Directing print output to a txt file

Question

Is there a way to save all of the print output to a txt file in python  Lets say I have the these two lines in my code and I want to save the print output to a file named output txt   print   Hello stackoverflow    print   I have a question      I want the output txt file to to contain  Hello stackoverflow  I have a question

User · Answer

Another method without having to update your Python code at all, would be to redirect via the console.

Basically, have your Python script print() as usual, then call the script from the command line and use command line redirection. Like this:

$ python ./myscript.py > output.txt

Your output.txt file will now contain all output from your Python script.

Edit:
To address the comment; for Windows, change the forward-slash to a backslash.
(i.e. .\myscript.py)

User · Answer

Give print a file keyword argument  where the value of the argument is a file stream  We can create a file stream using the open function  print  quot Hello stackoverflow  quot   file open  quot output txt quot    quot a quot    print  quot I have a question  quot   file open  quot output txt quot    quot a quot     From the Python documentation about print   The file argument must be an object with a write string  method  if it is not present or None  sys stdout will be used   And the documentation for open   Open file and return a corresponding file object  If the file cannot be opened  an OSError is raised   The  quot a quot  as the second argument of open means  quot append quot  - in other words  the existing contents of the file won t be overwritten  If you want the file to be overwritten instead  use  quot w quot    Opening a file with open many times isn t ideal for performance  however  You should ideally open it once and name it  then pass that variable to print s file option  You must remember to close the file afterwards  f   open  quot output txt quot    quot a quot   print  quot Hello stackoverflow  quot   file f  print  quot I have a question  quot   file f  f close    There s also a syntactic shortcut for this  which is the with block  This will close your file at the end of the block for you  with open  quot output txt quot    quot a quot   as f      print  quot Hello stackoverflow  quot   file f      print  quot I have a question  quot   file f

User · Answer

One can directly store the returned output of a function in a file   print output statement  file open  filename    a

User · Answer

Use the logging module  def init logging        rootLogger   logging getLogger  my logger        LOG DIR   os getcwd            logs      if not os path exists LOG DIR           os makedirs LOG DIR      fileHandler   logging FileHandler   0   1  log  format LOG DIR   g2        rootLogger addHandler fileHandler       rootLogger setLevel logging DEBUG       consoleHandler   logging StreamHandler       rootLogger addHandler consoleHandler       return rootLogger   Get the logger   logger   init logging     And start logging output ing    logger debug  Hi

User · Answer

Another Variation can be    Be sure to close the file afterwards   import sys file   open  output txt    a   sys stdout   file  print  Hello stackoverflow     print  I have a question     file close

User · Answer

Suppose my input file is  quot input txt quot  and output file is  quot output txt quot   Let s consider the input file has details to read  5 1 2 3 4 5  Code  import sys  sys stdin   open  quot input quot    quot r quot   sys stdout   open  quot output quot    quot w quot    print  quot Reading from input File    quot   n   int input    print  quot Value of n is   quot   n   arr   list map int  input   split     print arr   So this will read from input file and output will be displayed in output file  For more details please see https   www geeksforgeeks org inputoutput-external-file-cc-java-python-competitive-programming

User · Answer

You can redirect stdout into a file  output txt    import sys sys stdout   open  output txt   wt   print   Hello stackoverflow    print   I have a question

[python] Directing print output to a .txt file

Examples related to python

Examples related to python-3.x