CODEWITHSUNDEEP
pythonif-statement
Jefer Bulan
Jefer Bulan

Reputation: 43

How to write in new Lines because my input is overwriting each other?

I'm trying to save the answers from a GUI that has radio buttons that has different value ranging from A, B and C, but when I'm trying my code it completely rewrite the first letters and not going to the next line. 

    self.pushButton.clicked.connect(lambda: 
    self.btnA_clk(self.radioButton_16.isChecked()))
    self.pushButton.clicked.connect(lambda: 
    self.btnB_clk(self.radioButton_17.isChecked()))
    self.pushButton.clicked.connect(lambda: 
    self.btnC_clk(self.radioButton_18.isChecked()))



def btnA_clk(self, clkA):
    if clkA:
        textfile = open("studentexam.txt", "w")
        print("A")
        textfile.write("A")
        textfile.close()

def btnB_clk(self, clkB):
    if clkB:
        textfile = open("studentexam.txt", "w")
        print("B")
        textfile.write("B")
        textfile.close()

def btnC_clk(self, clkC):
    if clkC:
        textfile = open("studentexam.txt", "w")
        print("C")
        textfile.write("C")
        textfile.close()

My output in my console is a b c d e but in the text file it has only 1 letter written in the first line which is the last letter.

Upvotes: 0

Views: 31

Answers (2)

BoarGules
BoarGules

Reputation: 16941

Every time your code does this:

textfile = open("studentexam.txt", "w")

you are opening the file afresh and overwriting what was there before. The same as File | Save does in an application, except that your code doesn't ask "Are you sure?". Use mode "a" instead of "w".

From the documentation for open():

The most commonly-used values of mode are 'r' for reading, 'w' for writing (truncating the file if it already exists), and 'a' for appending.

Upvotes: 3

naivepredictor
naivepredictor

Reputation: 898

# param = 'clkA'
def button_click(self, param):
    with open('studentexam.txt', 'a') as f:
        print(param[-1])
        f.write(param[-1])

Confused by python file mode "w+"

ps. try to avoid duplication of the code when each function does same functionality ... if possible of course.

Upvotes: 0

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