python 2.7.7 执行这段代码总是卡住 不报错也不退出 求大神解答 别人的电脑上都是可以正常运行的 我执行一段python脚本报错了，怎么解决

\u4e3a\u4ec0\u4e48\u6211\u7684\u8fd9\u6bb5python\u4ee3\u7801\u8fd0\u884c\u4e0d\u51fa\u6765\u7ed3\u679c\uff0c\u4e5f\u6ca1\u62a5\u9519\uff0c\u8dea\u6c42\u5927\u795e\u6307\u70b9

\u53ea\u662freturn\u554a
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\u7528\u9519\u8bef\u7801\u6765\u8868\u793a\u662f\u5426\u51fa\u9519\u5341\u5206\u4e0d\u4fbf\uff0c\u56e0\u4e3a\u51fd\u6570\u672c\u8eab\u5e94\u8be5\u8fd4\u56de\u7684\u6b63\u5e38\u7ed3\u679c\u548c\u9519\u8bef\u7801\u6df7\u5728\u4e00\u8d77\uff0c\u9020\u6210\u8c03\u7528\u8005\u5fc5\u987b\u7528\u5927\u91cf\u7684\u4ee3\u7801\u6765\u5224\u65ad\u662f\u5426\u51fa\u9519\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

def foo():
r = some_function()
if r==(-1):
return (-1)
# do something
return r

def bar():
r = foo()
if r==(-1):
print 'Error'
else:
pass


\u4e00\u65e6\u51fa\u9519\uff0c\u8fd8\u8981\u4e00\u7ea7\u4e00\u7ea7\u4e0a\u62a5\uff0c\u76f4\u5230\u67d0\u4e2a\u51fd\u6570\u53ef\u4ee5\u5904\u7406\u8be5\u9519\u8bef\uff08\u6bd4\u5982\uff0c\u7ed9\u7528\u6237\u8f93\u51fa\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\uff09\u3002

\u6240\u4ee5\u9ad8\u7ea7\u8bed\u8a00\u901a\u5e38\u90fd\u5185\u7f6e\u4e86\u4e00\u5957try...except...finally...\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\uff0cPython\u4e5f\u4e0d\u4f8b\u5916\u3002
try
\u8ba9\u6211\u4eec\u7528\u4e00\u4e2a\u4f8b\u5b50\u6765\u770b\u770btry\u7684\u673a\u5236\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try:
print 'try...'
r = 10 / 0
print 'result:', r
except ZeroDivisionError, e:
print 'except:', e
finally:
print 'finally...'
print 'END'


\u5f53\u6211\u4eec\u8ba4\u4e3a\u67d0\u4e9b\u4ee3\u7801\u53ef\u80fd\u4f1a\u51fa\u9519\u65f6\uff0c\u5c31\u53ef\u4ee5\u7528try\u6765\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5982\u679c\u6267\u884c\u51fa\u9519\uff0c\u5219\u540e\u7eed\u4ee3\u7801\u4e0d\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u800c\u662f\u76f4\u63a5\u8df3\u8f6c\u81f3\u9519\u8bef\u5904\u7406\u4ee3\u7801\uff0c\u5373except\u8bed\u53e5\u5757\uff0c\u6267\u884c\u5b8cexcept\u540e\uff0c\u5982\u679c\u6709finally\u8bed\u53e5\u5757\uff0c\u5219\u6267\u884cfinally\u8bed\u53e5\u5757\uff0c\u81f3\u6b64\uff0c\u6267\u884c\u5b8c\u6bd5\u3002

\u4e0a\u9762\u7684\u4ee3\u7801\u5728\u8ba1\u7b9710 / 0\u65f6\u4f1a\u4ea7\u751f\u4e00\u4e2a\u9664\u6cd5\u8fd0\u7b97\u9519\u8bef\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try...
except: integer division or modulo by zero
finally...
END


\u4ece\u8f93\u51fa\u53ef\u4ee5\u770b\u5230\uff0c\u5f53\u9519\u8bef\u53d1\u751f\u65f6\uff0c\u540e\u7eed\u8bed\u53e5print 'result:', r\u4e0d\u4f1a\u88ab\u6267\u884c\uff0cexcept\u7531\u4e8e\u6355\u83b7\u5230ZeroDivisionError\uff0c\u56e0\u6b64\u88ab\u6267\u884c\u3002\u6700\u540e\uff0cfinally\u8bed\u53e5\u88ab\u6267\u884c\u3002\u7136\u540e\uff0c\u7a0b\u5e8f\u7ee7\u7eed\u6309\u7167\u6d41\u7a0b\u5f80\u4e0b\u8d70\u3002

\u5982\u679c\u628a\u9664\u65700\u6539\u62102\uff0c\u5219\u6267\u884c\u7ed3\u679c\u5982\u4e0b\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try...
result: 5
finally...
END


\u7531\u4e8e\u6ca1\u6709\u9519\u8bef\u53d1\u751f\uff0c\u6240\u4ee5except\u8bed\u53e5\u5757\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u4f46\u662ffinally\u5982\u679c\u6709\uff0c\u5219\u4e00\u5b9a\u4f1a\u88ab\u6267\u884c\uff08\u53ef\u4ee5\u6ca1\u6709finally\u8bed\u53e5\uff09\u3002

\u4f60\u8fd8\u53ef\u4ee5\u731c\u6d4b\uff0c\u9519\u8bef\u5e94\u8be5\u6709\u5f88\u591a\u79cd\u7c7b\uff0c\u5982\u679c\u53d1\u751f\u4e86\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u5e94\u8be5\u7531\u4e0d\u540c\u7684except\u8bed\u53e5\u5757\u5904\u7406\u3002\u6ca1\u9519\uff0c\u53ef\u4ee5\u6709\u591a\u4e2aexcept\u6765\u6355\u83b7\u4e0d\u540c\u7c7b\u578b\u7684\u9519\u8bef\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try:
print 'try...'
r = 10 / int('a')
print 'result:', r
except ValueError, e:
print 'ValueError:', e
except ZeroDivisionError, e:
print 'ZeroDivisionError:', e
finally:
print 'finally...'
print 'END'


int()\u51fd\u6570\u53ef\u80fd\u4f1a\u629b\u51faValueError\uff0c\u6240\u4ee5\u6211\u4eec\u7528\u4e00\u4e2aexcept\u6355\u83b7ValueError\uff0c\u7528\u53e6\u4e00\u4e2aexcept\u6355\u83b7ZeroDivisionError\u3002

\u6b64\u5916\uff0c\u5982\u679c\u6ca1\u6709\u9519\u8bef\u53d1\u751f\uff0c\u53ef\u4ee5\u5728except\u8bed\u53e5\u5757\u540e\u9762\u52a0\u4e00\u4e2aelse\uff0c\u5f53\u6ca1\u6709\u9519\u8bef\u53d1\u751f\u65f6\uff0c\u4f1a\u81ea\u52a8\u6267\u884celse\u8bed\u53e5\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try:
print 'try...'
r = 10 / int('a')
print 'result:', r
except ValueError, e:
print 'ValueError:', e
except ZeroDivisionError, e:
print 'ZeroDivisionError:', e
else:
print 'no error!'
finally:
print 'finally...'
print 'END'


Python\u7684\u9519\u8bef\u5176\u5b9e\u4e5f\u662fclass\uff0c\u6240\u6709\u7684\u9519\u8bef\u7c7b\u578b\u90fd\u7ee7\u627f\u81eaBaseException\uff0c\u6240\u4ee5\u5728\u4f7f\u7528except\u65f6\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b83\u4e0d\u4f46\u6355\u83b7\u8be5\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u8fd8\u628a\u5176\u5b50\u7c7b\u4e5f\u201c\u4e00\u7f51\u6253\u5c3d\u201d\u3002\u6bd4\u5982\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try:
foo()
except StandardError, e:
print 'StandardError'
except ValueError, e:
print 'ValueError'


\u7b2c\u4e8c\u4e2aexcept\u6c38\u8fdc\u4e5f\u6355\u83b7\u4e0d\u5230ValueError\uff0c\u56e0\u4e3aValueError\u662fStandardError\u7684\u5b50\u7c7b\uff0c\u5982\u679c\u6709\uff0c\u4e5f\u88ab\u7b2c\u4e00\u4e2aexcept\u7ed9\u6355\u83b7\u4e86\u3002

Python\u6240\u6709\u7684\u9519\u8bef\u90fd\u662f\u4eceBaseException\u7c7b\u6d3e\u751f\u7684
\u4f7f\u7528try...except\u6355\u83b7\u9519\u8bef\u8fd8\u6709\u4e00\u4e2a\u5de8\u5927\u7684\u597d\u5904\uff0c\u5c31\u662f\u53ef\u4ee5\u8de8\u8d8a\u591a\u5c42\u8c03\u7528\uff0c\u6bd4\u5982\u51fd\u6570main()\u8c03\u7528foo()\uff0cfoo()\u8c03\u7528bar()\uff0c\u7ed3\u679cbar()\u51fa\u9519\u4e86\uff0c\u8fd9\u65f6\uff0c\u53ea\u8981main()\u6355\u83b7\u5230\u4e86\uff0c\u5c31\u53ef\u4ee5\u5904\u7406\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

def foo(s):
return 10 / int(s)

def bar(s):
return foo(s) * 2
def main():
try:
bar('0')
except StandardError, e:
print 'Error!'
finally:
print 'finally...'


\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0d\u9700\u8981\u5728\u6bcf\u4e2a\u53ef\u80fd\u51fa\u9519\u7684\u5730\u65b9\u53bb\u6355\u83b7\u9519\u8bef\uff0c\u53ea\u8981\u5728\u5408\u9002\u7684\u5c42\u6b21\u53bb\u6355\u83b7\u9519\u8bef\u5c31\u53ef\u4ee5\u4e86\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5c31\u5927\u5927\u51cf\u5c11\u4e86\u5199try...except...finally\u7684\u9ebb\u70e6\u3002

\u8c03\u7528\u5806\u6808
\u5982\u679c\u9519\u8bef\u6ca1\u6709\u88ab\u6355\u83b7\uff0c\u5b83\u5c31\u4f1a\u4e00\u76f4\u5f80\u4e0a\u629b\uff0c\u6700\u540e\u88abPython\u89e3\u91ca\u5668\u6355\u83b7\uff0c\u6253\u5370\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\uff0c\u7136\u540e\u7a0b\u5e8f\u9000\u51fa\u3002\u6765\u770b\u770berr.py\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

# err.py:
def foo(s):
return 10 / int(s)

def bar(s):
return foo(s) * 2
def main():
bar('0')
main()


\u6267\u884c\uff0c\u7ed3\u679c\u5982\u4e0b\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

$ python err.py
Traceback (most recent call last):
File "err.py", line 11, in
main()
File "err.py", line 9, in main
bar('0')
File "err.py", line 6, in bar
return foo(s) * 2
File "err.py", line 3, in foo
return 10 / int(s)
ZeroDivisionError: integer division or modulo by zero


\u51fa\u9519\u5e76\u4e0d\u53ef\u6015\uff0c\u53ef\u6015\u7684\u662f\u4e0d\u77e5\u9053\u54ea\u91cc\u51fa\u9519\u4e86\u3002\u89e3\u8bfb\u9519\u8bef\u4fe1\u606f\u662f\u5b9a\u4f4d\u9519\u8bef\u7684\u5173\u952e\u3002\u6211\u4eec\u4ece\u4e0a\u5f80\u4e0b\u53ef\u4ee5\u770b\u5230\u6574\u4e2a\u9519\u8bef\u7684\u8c03\u7528\u51fd\u6570\u94fe\uff1a

\u9519\u8bef\u4fe1\u606f\u7b2c1\u884c\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

Traceback (most recent call last):


\u544a\u8bc9\u6211\u4eec\u8fd9\u662f\u9519\u8bef\u7684\u8ddf\u8e2a\u4fe1\u606f\u3002

\u7b2c2\u884c\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

File "err.py", line 11, in
main()


\u8c03\u7528main()\u51fa\u9519\u4e86\uff0c\u5728\u4ee3\u7801\u6587\u4ef6err.py\u7684\u7b2c11\u884c\u4ee3\u7801\uff0c\u4f46\u539f\u56e0\u662f\u7b2c9\u884c\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

File "err.py", line 9, in main
bar('0')


\u8c03\u7528bar('0')\u51fa\u9519\u4e86\uff0c\u5728\u4ee3\u7801\u6587\u4ef6err.py\u7684\u7b2c9\u884c\u4ee3\u7801\uff0c\u4f46\u539f\u56e0\u662f\u7b2c6\u884c\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

File "err.py", line 6, in bar
return foo(s) * 2


\u539f\u56e0\u662freturn foo(s) * 2\u8fd9\u4e2a\u8bed\u53e5\u51fa\u9519\u4e86\uff0c\u4f46\u8fd9\u8fd8\u4e0d\u662f\u6700\u7ec8\u539f\u56e0\uff0c\u7ee7\u7eed\u5f80\u4e0b\u770b\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

File "err.py", line 3, in foo
return 10 / int(s)


\u539f\u56e0\u662freturn 10 / int(s)\u8fd9\u4e2a\u8bed\u53e5\u51fa\u9519\u4e86\uff0c\u8fd9\u662f\u9519\u8bef\u4ea7\u751f\u7684\u6e90\u5934\uff0c\u56e0\u4e3a\u4e0b\u9762\u6253\u5370\u4e86\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

ZeroDivisionError: integer division or modulo by zero


\u6839\u636e\u9519\u8bef\u7c7b\u578bZeroDivisionError\uff0c\u6211\u4eec\u5224\u65ad\uff0cint(s)\u672c\u8eab\u5e76\u6ca1\u6709\u51fa\u9519\uff0c\u4f46\u662fint(s)\u8fd4\u56de0\uff0c\u5728\u8ba1\u7b9710 / 0\u65f6\u51fa\u9519\uff0c\u81f3\u6b64\uff0c\u627e\u5230\u9519\u8bef\u6e90\u5934\u3002

\u8bb0\u5f55\u9519\u8bef
\u5982\u679c\u4e0d\u6355\u83b7\u9519\u8bef\uff0c\u81ea\u7136\u53ef\u4ee5\u8ba9Python\u89e3\u91ca\u5668\u6765\u6253\u5370\u51fa\u9519\u8bef\u5806\u6808\uff0c\u4f46\u7a0b\u5e8f\u4e5f\u88ab\u7ed3\u675f\u4e86\u3002\u65e2\u7136\u6211\u4eec\u80fd\u6355\u83b7\u9519\u8bef\uff0c\u5c31\u53ef\u4ee5\u628a\u9519\u8bef\u5806\u6808\u6253\u5370\u51fa\u6765\uff0c\u7136\u540e\u5206\u6790\u9519\u8bef\u539f\u56e0\uff0c\u540c\u65f6\uff0c\u8ba9\u7a0b\u5e8f\u7ee7\u7eed\u6267\u884c\u4e0b\u53bb\u3002
Python\u5185\u7f6e\u7684logging\u6a21\u5757\u53ef\u4ee5\u975e\u5e38\u5bb9\u6613\u5730\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

# err.py
import logging

def foo(s):
return 10 / int(s)
def bar(s):
return foo(s) * 2
def main():
try:
bar('0')
except StandardError, e:
logging.exception(e)
main()
print 'END'


\u540c\u6837\u662f\u51fa\u9519\uff0c\u4f46\u7a0b\u5e8f\u6253\u5370\u5b8c\u9519\u8bef\u4fe1\u606f\u540e\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u5e76\u6b63\u5e38\u9000\u51fa\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

$ python err.py
ERROR:root:integer division or modulo by zero
Traceback (most recent call last):
File "err.py", line 12, in main
bar('0')
File "err.py", line 8, in bar
return foo(s) * 2
File "err.py", line 5, in foo
return 10 / int(s)
ZeroDivisionError: integer division or modulo by zero
END


\u901a\u8fc7\u914d\u7f6e\uff0clogging\u8fd8\u53ef\u4ee5\u628a\u9519\u8bef\u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6\u91cc\uff0c\u65b9\u4fbf\u4e8b\u540e\u6392\u67e5\u3002

\u629b\u51fa\u9519\u8bef
\u56e0\u4e3a\u9519\u8bef\u662fclass\uff0c\u6355\u83b7\u4e00\u4e2a\u9519\u8bef\u5c31\u662f\u6355\u83b7\u5230\u8be5class\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002\u56e0\u6b64\uff0c\u9519\u8bef\u5e76\u4e0d\u662f\u51ed\u7a7a\u4ea7\u751f\u7684\uff0c\u800c\u662f\u6709\u610f\u521b\u5efa\u5e76\u629b\u51fa\u7684\u3002Python\u7684\u5185\u7f6e\u51fd\u6570\u4f1a\u629b\u51fa\u5f88\u591a\u7c7b\u578b\u7684\u9519\u8bef\uff0c\u6211\u4eec\u81ea\u5df1\u7f16\u5199\u7684\u51fd\u6570\u4e5f\u53ef\u4ee5\u629b\u51fa\u9519\u8bef\u3002
\u5982\u679c\u8981\u629b\u51fa\u9519\u8bef\uff0c\u9996\u5148\u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u9519\u8bef\u7684class\uff0c\u9009\u62e9\u597d\u7ee7\u627f\u5173\u7cfb\uff0c\u7136\u540e\uff0c\u7528raise\u8bed\u53e5\u629b\u51fa\u4e00\u4e2a\u9519\u8bef\u7684\u5b9e\u4f8b\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

# err.py
class FooError(StandardError):
pass

def foo(s):
n = int(s)
if n==0:
raise FooError('invalid value: %s' % s)
return 10 / n


\u6267\u884c\uff0c\u53ef\u4ee5\u6700\u540e\u8ddf\u8e2a\u5230\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u7684\u9519\u8bef\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

$ python err.py
Traceback (most recent call last):
...
__main__.FooError: invalid value: 0


\u53ea\u6709\u5728\u5fc5\u8981\u7684\u65f6\u5019\u624d\u5b9a\u4e49\u6211\u4eec\u81ea\u5df1\u7684\u9519\u8bef\u7c7b\u578b\u3002\u5982\u679c\u53ef\u4ee5\u9009\u62e9Python\u5df2\u6709\u7684\u5185\u7f6e\u7684\u9519\u8bef\u7c7b\u578b\uff08\u6bd4\u5982ValueError\uff0cTypeError\uff09\uff0c\u5c3d\u91cf\u4f7f\u7528Python\u5185\u7f6e\u7684\u9519\u8bef\u7c7b\u578b\u3002

\u6700\u540e\uff0c\u6211\u4eec\u6765\u770b\u53e6\u4e00\u79cd\u9519\u8bef\u5904\u7406\u7684\u65b9\u5f0f\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

# err.py
def foo(s):
n = int(s)
return 10 / n

def bar(s):
try:
return foo(s) * 2
except StandardError, e:
print 'Error!'
raise
def main():
bar('0')
main()


\u5728bar()\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u660e\u660e\u5df2\u7ecf\u6355\u83b7\u4e86\u9519\u8bef\uff0c\u4f46\u662f\uff0c\u6253\u5370\u4e00\u4e2aError!\u540e\uff0c\u53c8\u628a\u9519\u8bef\u901a\u8fc7raise\u8bed\u53e5\u629b\u51fa\u53bb\u4e86\uff0c\u8fd9\u4e0d\u6709\u75c5\u4e48\uff1f

\u5176\u5b9e\u8fd9\u79cd\u9519\u8bef\u5904\u7406\u65b9\u5f0f\u4e0d\u4f46\u6ca1\u75c5\uff0c\u800c\u4e14\u76f8\u5f53\u5e38\u89c1\u3002\u6355\u83b7\u9519\u8bef\u76ee\u7684\u53ea\u662f\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4fbf\u4e8e\u540e\u7eed\u8ffd\u8e2a\u3002\u4f46\u662f\uff0c\u7531\u4e8e\u5f53\u524d\u51fd\u6570\u4e0d\u77e5\u9053\u5e94\u8be5\u600e\u4e48\u5904\u7406\u8be5\u9519\u8bef\uff0c\u6240\u4ee5\uff0c\u6700\u6070\u5f53\u7684\u65b9\u5f0f\u662f\u7ee7\u7eed\u5f80\u4e0a\u629b\uff0c\u8ba9\u9876\u5c42\u8c03\u7528\u8005\u53bb\u5904\u7406\u3002
raise\u8bed\u53e5\u5982\u679c\u4e0d\u5e26\u53c2\u6570\uff0c\u5c31\u4f1a\u628a\u5f53\u524d\u9519\u8bef\u539f\u6837\u629b\u51fa\u3002\u6b64\u5916\uff0c\u5728except\u4e2draise\u4e00\u4e2aError\uff0c\u8fd8\u53ef\u4ee5\u628a\u4e00\u79cd\u7c7b\u578b\u7684\u9519\u8bef\u8f6c\u5316\u6210\u53e6\u4e00\u79cd\u7c7b\u578b\uff1a

\u590d\u5236\u4ee3\u7801\u4ee3\u7801\u5982\u4e0b:

try:
10 / 0
except ZeroDivisionError:
raise ValueError('input error!')


\u53ea\u8981\u662f\u5408\u7406\u7684\u8f6c\u6362\u903b\u8f91\u5c31\u53ef\u4ee5\uff0c\u4f46\u662f\uff0c\u51b3\u4e0d\u5e94\u8be5\u628a\u4e00\u4e2aIOError\u8f6c\u6362\u6210\u6beb\u4e0d\u76f8\u5e72\u7684ValueError\u3002

\u5c0f\u7ed3
Python\u5185\u7f6e\u7684try...except...finally\u7528\u6765\u5904\u7406\u9519\u8bef\u5341\u5206\u65b9\u4fbf\u3002\u51fa\u9519\u65f6\uff0c\u4f1a\u5206\u6790\u9519\u8bef\u4fe1\u606f\u5e76\u5b9a\u4f4d\u9519\u8bef\u53d1\u751f\u7684\u4ee3\u7801\u4f4d\u7f6e\u624d\u662f\u6700\u5173\u952e\u7684\u3002
\u7a0b\u5e8f\u4e5f\u53ef\u4ee5\u4e3b\u52a8\u629b\u51fa\u9519\u8bef\uff0c\u8ba9\u8c03\u7528\u8005\u6765\u5904\u7406\u76f8\u5e94\u7684\u9519\u8bef\u3002\u4f46\u662f\uff0c\u5e94\u8be5\u5728\u6587\u6863\u4e2d\u5199\u6e05\u695a\u53ef\u80fd\u4f1a\u629b\u51fa\u54ea\u4e9b\u9519\u8bef\uff0c\u4ee5\u53ca\u9519\u8bef\u4ea7\u751f\u7684\u539f\u56e0\u3002

无法连接 MAIL_HOST 导致的，你试一下

s = smtplib.SMPT(MAIL_HOST, timeout=2)

就会在2秒后因为超时而报错的。 先确认你所指定的 MAIL_HOST 的smtp服务打开吧。

如果别人的电脑没问题，那就说明你用的电脑无法连接到 MAIL_HOST （比如网络没有配好，防火墙等原因）

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