mik-laj commented on a change in pull request #6389: [AIRFLOW-5663]: Switch to
real-time logging in PythonVirtualenvOperator.
URL: https://github.com/apache/airflow/pull/6389#discussion_r337667617
##########
File path: airflow/operators/python_operator.py
##########
@@ -330,16 +330,20 @@ def _pass_op_args(self):
return len(self.op_args) + len(self.op_kwargs) > 0
def _execute_in_subprocess(self, cmd):
- try:
- self.log.info("Executing cmd\n%s", cmd)
- output = subprocess.check_output(cmd,
- stderr=subprocess.STDOUT,
- close_fds=True)
- if output:
- self.log.info("Got output\n%s", output)
- except subprocess.CalledProcessError as e:
- self.log.info("Got error output\n%s", e.output)
- raise
+ self.log.info("Executing cmd\n{}".format(cmd))
+ self._sp = subprocess.Popen(cmd,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.STDOUT,
+ bufsize=0,
+ close_fds=True)
+ self.log.info("Got output\n")
+ with self._sp.stdout:
+ for line in iter(self._sp.stdout.readline, b''):
+ self.log.info(line)
Review comment:
```suggestion
self.log.info("%s", line)
```
Data should be passed as arguments so that they are written in a different
color.
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