PythonScripts

1.Function to Get Middle Characters from a String Code:

def printMiddleCharacter(input_str, num_chars): middle_index = len(input_str) // 2 first_char = middle_index - num_chars // 2 last_char = first_char + num_chars

if num_chars >= 1:
    middle_chars = input_str[first_char:last_char]
    print(f'Middle {num_chars} characters are: {middle_chars}')
else:
    print(f'Invalid number of middle characters: {num_chars}')

input_str = "pythonscripts" num_chars = 5 printMiddleCharacter(input_str, num_chars)

Example Usage:

2. Merge List with Given Conditions def mergeLists(list1, list2): divisible_by_5 = [num for num in list1 if num % 5 == 0] divisible_by_2 = [num for num in list2 if num % 2 == 0] merged_list = divisible_by_5 + divisible_by_2 return merged_list

def mergeListDescendingOrder(merged_list): merged_list.sort(reverse=True) return merged_list

list1 = [10, 50, 21, 46, 35] list2 = [58, 88, 76, 100, 65]

merged_list = mergeLists(list1, list2) print("Merged_List:", merged_list)

merged_list_desc = mergeListDescendingOrder(merged_list) print("Merged_List_Desc:", merged_list_desc)

Example Usage:

3.Python Class to Display Employee Details

Code: class Person: def init(self, first_name, middle_name, last_name, gender): self.first_name = first_name self.middle_name = middle_name self.last_name = last_name self.gender = gender

def display_person(self):
    return f'First Name: {self.first_name}\nMiddle Name: {self.middle_name}\nLast Name: {self.last_name}\nGender: {self.gender}'

person1 = Person("Jaffer", "Tom", "Scott", "Male") person2 = Person("Janny", "Doe", "Marek", "Female")

print("Person1 attributes:") print(person1.display_person())

print("Person2 attributes:") print(person2.display_person())

Example Usage:

4.Load Data from CSV File and Display Employee Details

import csv

def display_employee_details(): with open("Employee_Details.csv") as file: reader = csv.reader(file) for row in reader: print(row) display_employee_details()

Example Usage:

5.Function to Retrieve JSON Key Values

import json

def retrieve_key_values(json_input, key_name): values = [] for item in json_input: if key_name in item: values.append(item[key_name]) return values json_input = [{"ProductID": "1", "ProductName": "Car"}, {"ProductID": "2", "ProductName": "Bus"}]

key_name_1 = "ProductID" key_values_1 = retrieve_key_values(json_input, key_name_1) print(f"{key_name_1} values:", key_values_1)

key_name_2 = "ProductName" key_values_2 = retrieve_key_values(json_input, key_name_2) print(f"{key_name_2} values:", key_values_2)

def write_data_to_txt_file(data): file_exists = True # Check if the file exists, change to False if the file does not exist mode = "a" if file_exists else "w" with open("data.txt", mode) as file: file.write(data) file.write('\n') print("Data saved successfully.")

data_to_write = "Hello, this is sample data." write_data_to_txt_file(data_to_write)