Python subprocess.py() Examples
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code examples of subprocess.py().
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Example #1
Source File: test_example.py From DockerMake with Apache License 2.0 | 6 votes |
def test_get_console_width_no_stderr_on_failure(): # run docker-make with a non-console standard input # (inspiration from Python's subprocess.py) process = subprocess.Popen( "docker-make devbase --repo myrepo --tag mytag".split(), cwd=EXAMPLEDIR, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, ) try: stdout, stderr = process.communicate(b"I am not a shell") except: process.kill() process.wait() raise retcode = process.poll() assert retcode == 0 # sanity check - did this build not work for some reason? assert b"ioctl for device" not in stderr
Example #2
Source File: processutils.py From releases with Apache License 2.0 | 4 votes |
def check_output(*popenargs, timeout=None, **kwargs): # A variation of subprocess.check_output that captures stderr and # logs it instead of letting it go to the console directly to make # it easier for tests to capture it. # NOTE(dhellmann): copied from subprocess.py vv if 'stdout' in kwargs: raise ValueError('stdout argument not allowed, it will be overridden.') if 'input' in kwargs and kwargs['input'] is None: # Explicitly passing input=None was previously equivalent to passing an # empty string. That is maintained here for backwards compatibility. kwargs['input'] = '' if kwargs.get('universal_newlines', False) else b'' # NOTE(dhellmann): end copied from subprocess.py ^^ cmd = kwargs.get("args") if cmd is None: cmd = popenargs[0] if 'cwd' in kwargs: LOG.debug('cwd = {}'.format(kwargs['cwd'])) LOG.debug('$ {}'.format(' '.join(cmd))) if 'stderr' not in kwargs: kwargs['stderr'] = subprocess.PIPE # Copy full environment to pass in so we can include any of our own # environment variables with it. env = os.environ.copy() env_extras = kwargs.pop('env', None) if env_extras: env.update(env_extras) completed = subprocess.run(*popenargs, stdout=subprocess.PIPE, timeout=timeout, check=True, env=env, **kwargs) if completed.stderr: _multi_line_log(logging.WARNING, completed.stderr.decode('utf-8')) return completed.stdout