Python Function Arguments

1) Positional Arguments

Write a function add(a, b) that returns the sum of two numbers. Call it with user input values.

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2) Keyword Arguments

Define info(name, age) that prints:

Name: <name>, Age: <age>

Call it using keyword arguments.

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3) Default Argument

Write greet(name, msg="Hello") that prints:

<msg>, <name>!

Call it with and without msg.

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4) Mixed Arguments

Write describe(name, age=18) that prints a line. Call it once with only name and once with both.

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*5) Function with args

Write sum_all(*nums) that returns the sum of all numbers passed.

Test with 3, 5, and 7 values.

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**6) Function with kwargs

Write print_info(**data) that prints keys and values.

Call it with:

print_info(city="Delhi", country="India")

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7) Positional Only (Basic)

Write multiply(x, y) — both must be positional. Call it normally.

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8) Return Product

Create product(*nums) that returns product of all numbers.

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9) Keyword Argument Order

Write book_info(title, author) and call it with keywords in swapped order.

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10) Function with Optional Argument

Write display(msg=None). If msg is None, print:

No message provided

else print msg.

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11) Filtering Args

Write filter_even(*nums) that returns only even numbers.

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*12) Combining Positional and args

Write first_and_rest(first, *rest) that prints the first value and list of remaining.

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13) Sum and Count

Write stats(*nums) that returns a tuple with (sum, count of numbers).

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14) Greet Multiple People

Write greet_all(*names) that prints:

Hello <name>!

for each.

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*15) Setting Defaults and args

Write info(name, *args, gender="Not specified") and print all values passed.

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**16) Keyword Only After *

Write:

def details(name, *, age)

This forces age to be passed as a keyword.

Call it correctly.

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17) Combine args and kwargs

Write show(*args, **kwargs) that prints both.

Test with:

show(1,2, a=3, b=4)

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18) Swap Arguments

Write function swap(a, b) that returns (b, a). Call with user inputs.

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19) Greeting with Formality

Write greet(name, formal=False). If formal is True:

Good day, <name>.

Else:

Hi <name>!

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20) Sum of List with Default

Write:

def sum_list(nums=None)

If nums is None, print 0, else sum.

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📝 Topics Practiced

✔ Positional arguments ✔ Keyword arguments ✔ Default arguments ✔ Variable positional *args ✔ Variable keyword **kwargs ✔ Combination of the above

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👩‍💻 Example Template

*Sum with args

def sum_all(*nums):
    total = 0
    for n in nums:
        total += n
    return total

print(sum_all(1,2,3))  # 6

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canvil: 333f6c7d-6876-4f7e-b6ad-1bdb2233f5c1