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01-text.py

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# 1: Open the file in read mode

with open('example.txt', 'r') as my_data:

content = my_data.read()

print("Current File Content:")

print(content)

# 2: Open the file in Append mode

with open('example.txt', 'a', encoding='utf-8') as data:

data.write('\nAppended line of text.\n')

print('Line appended successfully.')

with open('example.txt', 'r', encoding='utf-8') as data:

content = data.read()

print('\nFile content after appending:')

print(content)

# 3: Modify and overwrite content

with open('example.txt', 'r') as file:

old_content = file.read()

new_content = old_content.lower()

with open('example.txt', 'w') as file:

file.write(new_content)

print("Content converted to lowercase and saved.")