Run a command in a subprocess and yield lines of text from stdout and
stderr independently.
Useful for handling long-running proceesses that write to both stdout and
stderr.
import sproc
CMD = 'my-unix-command "My Cool File.txt" No-file.txt'
for ok, line in sproc.Sub(CMD) as sp:
if ok:
print(' ', line)
else:
print('!', line)
if sp.returncode:
print('Error code', sp.returncode)
# Return two lists of text lines and a returncode
out_lines, err_lines, returncode = sproc.run(CMD)
# Call callback functions with lines of text read from stdout and stderr
returncode = sproc.call(CMD, save_results, print_errors)
# Log stdout and stderr, with prefixes
returncode = sproc.log(CMD)