subprocess.Popen() IO redirect

by

Altenatively, you can use the stdout parameter with a file object:

with open('temp.txt', 'w') as output:
    server = subprocess.Popen('./server.py', stdout=output)
    server.communicate()

As explained in the documentation:

stdin, stdout and stderr specify the executed program’s standard input, standard output and standard error file handles, respectively. Valid values are PIPE, an existing file descriptor (a positive integer), an existing file object, and None.

More Related Contents:

  1. Python subprocess/Popen with a modified environment
  2. How to use subprocess popen Python [duplicate]
  3. Subprocess.Popen: cloning stdout and stderr both to terminal and variables
  4. Popen waiting for child process even when the immediate child has terminated
  5. Python popen command. Wait until the command is finished
  6. How can I specify working directory for popen
  7. Calling the “source” command from subprocess.Popen
  8. Running a process in pythonw with Popen without a console
  9. Intercepting stdout of a subprocess while it is running
  10. Python subprocess.Popen() error (No such file or directory)
  11. Popen with conflicting executable/path
  12. subprocess.Popen() error (No such file or directory) when calling command with arguments as a string
  13. How to write to stdout AND to log file simultaneously with Popen?
  14. How do I get all of the output from my .exe using subprocess and Popen?
  15. link several Popen commands with pipes
  16. Is it possible to run function in a subprocess without threading or writing a separate file/script.
  17. Python subprocess and user interaction
  18. Keep a subprocess alive and keep giving it commands? Python
  19. How to get output from subprocess.Popen(). proc.stdout.readline() blocks, no data prints out
  20. How to run a background process and do *not* wait?
  21. real time subprocess.Popen via stdout and PIPE
  22. What’s the difference between subprocess Popen and call (how can I use them)?
  23. How do I eliminate Windows consoles from spawned processes in Python (2.7)? [duplicate]
  24. Killing a process created with Python’s subprocess.Popen() [duplicate]
  25. Bash style process substitution with Python’s Popen
  26. How to do multiple arguments with Python Popen?
  27. subprocess.wait() not waiting for Popen process to finish (when using threads)?
  28. Opening a process with Popen and getting the PID
  29. subprocess.Popen in different console
  30. What is the subprocess.Popen max length of the args parameter?

Leave a Comment