I want to save result of script to file. Example of script:
#!/usr/bin/env python i=0 while i<10: a=raw_input('Write a number') print 'Result%s'%str(2*a) i+=1 And I want to save to file print value. I know that I can do that in script f=open()..., but I want to do that using output in terminal. I read that I can use module subprocess but I don't know it is correct.
You can redirect the output to a file using > in terminal:
python your_script.py > output.txt 
open(), but he wants to use print and not write. But I have to admit, it is quite unclear. Maybe he does not want to change his code at all, then best shot is to use terminal, or subprocess.python file.py &> out.txt This will direct all the output including the errors to the out.txt.
rm out.txt; python file.py &> out.txtIMO this is the correct pythonic way, with-out relying on the system shell:
import sys f = open("test.out", 'w') sys.stdout = f print "test" f.close() In python you can change what is the default stdout object. You just need to assign whatever you want to sys.stdout. I think the object just need to have a write method defined (not absolutely sure, though).
This would do:
import sys f = open("test.out", 'w') sys.stdout = f i=0 while i<10: a=raw_input('Write a number') print 'Result%s'%str(2*a) i+=1 f.close() It's essentially the same what 0605002 suggests for systems that support syntax he uses, but realized in pure python and should be more portable.
Even more pythonic way, as per comment suggestion:
import sys with open("test.out", 'w') as f: sys.stdout = f i=0 while i<10: a=raw_input('Write a number') print 'Result%s'%str(2*a) i+=1 Of course you can refactor your "client code" and make it a function or something.
with statement not found!! :-)f.close()! =) I edited the question and added even more pythonic way. I hope everyone's content with the answer now.
import sys f = open("test.out", 'w') sys.stdout = f "on terminal execute some operation (due to run another script) and I save result from terminal to the file" f.close()stdin, stdout and stderr. You can look for "How can I run another script from python." there are several ways, and someone most probably already asked it. It is also possible to use import for this, I think.
python file.py > out.txt??