Python: Print Fizz, Buzz and FizzBuzz using itertools module

Last update on May 28 2022 13:00:16 (UTC/GMT +8 hours)

Python Itertools: Exercise-19 with Solution

Write a Python program which iterates the integers from 1 to a given number and print "Fizz" for multiples of three, print "Buzz" for multiples of five, print "FizzBuzz" for multiples of both three and five using itertools module.

Sample Solution:

Python Code:

#Source:https://bit.ly/30PS62m
import itertools as it
 
def fizz_buzz(n):
    fizzes = it.cycle([""] * 2 + ["Fizz"])
    buzzes = it.cycle([""] * 4 + ["Buzz"])
    fizzes_buzzes = (fizz + buzz for fizz, buzz in zip(fizzes, buzzes))
    result = (word or n for word, n in zip(fizzes_buzzes, it.count(1)))
    for i in it.islice(result, 100):
        print(i)

n = 50
fizz_buzz(n)

Sample Output:

1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz
16
17
Fizz
19
Buzz
Fizz
22
23
Fizz
Buzz
26
Fizz
28
29
FizzBuzz
31
32
Fizz
34
Buzz
Fizz
37
38
Fizz
Buzz
41
Fizz
43
44
FizzBuzz
46
47
Fizz
49
Buzz
Fizz
52
53
Fizz
Buzz
56
Fizz
58
59
FizzBuzz
61
62
Fizz
64
Buzz
Fizz
67
68
Fizz
Buzz
71
Fizz
73
74
FizzBuzz
76
77
Fizz
79
Buzz
Fizz
82
83
Fizz
Buzz
86
Fizz
88
89
FizzBuzz
91
92
Fizz
94
Buzz
Fizz
97
98
Fizz
Buzz

Python Code Editor:

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Previous: Write a Python program to generate permutations of n items in which successive permutations differ from each other by the swapping of any two items.
Next: Write a Python program to find the factorial of a number using itertools module.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

The os and os.path modules.
The __file__ constant
os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
os.path.dirname(path) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m