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10 changes: 6 additions & 4 deletions snmp_passpersist.py
Original file line number Diff line number Diff line change
Expand Up @@ -243,10 +243,12 @@ def main_passpersist(self):
the start method.
Direct call is unnecessary.
"""
line = sys.stdin.readline()
if not line:
raise EOFError()
line = line.strip()
line = ""
while line == "":
line = sys.stdin.readline()
if not line:
raise EOFError()
line = line.strip()

if 'PING' in line:
print("PONG")
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