To read and write from a file using python programmin.

# To read and write from a file

str = input("Enter file name to open : ")


while(True):
    print("Choose one option : ")
    print("1. Write to file.")
    print("2. Read from file")
    print("e. exit")

    op = input();
    if op == '1':
        file = open(str+".txt","w")
        ele = input("Enter a string to write to file : ")
        file.write(ele+" ")
        file.close()
    elif op =='2':
        try:
            file = open(str+".txt","r")
            fd = file.read()
            print("file data : ")
            print(fd)
            file.close()
        except (FileNotFoundError):
            print("File not found.")
    elif op == 'e':
        break
    else:
        print("Choose correct option.")


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