How to output to txt (Programming in Python with Processing 3)

Question

I'm currently working on a project and a part of the project is to output something to the project directory in a sepereate .txt file, I have completed that but I have a problem, everything works GREAT but I don't want to create a new file every single time but I want to have everything and all records stored in only one file and that they just keep adding up, can someone help me?

Here's a part of the code I've came up with, don't bother about the "%d" etc. I just need help with output :

output = createWriter("rekordi.txt")
            output.print("Tvoj zadnji rekord je " + str(millis()/1000-sekunde) + " sekund || ob " + str(datum.strftime("%I:" + "%M" + " %p" + " na " + "%d." + "%b"))) # Write the date to the file
            output.flush()# Writes the remaining data to the file
            output.close()# Finishes the file

Sam · Accepted Answer · 2020-05-29 18:09:27Z

1

What you want to do is open a file in append mode. This will create it if it doesn't exist, and will append to it instead of overwriting it if it does already exist. Something like this should do what you want:

my_file_path = 'output_record.txt'
with open(my_file_path, 'a') as outfile:
    outfile.write(<output data here in string format> + '\n') # \n for newline

The with ... is a context manager block, which means that the file will automatically be closed when that code block exits. And the 'a' second argument to open specifies append mode.

Hope that helps, Happy Coding (and happy Friday)!

edited May 29, 2020 at 18:09

answered May 29, 2020 at 15:59

Sam

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4 Comments

Splixer Over a year ago

I've tried your method and I still can't get it to work, It just keeps rewriting it over the text I have in the file, I want it to get a highscore and save it in there, and every time I open the game and play it, it saves new highscore below the last one, do you have a solution for that?

Sam Over a year ago

The code above works for me. One thing is that you need to append a newline \n if you want it to have each on its own line. I edited my answer to reflect that.

Splixer Over a year ago

soo if I just copy paste the code above, everything should be working? or do I have to put anything before and aftet it?

Sam Over a year ago

I used only the code above. I ran it several times, and saw one line for each call in my output file.

Sentouki · Accepted Answer · 2020-05-29 15:55:18Z

1

with open("rekordi.txt", "a", buffering=0) as f:
      f.write("write some data")

file mode "a" will append all data to the file
buffering=0 means that data will be written directly to the file (just like using flush() )

answered May 29, 2020 at 15:55

Sentouki

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