- for line in iter(p.stdout.readline, b''):
- print(line.decode('utf-8'), end='')
- p.stdout.close()
+ sel = selectors.DefaultSelector()
+ sel.register(p.stdout, selectors.EVENT_READ)
+ sel.register(p.stderr, selectors.EVENT_READ)
+ stream_ends = 0
+ while stream_ends < 2:
+ for key, _ in sel.select():
+ char = key.fileobj.read(1)
+ if not char:
+ stream_ends += 1
+ continue
+ if key.fileobj is p.stdout:
+ sys.stdout.buffer.write(char)
+ if char in line_enders:
+ sys.stdout.flush()
+ else:
+ sys.stderr.buffer.write(char)
+ if char in line_enders:
+ sys.stderr.flush()