Python capture stdout

Python write subprocess stdout stderr to file

with open("stdout.txt","wb") as out, open("stderr.txt","wb") as err:
    subprocess.Popen("ls",stdout=out,stderr=err)

Source: stackoverflow.com

Python capture stdout

from io import StringIO 
import sys

class Capturing(list):
    def __enter__(self):
        self._stdout = sys.stdout
        sys.stdout = self._stringio = StringIO()
        return self
    def __exit__(self, *args):
        self.extend(self._stringio.getvalue().splitlines())
        del self._stringio    # free up some memory
        sys.stdout = self._stdout
        
with Capturing() as output:
    print('hello world')

print('displays on screen')

with Capturing(output) as output:  # note the constructor argument
    print('hello world2')

print('done')
print('output:', output)

Source: stackoverflow.com

Similar codes

9 votes254 views1 answer
Python delete none from list
Python
0 vote253 views1 answer
Set_interval()
Python
0 vote241 views1 answer
Compute the mean of this RDD’s elements.
Python
0 vote254 views1 answer
Tkinter convert Entry to string
Python
0 vote240 views1 answer
Display pil image on kivy canvas
Python
0 vote245 views3 answers
Webbrowser.google.open python
Python
1 vote235 views1 answer
Python fdr correction
Python
37 votes261 views6 answers
Arrays python
Python
27 votes238 views3 answers
How to convert exe file to python file
Python
8 votes244 views4 answers
Pygame change icon
Python