Python save output to text file

You would probably want this. Simplest solution would be Create file first. This is very simple, just make use of this example import sys with open "test.

DBat 1 1 silver badge 11 11 bronze badges. Ravi Ravi 2, 1 1 gold badge 14 14 silver badges 28 28 bronze badges. Note1: In case you want to put the function oprint in a module then import it, use: import builtins builtins. Omar Baltaji Omar Baltaji 1 1 1 bronze badge. We can simply pass the output of python inbuilt print function to a file after opening the file with the append option by using just two lines of code: with open 'filename.

Note: this code works with python3 however, python2 is not being supported currently. VirtualScooter 1, 3 3 gold badges 15 15 silver badges 24 24 bronze badges. Vims Rocz Vims Rocz 13 6 6 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses.

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Related Hot Network Questions. Check that the folder exists, and print out bamfiles in your script. Also, use os. Python 2 or Python 3 API reference:. The file argument must be an object with a write string method; if it is not present or None , sys. Since printed arguments are converted to text strings, print cannot be used with binary mode file objects. For these, use file. Since file object normally contains write method, all you need to do is to pass a file object into its argument.

Now the hello will be written to the test. Make sure to close the stdout with a close , without it the content will not be save in the file. You can change sys. Instead of using print , use the logging module. With logging , you can print just like you would to stdout , or you can also write the output to a file.

You can even use the different message levels critical , error , warning , info , debug to, for example, only print major issues to the console, but still log minor code actions to a file.

To learn more about using more advanced logging features, read the excellent logging tutorial in the Python docs. The easiest solution isn't through python; its through the shell. From the first line of your file! Just use print statements like you normally would, and don't open the file at all in your script.

When you go to run the file, instead of. One important thing that needs to be mentioned here is that "script. If you are using Linux I suggest you to use the tee command. The implementation goes like this:. If you don't want to change anything in the code, I think this might be the best possible solution. You can also implement logger but you need do some changes in the code.

Don't change your stdout destination unless it's absolutely necessary maybe you're using a library that only outputs to stdout??? I think as a good habit you should prepare your data ahead of time as a string, then open your file and write the whole thing at once. Just doing it all in one operation leaves no question for when it might have gone wrong. However if you have lots of data to write, you could write it one piece at a time. I don't think it's relevant to your application but here's the alternative:.

If redirecting stdout works for your problem, Gringo Suave's answer is a good demonstration for how to do it. To make it even easier , I made a version utilizing contextmanagers for a succinct generalized calling syntax using the with statement:. It's useful for selectively redirecting print when a module uses it in a way you don't like.

The only disadvantage and this is the dealbreaker for many situations is that it doesn't work if one wants multiple threads with different values of stdout , but that requires a better, more generalized method: indirect module access. You can see implementations of that in other answers to this question. I am able to crack this using the following method. It will use this print function instead of builtin print function and save the content to a file.

Changing the value of sys. If you use an alternative way to change the destination of print, you will get the same result. We can use the global keyword if we want to affect all print calls:.

Personally, I'd prefer sidestepping the requirement to use the print function by baking the output file descriptor into a new function:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. How to redirect 'print' output to a file? Ask Question. Asked 10 years, 4 months ago. Active 3 months ago. Viewed k times. However I get nothing in the.