python-if_else_loops_functions

Python - if/else, loops, functions

In this project, I was able to learn about various concepts such as:

• The importance of indentation in Python
• How to use the if, if ... else statements
• How to use comments
• How to add values to variables
• How to use the while and for loops
• How to use the break and continues statements
• How to use range etc.

The project presented a challenge due to the numerous concepts that needed to be covered. However, the experience was also intriguing as I discovered several fascinating concepts in Python.

Function Prototypes 🛠️

Prototypes for functions written in this project:

File	Prototype
7-islower.py	def islower(c):
8-uppercase.py	def uppercase(str):
9-print_last_digit.py	def print_last_digit(number):
10-add.py	def add(a, b):
11-pow.py	def pow(a, b):
12-fizzbuzz.py	def fizzbuzz():
101-remove_char_at.py	def remove_char_at(str, n):
102-magic_calculation.py	def magic_calculation(a, b, c):

Tasks 📃

Task-0: The 0-positive_or_negative.py file contains an update to the source code that prints whether the number stored in the variable number is positive or negative.

Task-1: The 1-last_digit.py file contains an update to the source code that prints the last digit of the number stored in the variable number

Task-2: The 2-print_alphabet.py file contains a program that prints the ASCII alphabet, in lowercase, not followed by a new line.

Task-3: The 3-print_alphabt.py contains a program that prints the ASCII alphabet, in lowercase, not followed by a new line with the exception of q and e

Task-4: The 4-print_hexa.py contain a program that prints all numbers from 0 to 98 in decimal and in hexadecimal (as in the following example)

	guillaume@ubuntu:~/$ ./4-print_hexa.py
	0 = 0x0
	1 = 0x1
	2 = 0x2
	3 = 0x3
	4 = 0x4
	5 = 0x5
	6 = 0x6
	7 = 0x7
	8 = 0x8
	9 = 0x9
	10 = 0xa
	11 = 0xb
	12 = 0xc
	13 = 0xd
	14 = 0xe
	15 = 0xf
	16 = 0x10
	17 = 0x11
	18 = 0x12
	...
	96 = 0x60
	97 = 0x61
	98 = 0x62
	guillaume@ubuntu:~/$

Task-5: The 5-print_comb2.py file contains a program that prints numbers from 0 to 99.

Task-6: The 6-print_comb3.py file contains a program that prints all possible different combinations of two digits with 01 and 10 being considered the same combination of the two digits 0 and 1. The output should be:

	guillaume@ubuntu:~/$ ./6-print_comb3.py
	01, 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 34, 35, 36, 37, 38, 39, 45, 46, 47, 48, 49, 56, 57, 58, 59, 67, 68, 69, 78, 79, 89
	guillaume@ubuntu:~/$ 

Task-7: The 7-islower.py file contains a function that checks for lowercase character.

Task-8: The 7-islower.py file contains a function that checks for lowercase character.

Task-9: The 8-uppercase.py file contains a function that prints a string in uppercase followed by a new line.

Task-10: The 9-print_last_digit.py file contains a function that prints the last digit of a number.

Task-11: The 10-add.py file contains a function that adds two integers and returns the result.

Task-12: The 11-pow.py file contains a function that computes a to the power of b and return the value.

Task-13: The 12-fizzbuzz.py file contains a function that prints the numbers from 1 to 100 separated by a space.

• For multiples of three print Fizz instead of the number and for multiples of five print Buzz.
• For numbers which are multiples of both three and five print FizzBuzz.

Task-14: The 100-print_tebahpla.py file contains a program that prints the ASCII alphabet, in reverse order, alternating lowercase and uppercase (z in lowercase and Y in uppercase) , not followed by a new line.

Task-15: The 101-remove_char_at.py file contains a function that creates a copy of the string, removing the character at the position n (not the Python way, the “C array index”).

Task-16: The 102-magic_calculation.py file contains Python function def magic_calculation(a, b, c): that does exactly the same as the following Python bytecode:

	  3           0 LOAD_FAST                0 (a)
		      3 LOAD_FAST                1 (b)
		      6 COMPARE_OP               0 (<)
		      9 POP_JUMP_IF_FALSE       16

	  4          12 LOAD_FAST                2 (c)
		     15 RETURN_VALUE

	  5     >>   16 LOAD_FAST                2 (c)
		     19 LOAD_FAST                1 (b)
		     22 COMPARE_OP               4 (>)
		     25 POP_JUMP_IF_FALSE       36

	  6          28 LOAD_FAST                0 (a)
		     31 LOAD_FAST                1 (b)
		     34 BINARY_ADD
		     35 RETURN_VALUE

	  7     >>   36 LOAD_FAST                0 (a)
		     39 LOAD_FAST                1 (b)
		     42 BINARY_MULTIPLY
		     43 LOAD_FAST                2 (c)
		     46 BINARY_SUBTRACT
		     47 RETURN_VALUE