Question

请协助解决python中TypeError: not all arguments converted during string formatting错误

class Server(object):
def __init__(self, ip, hostname):
self.ip = ip
self.hostname = hostname
def set_ip(self, ip):
self.ip = ip
def set_hostname(self, hostname):
self.hostname = hostname
def ping(self, ip_addr):
print "Pinging $s from %s (%s)"%(ip_addr, self.ip, self.hostname)
if __name__ == '__main__':
server = Server('192.168.1.104', 'admin')
server.ping('192.168.1.253')
Traceback (most recent call last):
File "pingtest.py", line 16, in <module>
server.ping('192.168.1.253')
File "pingtest.py", line 13, in ping
print "Pinging $s from %s (%s)"%(ip_addr, self.ip, self.hostname)
TypeError: not all arguments converted during string formatting
请协助解决此错误，谢谢！！！

Answer 1

print "Pinging $s from %s (%s,%s,)"%(ip_addr, self.ip, self.hostname)
这里应该是两个字符操作符 (%s,%s)。

Answer 2

print "Pinging $s from %s (%s)"%(ip_addr, self.ip, self.hostname)

把$s 换成 %s