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

-1 vote192 views2 answers
Logarithms python
Python
57 votes190 views6 answers
Python get list of files in directory
Python
0 vote218 views1 answer
Django clodinarystorage
Python
0 vote222 views1 answer
What is the correct way to sort the list 'B' using a method, the result should not return a new list, just change the list 'B' in python
Python
1 vote218 views1 answer
Python check if two sets intersect
Python
0 vote238 views1 answer
Add a new categorical column to an existing table python
Python
0 vote206 views1 answer
Remove percentage in python
Python
1 vote229 views1 answer
GdScript int
Python
0 vote294 views1 answer
Ternary operator using dictionary in Python
Python
1 vote222 views1 answer
For idx, col_name in enumerate(X_train.columns): print("The coefficient for {} is {}".format(file_name, regression_model.coef_[0][idx]))
Python