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I'm using eSpeak on Ubuntu and have a Python 2.7 script that prints and speaks a message:
import subprocess text = 'Hello World.' print text subprocess.call(['espeak', text]) eSpeak produces the desired sounds, but clutters the shell with some errors (ALSA lib..., no socket connect) so i cannot easily read what was printed earlier. Exit code is 0.
Unfortunately there is no documented option to turn off its verbosity, so I'm looking for a way to only visually silence it and keep the open shell clean for further interaction.
How can I do this?
660
To capture the output of the subprocess. run method, use an additional argument named “capture_output=True”. You can individually access stdout and stderr values by using “output. stdout” and “output.
The subprocess. check_output() is used to get the output of the calling program in python. It has 5 arguments; args, stdin, stderr, shell, universal_newlines. The args argument holds the commands that are to be passed as a string.
subprocess. Popen takes a cwd argument to set the Current Working Directory; you'll also want to escape your backslashes ( 'd:\\test\\local' ), or use r'd:\test\local' so that the backslashes aren't interpreted as escape sequences by Python. The way you have it written, the \t part will be translated to a tab .
For python >= 3.3, Redirect the output to DEVNULL:
import os import subprocess retcode = subprocess.call(['echo', 'foo'], stdout=subprocess.DEVNULL, stderr=subprocess.STDOUT) For python <3.3, including 2.7 use:
FNULL = open(os.devnull, 'w') retcode = subprocess.call(['echo', 'foo'], stdout=FNULL, stderr=subprocess.STDOUT) It is effectively the same as running this shell command:
retcode = os.system("echo 'foo' &> /dev/null") If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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