Python3 How could i make Reading and writing using With

June 12, 2023

Hello How i could make Python Write and Read at the sametime using (with) i did this simple function to add names in txt file but the output is usully empty…

def student():
    with open("students.txt","w+") as my_file:
        for i in range(20):
            user = input("Enter your name : ")
            my_file.write(f"{user}\n")
        print(my_file.read())

student()

tried r+ w+ a+ but none of them were working only r works but then i can’t add to the file

>Solution :

You need to reposition the cursor to the start of the file, write moves it to the end:

def student():
    with open("students.txt", "w+") as my_file:
        for i in range(20):
            user = input("Enter your name : ")
            my_file.write(f"{user}\n")

        my_file.seek(0)  # reposition cursor to start of file
        print(my_file.read())

student()