我正在尝试遵循 Python 缩进的正确协议(protocol)，但 python 仍然会抛出错误。我确信 python 有充分的理由，我的代码很糟糕，但我没有看到根本原因。
运行时错误指向最后一行
~/python $ ./hover_api_v1.0.py
File "./hover_api_v1.0.py", line 139
time.sleep(60.0)
^
IndentationError: expected an indented block
下面是我的代码。有些标题与缩进无关。
错误是在时间命令的最后一行抛出的。但是我没有在代码中看到我的错误。时间 cmd 是顶部 while 循环的一部分并正确缩进。
while True:
ip_now = get_asus_wan_ip()
if (ip_now == ip_last):
day = datetime.datetime.now().day
if day != last_day:
last_day = day
with open(logfile, "a") as lf:
lf.write(time.strftime("%Y-%m-%d %H:%M:%S") + " WAN IP still the same " + str(ip_last) +"\n")
else:
# We need to do something
#print('WAN IP changed from ' + str(ip_last) + " to " + str(ip_now))
with open(logfile, "a") as lf:
lf.write(time.strftime("%Y-%m-%d %H:%M:%S") + " WAN IP changed from " + str(ip_last) + " to " + str(ip_now) + "\n")
ip_last= ip_now
# connect to API
client = HoverAPI('XXXXXXX','YYYYYYY')
for dnsname in ['*.zzzzz.zzz', '@.zzzzz.zzz']:
#print('Testing: ' + dnsname)
dns_name, domain_name = dnsname.split('.', 1)
# get all DNS records
result = client.call("get", "dns")
assert result['succeeded'], result
# discover existing dns record, if any
dns_record = None
domain_record = None
for dns_domain in result['domains']:
if dns_domain['domain_name'] == domain_name:
domain_record = dns_domain
for dns_entry in dns_domain['entries']:
if dns_entry['name'] == dns_name:
dns_record = dns_entry
break
if dns_record is not None and domain_record is not None:
break
if dns_record is not None and domain_record is not None:
#print('Hover-IP for ' + dnsname + ' = ' + str(dns_entry['content'].encode('ascii','ignore')))
#print('Current IP= ' + str(ip_now))
if str(dns_entry['content']) == str(ip_now):
#print('Hover-IP for ' + dnsname + ' = ' + str(dns_entry['content'].encode('ascii','ignore')) + ' same as Current IP = ' + str(ip_now) + '. No action.')
with open(logfile, "a") as lf:
lf.write(time.strftime("%Y-%m-%d %H:%M:%S") + " Hover-IP for " + dnsname + " = " + str(dns_entry['content'].encode('ascii','ignore')) + " same as Current IP = " + str(ip_now) + ". No action." + "\n")
else:
#print(" Deleting entry for {0}.{1} ... ".format(dns_name, domain_name), end="")
with open(logfile, "a") as lf:
lf.write(time.strftime("%Y-%m-%d %H:%M:%S") + " Deleting entry for " + dnsname + "\n")
result = client.call("delete", "dns/{0}".format(dns_record['id']))
assert result['succeeded'], result
#print("OK")
## create a new A record:
#print("Creating A record {0}.{1} => {2} ... ".format(dns_name, domain_name, ip_now), end="")
with open(logfile, "a") as lf:
lf.write(time.strftime("%Y-%m-%d %H:%M:%S") + " Creating A record " + dnsname + " => " + ip_now + "\n")
record = {"name": dns_name, "type": "A", "content": ip_now}
post_id = "domains/{0}/dns".format(domain_record['id'])
#print("post", post_id, record)
result = client.call("post", post_id, record)
assert result['succeeded'], result
#print("OK")
else:
#print("No record exists for {0}".format(dnsname))
# Sleep at end of loop.
time.sleep(60.0)
非常感谢您的反馈。 格特
请您参考如下方法:
问题就在这里；
else:
#print("No record exists for {0}".format(dnsname))
就缩进而言，注释不算作代码。 所以你需要在那个地方有真正的代码。
解决这个问题的方法是使用 python 的 pass 关键字。
else:
#print("No record exists for {0}".format(dnsname))
pass
这向 python 发出信号，表明您有意将该缩进级别所需的代码留空。
或者，简单地取消注释你那里的代码也可以解决这个问题，当然假设你真的想在那里打印。
