سبق File Read & Write

>>> file = open("poem.txt"")
>>> result = file.read()
>>> print (result)

>>> file = open("poem.txt")
>>> file.readline()
'The Man Who Thinks He Can\n'
>>> file.readline()
'\n'
>>> file.readline()
'If you think you are beaten, you are;\n'
>>> file.readline()
"If you think you dare not, you don't.\n"
>>> file.readline()
"If you'd like to win, but think you can't\n"
>>>

>>> file = open ("poem.txt")
>>> result = file.readlines()
>>> print (result)
['The Man Who Thinks He Can\n', '\n', 'If you think you are beaten, you are;\n', "If you think you dare not, you don't.\n", "If you'd like to win, but think you can't\n", "It's almost a cinch you won't.\n", '\n', "If you think you'll lose, you've lost,\n", 'For out in the world we find\n', "Success being with a fellow's will;\n", "It's all in the state of mind.\n", '\n', "If you think you're outclassed, you are:\n", "You've got to think high to rise.\n", "You've got to be sure of yourself before\n", 'You can ever win a prize.\n', '\n', "Life's battles don't always go\n", 'To the stronger or faster man,\n', 'But soon or late the man who wins\n', 'Is the one who thinks he can.\n', '\n', 'Walter D. Wintle']

>>> file = open ("poem.txt"")
>>> result = file.readlines()
>>> result[0]
'The Man Who Thinks He Can\n'
>>> result[1]
'\n'
>>> result[2]
'If you think you are beaten, you are;\n'
>>> result[12]
"If you think you're outclassed, you are:\n"
>>>

>>> file = open("poem.txt")
>>> for line in file:
>>>     print(line, end='')
 
 
The Man Who Thinks He Can
 
If you think you are beaten, you are;
If you think you dare not, you don't.
If you'd like to win, but think you can't
It's almost a cinch you won't.
 
If you think you'll lose, you've lost,
For out in the world we find
Success being with a fellow's will;
It's all in the state of mind.
 
If you think you're outclassed, you are:
You've got to think high to rise.
You've got to be sure of yourself before
You can ever win a prize.
 
Life's battles don't always go
To the stronger or faster man,
But soon or late the man who wins
Is the one who thinks he can.
 
Walter D. Wintle

>>> file = open("existing_file.txt",'w')
>>> file.write("This is a sample text to be writen in an existing file \nsurely.")
63
>>> file.close()

>>> file = open("new.txt",'w')
>>> file.write("This is a sample text to be writen in new file \nsurely.")
55
>>> file.close()

>>> file = open("new.txt",'w')
>>> file.write("This is a sample text to be writen in new file \nsurely.")
55
>>> file.close()

\n

\n

with open("newfile.txt",  'r', encoding='utf-8') as f:
    f.read()

with open("newfile.txt", mode='r', encoding='utf-8') as f:
    f.read()