How to store output printed on terminal console to a text file in Python

I would rather go ahead with bash and use tee command. It redirects the output to a file too.

python -u my.py | tee my_file.txt

If you want to do the redirection within the Python script, setting sys.stdout to a file object does the trick:

import sys
sys.stdout = open('file', 'w')
print('test')

A far more common method is to use shell redirection when executing (same on Windows and Linux):

$ python foo.py > file

Check this thread Redirect stdout to a file in Python?

Custom Print function for both console and file, replace all print with printing in the code.

outputFile = open('outputfile.log', 'w')

def printing(text):
    print(text)
    if outputFile:
        outputFile.write(str(text))

If your python script is file.py, Then use :

python3 file.py > output.txt

Or

python file.py > output.txt

Depending on your python version. This statement (>) will all the outputs of the program into the stdout to the file, output.txt

EDIT :

python3 file.py > output.txt;cat output.txt

The above line can be used to print the file output.txt after the program execution.

EDIT2 : Another possible option to use a custom print function :

f = open('output.txt')
def custom_print(e = '\n',*s)
    for i in s[:-1]:
        print(i,end=' ')
    print(s[-1],end = e)
    f.write(s)
#Your code
#
f.close()

you have to add file argument to the print() function

print('whatever', file = file_name)