Python Practice Problems

Python practice problems help beginners to become experts in a python programming language with a small amount of practice effort.

Remove duplicates from a tuple

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Python Practice › Tuple Programs › Program 50

Remove duplicates from a tuple

EasyTuple Programs · 50 of 70

Write a Python program to remove duplicates from a tuple, keeping the order.

Input
(6, 4, 9, 0, 2, 6, 1, 3, 4)
Output
(6, 4, 9, 0, 2, 1, 3)

Approach

  1. tuple(dict.fromkeys(t)).

Solution

Python
print(tuple(dict.fromkeys((6, 4, 9, 0, 2, 6, 1, 3, 4))))
Output
(6, 4, 9, 0, 2, 1, 3)

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More tuple programs

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Tuples with no negative elements

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Python Practice › Tuple Programs › Program 49

Tuples with no negative elements

EasyTuple Programs · 49 of 70

Write a Python program to find tuples whose elements are all zero or positive.

Input
[(1, 7), (-4, -5), (0, 6), (-1, 3)]
Output
[(1, 7), (0, 6)]

Approach

  1. all(x >= 0 for x in t).

Solution

Python
data = [(1, 7), (-4, -5), (0, 6), (-1, 3)]print([t for t in data if all(x >= 0 for x in t)])
Output
[(1, 7), (0, 6)]

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More tuple programs

#50EasyRemove duplicates from a tuple#51EasyUnique digits from tuples#52EasyMultiply the ith element of each tuple#53EasyFlatten a list of lists into a tuple

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Tuples with a negative element

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Python Practice › Tuple Programs › Program 48

Tuples with a negative element

EasyTuple Programs · 48 of 70

Write a Python program to find tuples that contain at least one negative number.

Input
[(1, 7), (-4, -5), (0, 6), (-1, 3)]
Output
[(-4, -5), (-1, 3)]

Approach

  1. any(x < 0 for x in t).

Solution

Python
data = [(1, 7), (-4, -5), (0, 6), (-1, 3)]print([t for t in data if any(x < 0 for x in t)])
Output
[(-4, -5), (-1, 3)]

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More tuple programs

#49EasyTuples with no negative elements#50EasyRemove duplicates from a tuple#51EasyUnique digits from tuples#52EasyMultiply the ith element of each tuple

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Tuples whose items are all divisible by 5

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Python Practice › Tuple Programs › Program 47

Tuples whose items are all divisible by 5

EasyTuple Programs · 47 of 70

Write a Python program to find the tuples whose elements are all divisible by a number.

Input
[(10, 5, 15), (25, 6, 35), (20, 10)], number 5
Output
[(10, 5, 15), (20, 10)]

Approach

  1. all(x % k == 0 for x in t).

Solution

Python
data = [(10, 5, 15), (25, 6, 35), (20, 10)]k = 5print([t for t in data if all(x % k == 0 for x in t)])
Output
[(10, 5, 15), (20, 10)]

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More tuple programs

#48EasyTuples with a negative element#49EasyTuples with no negative elements#50EasyRemove duplicates from a tuple#51EasyUnique digits from tuples

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List of tuples to list of lists

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Python Practice › Tuple Programs › Program 46

List of tuples to list of lists

EasyTuple Programs · 46 of 70

Write a Python program to convert a list of tuples into a list of lists.

Input
[(1, 5), (7, 8), (4, 0)]
Output
[[1, 5], [7, 8], [4, 0]]

Approach

  1. list(t) for each tuple.

Solution

Python
print([list(t) for t in [(1, 5), (7, 8), (4, 0)]])
Output
[[1, 5], [7, 8], [4, 0]]

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More tuple programs

#47EasyTuples whose items are all divisible by 5#48EasyTuples with a negative element#49EasyTuples with no negative elements#50EasyRemove duplicates from a tuple

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Element-wise sum of tuples

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Python Practice › Tuple Programs › Program 45

Element-wise sum of tuples

EasyTuple Programs · 45 of 70

Write a Python program to add several tuples element by element.

Input
(1, 6, 7), (4, 3, 0), (2, 6, 8)
Output
(7, 15, 15)

Approach

  1. zip(*tuples) groups items by position; sum each group.

Solution

Python
tuples = [(1, 6, 7), (4, 3, 0), (2, 6, 8)]print(tuple(sum(column) for column in zip(*tuples)))
Output
(7, 15, 15)

Line by line

Line 2

zip(*tuples) gives (1, 4, 2), (6, 3, 6) and (7, 0, 8).

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More tuple programs

#46EasyList of tuples to list of lists#47EasyTuples whose items are all divisible by 5#48EasyTuples with a negative element#49EasyTuples with no negative elements

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Tuple of digits to a number

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Python Practice › Tuple Programs › Program 44

Tuple of digits to a number

EasyTuple Programs · 44 of 70

Write a Python program to convert a tuple of digits into a number.

Input
(4, 5, 3, 8)
Output
4538

Approach

  1. Build the number with n * 10 + digit.

Solution

Python
number = 0for d in (4, 5, 3, 8):    number = number * 10 + dprint(number)
Output
4538

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#45EasyElement-wise sum of tuples#46EasyList of tuples to list of lists#47EasyTuples whose items are all divisible by 5#48EasyTuples with a negative element

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Tuple of strings to integers

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Python Practice › Tuple Programs › Program 43

Tuple of strings to integers

EasyTuple Programs · 43 of 70

Write a Python program to convert a tuple of numeric strings to integers, ignoring stray commas.

Input
("4563", "68", "1,")
Output
(4563, 68, 1)

Approach

  1. Strip the commas, then int() each value.

Solution

Python
t = ("4563", "68", "1,")print(tuple(int(s.replace(",", "")) for s in t))
Output
(4563, 68, 1)

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More tuple programs

#44EasyTuple of digits to a number#45EasyElement-wise sum of tuples#46EasyList of tuples to list of lists#47EasyTuples whose items are all divisible by 5

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String to a tuple of characters

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Python Practice › Tuple Programs › Program 42

String to a tuple of characters

EasyTuple Programs · 42 of 70

Write a Python program to convert a string into a tuple of characters.

Input
"Sqatools"
Output
('S', 'q', 'a', 't', 'o', 'o', 'l', 's')

Approach

  1. tuple(text).

Solution

Python
print(tuple("Sqatools"))
Output
('S', 'q', 'a', 't', 'o', 'o', 'l', 's')

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More tuple programs

#43EasyTuple of strings to integers#44EasyTuple of digits to a number#45EasyElement-wise sum of tuples#46EasyList of tuples to list of lists

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Product of a tuple

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Python Practice › Tuple Programs › Program 41

Product of a tuple

EasyTuple Programs · 41 of 70

Write a Python program to multiply all the elements of a tuple.

Input
(5, 4, 3, 1)
Output
60

Approach

  1. math.prod().

Solution

Python
import mathprint(math.prod((5, 4, 3, 1)))
Output
60

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More tuple programs

#42EasyString to a tuple of characters#43EasyTuple of strings to integers#44EasyTuple of digits to a number#45EasyElement-wise sum of tuples

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