Редактирование Python/FAQ/Управление и взаимодействие с процессами (раздел)

== Gathering Output from a Program ==
<source lang="python">
import popen2

# other popen methods than popen4 can lead to deadlocks
# if there is much data on stdout and stderr

(err_out, stdin) = popen2.popen4("program args")
lines = err_out.read() # collect output into one multiline string


(err_out, stdin) = popen2.popen4("program args")
lines = err_out.readlines() # collect output into a list, one line per element

#-----------------------------

(err_out, stdin) = popen2.popen4("program args")
output = []
while True:
    line = err_out.readline()
    if not line:
        break

    output.appen(line)
output = ''.join(output)
</source>