#1032 - Argparser calculator

BasicPythonScripts/CLI Calculator/.gitignore

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+*/__pycache__

BasicPythonScripts/CLI Calculator/README.md

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+# CLI Calculator
+
+## Aim
+
+Calculator via CLI made with Python built-in Argparser
+
+
+## Purpose
+
+Learn tests and Python Argparser
+
+
+## Short description of package/script
+
+To run CLI Calculator execute:
+
+- `python calc/args.py --help` - For help
+- `python calc/args.py --sum x y` - To sum two numbers
+- `python calc/args.py --sub x y` - To subtract  two numbers
+- `python calc/args.py --mult x y` - To multiply two numbers
+- `python calc/args.py --div x y` - To divide two numbers
+
+
+To run tests execute:
+```shell
+python -m unittest discover tests
+```
+
+
+## Workflow of the Project
+
+You can execute `python calc/args.py --help` to check all available commands
+
+
+## Setup instructions
+
+This project is using a Python built-in library, no external package is needed
+
+
+## Compilation Steps
+
+This project doesn't need to be compiled.
+
+
+## Output
+
+**Sum function**
+![calc_argparser](./calc_argparser.png)
+
+**Help**
+![calc_argparser_help](./calc_argparser_helper.png)
+
+
+## Conclusion
+
+This project helped me to know new functionalities of Python and understand the unittest skeleton
+
+
+## Author(s)
+
+Willian Lopes
+
+
+## Disclaimers, if any
+
+Use this section to mention if any particular disclaimer is required

BasicPythonScripts/CLI Calculator/calc/__init__.py

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+from .calc import sub, mult, div, sum_
+
+__all__ = ['sub', 'mult', 'div', 'sum_']

BasicPythonScripts/CLI Calculator/calc/args.py

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+"""CLI Calculator using ArgumentParser."""
+
+from argparse import ArgumentParser
+
+from calc import sum_, sub, mult, div
+
+
+parser = ArgumentParser(description='Calculator')
+
+parser.add_argument('--sum', help='Sum operation', action='store_true')
+parser.add_argument('--sub', help='Subtraction operation', action='store_true')
+parser.add_argument('--mult', help='Multiplication operation', action='store_true')
+parser.add_argument('--div', help='Division operation', action='store_true')
+parser.add_argument('x', type=int, help='First value')
+parser.add_argument('y', type=int, help='Second value')
+
+args = parser.parse_args()
+
+if args.sum:
+    print(f'{sum_(args.x, args.y)}')
+
+if args.sub:
+    print(f'{sub(args.x, args.y)}')
+
+if args.mult:
+    print(f'{mult(args.x, args.y)}')
+
+if args.div:
+    print(f'{div(args.x, args.y)}')

BasicPythonScripts/CLI Calculator/calc/calc.py

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+
+
+def sum_(x: int, y: int) -> int:
+    """Sum function."""
+    return x + y
+
+
+def sub(x: int, y: int) -> int:
+    """Substration function."""
+    return x - y
+
+
+def mult(x: int, y: int) -> int:
+    """Multiplication function."""
+    return x * y
+
+
+def div(x: int, y: int) -> int:
+    """Division function."""
+    try:
+        return x / y
+
+    except ZeroDivisionError:
+        return "Division by zero isn't possible!!"

BasicPythonScripts/CLI Calculator/tests/test_calc.py

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+from unittest import TestCase
+
+from calc import soma, sub, mult, div
+
+
+class testCalc(TestCase):
+    def test_should_return_two_values_sum(self):
+        esperado = 1 + 2
+        self.assertEqual(esperado, soma(1,2))
+
+
+    def test_should_return_two_values_sub(self):
+        esperado = 1 - 2
+        self.assertEqual(esperado, sub(1,2))
+
+
+    def test_should_return_two_values_mult(self):
+        esperado = 1 * 2
+        self.assertEqual(esperado, mult(1,2))
+
+    def test_should_return_two_values_div(self):
+        esperado = 1 / 2
+        self.assertEqual(esperado, div(1,2))
+
+
+    def test_should_return_exceptio_on_division_by_zero(self):
+        esperado = 'Divisao por zero mal sucedida!!'
+        self.assertEqual(esperado, div(1,0))

BasicPythonScripts/README.md

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 - [Stock Visualizer](https://github.com/prathimacode-hub/Awesome_Python_Scripts/tree/main/BasicPythonScripts/Stock%20Visualiser)
 - [Stone Paper Pencil Rubber Scissor](https://github.com/prathimacode-hub/Awesome_Python_Scripts/tree/main/BasicPythonScripts/Stone%20Paper%20Pencil%20Rubber%20Scissor)
 - [Word Cloud](https://github.com/prathimacode-hub/Awesome_Python_Scripts/tree/main/BasicPythonScripts/Word%20Cloud)
-
-
+- [CLI Calculator](https://github.com/prathimacode-hub/Awesome_Python_Scripts/tree/main/BasicPythonScripts/CLI%20Calculator)