PYTHON read and write file

When we wants to read some file especially with text file, we will used the read and write methods.


 line = line.strip()  and print(line,end='') is the same.
If you don't used this two code, it will automatic add new line to each line while it read the text file.



===========================Source code===================


EXAMPLE1:

 METHOD1

with open('test.txt') as f,open('out.txt', 'w') as f_out:

    for line in f:

        line = line.strip()

        print(line)

 METHOD2

with open('test.txt') as f,open('out.txt', 'w') as f_out:

    for line in f:

        print(line,end='')

Note:

There are two ways to implement this function on reading a file from text file.

You can use line.strip or use (ine,end’’)

OUTPUT:

EXAMPLE2:

with open('test.txt') as f,open('out.txt', 'w') as f_out:

    for line in f:

        line = line.strip()

        #print(line)

        f_out.write('{}\n'.format(line))

    

 NOTE:

Output to a file need to use this:

f_out.write('{}\n'.format(line))

OUTPUT:

EXAMPLE3:
 

sum=0

count=0

for grade in open('grade.txt'):

    print(grade, end='')

    sum=sum+int(grade)

    count=count+1

average =sum/count

print("Aaverage:"+str(average))

 OUTPUT: