Returning different data types
Tuple return values எல்லாம் same datatype இருக்க வேண்டிய அவசியம் இல்லை. d……
Explanation
name, age, mark, passed = stu……
Explanation
Return value as single variable
Function return tuple-ஐ unpac……
Program
Example
Program
Now tuple indexing பயன்படுத்தலாம்
Explanation
Two ways to receive
Function: def get_data(): return 1……
Output
Result
Program
Access
Output
Result
Both are valid.…
Comparison
Entire Tuple result = get_dat……
Output
Result
Access through indexing: resu……
Output
Result
Access directly using variabl……
Important
Important count rule
Returned values count and receiving variables count normally equal ……
Common Mistake
Common error 1
def test(): return 10, 20, 30 a, b = test(……
Common Mistake
Error
ValueError: too many values t……
Common Mistake
Common error 2
def test(): return 10, 20 a, ……
Common Mistake
Error
ValueError: not enough values……
Explanation
Star unpacking
Function நிறைய values return செய்தால் starred unpacking u……
Important
*b remaining values-ஐ list-ஆக……
Explanation
Star in middle
def numbers(): return 10, 20, 30, ……
Flow: Returned: (10, 20, 30, ……
Explanation
Ignore return value
Function சில values return செய்……
Program
Example
Explanation
name, _, mark = student()…
Here: 20 தேவையில்லை. Conventi……
Explanation
Returning nested tuple
Function nested tuple return செய்யலாம். d……
Nested unpacking: name, (m1, ……
Explanation
Return statement stops function
Important return concept: Once return executed, func……
print("Hello") execute ஆகாது.……
Explanation
Return without value
If: def test(): return Then r……
Program
Example
This is different from return……
Explanation
Empty tuple return
This: def test(): return () returns: () which is……
Explanation
Single item tuple return
Very important exam concept. Suppose: d……
Because: (10) is only grouped ……
Program
Now
Remember
return (10) returns: 10 Type: int But: retu……
Comparison
Function return vs print
Students commonly confuse ret……
Program
Example
Explanation
This displays values, but doe……
Explanation
x becomes: None Correct retur……
Program
Now
Explanation
x becomes: ('Ravi', 90)…
Comparison
Return vs print comparison
Program
Example
Explanation
does not return tuple. But:…
Explanation
returns: (10, 20)…
Explanation
Function composition use
Tuple returns can be passed t……
Program
Example
Flow: get_numbers() ↓ (10, 20……
Explanation
Better unpacking version
def get_numbers(): return 10, 20 def a……
Explanation
Real world use cases
Tuples as return values மிகவும் useful when function needs to return related information. Examples: Student: ……
Explanation
Advantages
Tuples as return values use செய்தால்: Multiple related values ஒரே function-ல் return செய்யலாம். Multiple sepa……
Comparison
Comparison with list
Function tuple return: def te……
Output
Result
Tuple is immutable. Function ……
Output
Result
List is mutable.…
Comparison
Difference
Important
return a, b means: return (a, b) not: return two independent objects s……
Remember
Function says: return a, b, c Python does: PACK → (a, b, c) Calle……
TRB Point
Question
def fun(): return 10, 20 x = fun() print(type(x)) ……
TRB Point
Trb point 2
def fun(): return 1, 2, 3 a, ……
TRB Point
Trb point 3
def fun(): return (10) print(type(fun())) An……
TRB Point
Trb point 4
What is returned by: def fun(……
TRB Point
Trb point 5
def fun(): return 1, 2 a, b, ……
Output
Result
Reason: 2 returned elements b……
Interview Point
Question
Does Python really return multiple values from a function? Best answer: Technically, Python function returns ……
Interview Point
Interview point 2
What is the difference between: result = fun() and: a, b = fun()……
Common Mistake
Wrong assumption: return a, b means two separate retur……
MCQ
What is the output? def fun()……
MCQ
What is the type? def fun(): ……
MCQ
What is the output? def fun()……
MCQ
What happens? def fun(): retu……
MCQ
What is the output? def fun()……
Mcq 6
Which creates a one-element tuple? A) return (……
MCQ
What is the value of b? def f……
MCQ
What does this function retur……
Practice
Practice 1
Predict: def get(): return 10……
Practice
Practice 2
Predict: def get(): return "A……
Practice
Practice 3
Predict: def calculate(x, y): return ……
Practice
Practice 4
Predict: def test(): return 1, 2,……
Summary
Tuples as Return Values என்பது Python f……
Program
Example
Explanation
Actually returns: ("Ravi", 90……
Explanation
or unpack: name, mark = stude……
Explanation
Most important exam statement: Python function appears t……
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