blocks|key|2433069|text|在Windows上，这些信息可以通过WMI的网络适配器类获得。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2433070|在.NET+(例如，使用IronPython)中，这很容易使用：|2433071|ni+=+Windows.Networking.Connectivity.NetworkInformation
profile+=+ni.GetInternetConnectionProfile()
if+profile:
++++interface+=+profile.NetworkAdapter.IanaInterfaceType
++++if+interface+==+71:
++++++++do+WiFi+stuff
++++elif+interface+==+6:
++++++++do+Ethernet+stuff
++++else:
++++++++do+wtf+stuff|code-block|syntax|javascript|2433072|IanaInterfaceType是来自这份IANA清单的一个数字。(如果您想解析SNMP，可以使用以那种方式下载。)请注意，Windows可能会将一些较不常见/过时的适配器类型与以太网混为一谈，但您可能并不关心这一点。|style|CODE|2433073|对于旧版本的Windows+--我不确定Windows+7是否算“老版本”--您想要的是Win32_NetworkAdapter和朋友，而不是上面链接的MSFT_NetworkAdapter/NetworkAdapter，所以代码会有所不同。|2433074|特别是，获得提供默认internet连接的适配器更难，但更灵活，同时获取其类型更容易，但信息量更少。IIRC，至少在XP中是这样的，尽管Windows有一些“互联网连接”的概念，但是你不能通过WMI访问它--但是你可以访问所有的互联网连接，或者搜索/迭代你所关心的连接。这实际上更好，如果你有一个VPN，或坐在一个DMZ，或有多个网卡一次活动，等等。|2433075|因此，您要做的是搜索或迭代Win32_IP4RouteTable，以查找哪个连接路由处理您实际希望连接到的IP地址，或者使用Win32_NetworkAdapaterConfiguration查找您希望从哪个NIC处理的地址。无论哪种方式，您都会得到一个InterfaceIndex，您可以使用该InterfaceIndex查找Win32_NetworkAdapter。然后它的AdapterType是一个很好的字符串，您只需检查!=+"Wireless"。(我相信我从TechNet脚本中心的一个TechNet脚本中心示例中了解了所有这一切，然后自己将其移植到IronPython，但这是很久以前的事了，所以我可能记错了。无论如何，这些文档看起来比以前更完整了，所以这不应该是必要的。|2433076|没有.NET+(例如，使用标准CPython)，您必须使用web服务接口，或者与原生Win32+COM接口对话。|2433077|理论上，您可以通过ctypes直接与COM接口对话，但这是一个可怕的想法；您几乎可以肯定地希望在这方面使用pywin32。|2433078|更好的是，我建议在PyPI上查找包装器，比如这一个，而不是自己构建它。然后，代码应该与.NET一样简单。|2433079|下面是使用上面链接的WMI库和上面描述的与XP兼容的源地址方法的伪代码：|2433080|import+wmi
MY_IP+=+'10.1.2.3'
w+=+wmi.WMI()
for+nac+in+w.Win32_NetworkAdapterConfiguration():
++++if+MY_IP+in+nac.IPAddress:
++++++++idx+=+nac.InterfaceIndex
++++++++break
else:
++++oops,+do+something,+no+NIC+has+that+address
na+=+w.Win32_NetworkAdapter(InterfaceIndex=idx)
if+not+na:
++++oops,+unlikely+race+condition,+NIC+disabled+right+before+we+checked+it
if+na[0].AdapterType+==+'Wireless':
++++do+WiFi+stuff
elif+na[0].AdapterType.startswith('Ethernet'):
++++do+Ethernet+stuff
else:
++++who's+using+LocalTalk+in+2013?|2433081|应该可以搜索NetworkAddressConfiguration，但是我不知道如何在wmi库中搜索"IPAddress+contains+MY_IP“。使用=可能会在那里工作，谁知道；阅读教程来找出答案。|2433082|另一方面，按目标地址搜索应如下所示：|2433083|TARGET_IP+=+'10.10.10.10'
w+=+wmi.WMI()
rt+=+w.Win32_IP4RouteTable(Destination=TARGET_IP)
if+not+rt:
++++oops,+no+route+to+host
idx+=+rt[0].InterfaceIndex
#+same+as+above|2433084|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/hh872472%2528v=vs.85%2529.aspx|1|http://www.iana.org/assignments/smi-numbers/smi-numbers.xhtml#smi-numbers-5|2|http://www.iana.org/assignments/ianaiftype-mib/ianaiftype-mib|3|http://msdn.microsoft.com/en-us/library/aa394216%2528v=vs.85%2529.aspx|4|http://msdn.microsoft.com/en-us/library/aa394162%2528v=vs.85%2529.aspx|5|http://msdn.microsoft.com/en-us/library/aa394217%2528v=vs.85%2529.aspx|6|http://msdn.microsoft.com/en-us/library/aa394216%2528v=vs.85%2529.aspx|7|http://technet.microsoft.com/en-us/default.aspx|8|9|http://pywin32.sourceforge.net/|10|https://pypi.python.org/pypi/WMI/|11|http://timgolden.me.uk/python/wmi/tutorial.html^0|M|6|0|0|0|0|0|H|K|8|1|1E|7|2|0|18|K|24|J|2O|E|18|K|3|0|0|D|J|1Q|Y|3J|E|44|E|4K|K|59|B|5Z|D|D|J|4|1Q|Y|5|4K|K|6|6J|B|7|6X|B|8|0|0|9|6|1H|7|1H|7|9|0|M|3|A|0|0|0|17|3|27|1|2N|2|B|0|0|0^^$0|@$1|2|3|4|5|6|7|23|8|@]|9|@$A|24|B|25|1|26]]|C|$]]|$1|D|3|E|5|6|7|27|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|28|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|29|8|@$A|2A|B|2B|M|N]]|9|@$A|2C|B|2D|1|2E]|$A|2F|B|2G|1|2H]]|C|$]]|$1|O|3|P|5|6|7|2I|8|@$A|2J|B|2K|M|N]|$A|2L|B|2M|M|N]|$A|2N|B|2O|M|N]]|9|@$A|2P|B|2Q|1|2R]]|C|$]]|$1|Q|3|R|5|6|7|2S|8|@]|9|@]|C|$]]|$1|S|3|T|5|6|7|2T|8|@$A|2U|B|2V|M|N]|$A|2W|B|2X|M|N]|$A|2Y|B|2Z|M|N]|$A|30|B|31|M|N]|$A|32|B|33|M|N]|$A|34|B|35|M|N]|$A|36|B|37|M|N]]|9|@$A|38|B|39|1|3A]|$A|3B|B|3C|1|3D]|$A|3E|B|3F|1|3G]|$A|3H|B|3I|1|3J]|$A|3K|B|3L|1|3M]]|C|$]]|$1|U|3|V|5|6|7|3N|8|@]|9|@]|C|$]]|$1|W|3|X|5|6|7|3O|8|@$A|3P|B|3Q|M|N]|$A|3R|B|3S|M|N]]|9|@$A|3T|B|3U|1|3V]]|C|$]]|$1|Y|3|Z|5|6|7|3W|8|@]|9|@$A|3X|B|3Y|1|3Z]]|C|$]]|$1|10|3|11|5|6|7|40|8|@]|9|@]|C|$]]|$1|12|3|13|5|H|7|41|8|@]|9|@]|C|$I|J]]|$1|14|3|15|5|6|7|42|8|@$A|43|B|44|M|N]|$A|45|B|46|M|N]]|9|@$A|47|B|48|1|49]]|C|$]]|$1|16|3|17|5|6|7|4A|8|@]|9|@]|C|$]]|$1|18|3|19|5|H|7|4B|8|@]|9|@]|C|$I|J]]|$1|1A|3|-4|5|6|7|4C|8|@]|9|@]|C|$]]]|1B|$1C|$5|1D|1E|1F|C|$1G|1H]]|1I|$5|1D|1E|1F|C|$1G|1J]]|1K|$5|1D|1E|1F|C|$1G|1L]]|1M|$5|1D|1E|1F|C|$1G|1N]]|1O|$5|1D|1E|1F|C|$1G|1P]]|1Q|$5|1D|1E|1F|C|$1G|1R]]|1S|$5|1D|1E|1F|C|$1G|1T]]|1U|$5|1D|1E|1F|C|$1G|1V]]|1W|$5|1D|1E|1F|C|$1G|1V]]|1X|$5|1D|1E|1F|C|$1G|1Y]]|1Z|$5|1D|1E|1F|C|$1G|20]]|21|$5|1D|1E|1F|C|$1G|22]]]]

On Windows, this information is made available via WMI's <a href="http://msdn.microsoft.com/en-us/library/hh872472%28v=vs.85%29.aspx" rel="nofollow">Network Adapter Classes</a>.

In .NET (e.g., with IronPython), this is easy to use:

<pre><code>ni = Windows.Networking.Connectivity.NetworkInformation
profile = ni.GetInternetConnectionProfile()
if profile:
 interface = profile.NetworkAdapter.IanaInterfaceType
 if interface == 71:
 do WiFi stuff
 elif interface == 6:
 do Ethernet stuff
 else:
 do wtf stuff
</code></pre>

The <code>IanaInterfaceType</code> is a number from <a href="http://www.iana.org/assignments/smi-numbers/smi-numbers.xhtml#smi-numbers-5" rel="nofollow">this IANA list</a>. (I you want to parse SNMP MIBs, you can <a href="http://www.iana.org/assignments/ianaiftype-mib/ianaiftype-mib" rel="nofollow">download it that way</a>.) Note that Windows may lump some less common/obsolete adapter types in with Ethernet, but you probably don't care about that.

<hr>

For older versions of Windows—I'm not sure whether Windows 7 counts as "older" or not—you want <a href="http://msdn.microsoft.com/en-us/library/aa394216%28v=vs.85%29.aspx" rel="nofollow"><code>Win32_NetworkAdapter</code></a> and friends, not <code>MSFT_NetworkAdapter</code>/<code>NetworkAdapter</code> as linked above, so the code will be different.

In particular, getting the adapter that's supplying the default internet connection is harder, but more flexible, while getting its type is easier, but less informative. IIRC, at least in XP, even though Windows had some notion of "the internet connection", you couldn't access it through WMI—but you could access all internet connections, or search/iterate for the one you care about. Which is actually better if you've got a VPN, or are sitting on a DMZ, or have multiple NIC cards active at once, etc.

So, what you do is to search or iterate <a href="http://msdn.microsoft.com/en-us/library/aa394162%28v=vs.85%29.aspx" rel="nofollow"><code>Win32_IP4RouteTable</code></a> to find which connection route handles the IP address you actually want to connect to, or use <a href="http://msdn.microsoft.com/en-us/library/aa394217%28v=vs.85%29.aspx" rel="nofollow"><code>Win32_NetworkAdapaterConfiguration</code></a> to find which NIC handles the address you want to connect from. Either way, you will get an <code>InterfaceIndex</code>, and you can look up the <a href="http://msdn.microsoft.com/en-us/library/aa394216%28v=vs.85%29.aspx" rel="nofollow"><code>Win32_NetworkAdapter</code></a> with that <code>InterfaceIndex</code>. Then its <code>AdapterType</code> is a nice string that you can just check <code>!= "Wireless"</code>. (I believe I figured all of this out from a VBscript example at <a href="http://technet.microsoft.com/en-us/default.aspx" rel="nofollow">TechNet Script Center</a> and then ported it to IronPython myself, but it was a long time ago, so I may be remembering wrong. Anyway, the docs seem more complete than they did back then, so that shouldn't be necessary.)

<hr>

Without .NET (e.g., with standard CPython), you have to use either the web services interface, or talk to the native Win32 COM interface.

In theory, you could talk to the COM interface directly via <code>ctypes</code>, but that's a horrible idea; you almost certainly want <a href="http://pywin32.sourceforge.net" rel="nofollow"><code>pywin32</code></a> for that.

And, even better, I would suggest looking around on PyPI for wrappers, like <a href="https://pypi.python.org/pypi/WMI/" rel="nofollow">this one</a>, rather than building it yourself. Then, the code should be nearly as simple as with .NET.

<hr>

Here's some pseudcode using the WMI library linked above and the XP-compatible source-address method described above:

<pre><code>import wmi
MY_IP = '10.1.2.3'
w = wmi.WMI()
for nac in w.Win32_NetworkAdapterConfiguration():
 if MY_IP in nac.IPAddress:
 idx = nac.InterfaceIndex
 break
else:
 oops, do something, no NIC has that address
na = w.Win32_NetworkAdapter(InterfaceIndex=idx)
if not na:
 oops, unlikely race condition, NIC disabled right before we checked it
if na[0].AdapterType == 'Wireless':
 do WiFi stuff
elif na[0].AdapterType.startswith('Ethernet'):
 do Ethernet stuff
else:
 who's using LocalTalk in 2013?
</code></pre>

It should be possible to search the NetworkAddressConfiguration, but I have no idea how to search for "IPAddress contains MY_IP" in the <code>wmi</code> library. Using <code>=</code> might work there, who knows; read through the <a href="http://timgolden.me.uk/python/wmi/tutorial.html" rel="nofollow">tutorial</a> to find out.

Searching by target address, on the other hand, should be like this:

<pre><code>TARGET_IP = '10.10.10.10'
w = wmi.WMI()
rt = w.Win32_IP4RouteTable(Destination=TARGET_IP)
if not rt:
 oops, no route to host
idx = rt[0].InterfaceIndex
# same as above
</code></pre>

blocks|key|260938|text|使用WMI，您可以确定连接，而不需要本地机器IP。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|260939|使用NetConnectionID而不是AdapterType进行比较似乎是可行的。|offset|length|style|CODE|260940|在Windows+10上工作。|260941|import+wmi
w+=+wmi.WMI()
for+nac+in+w.Win32_NetworkAdapterConfiguration():
++++if+nac.IPEnabled:
++++++++idx+=+nac.InterfaceIndex
++++++++break
else:
++++print("oops,+do+something,+no+NIC+has+that+address")
na+=+w.Win32_NetworkAdapter(InterfaceIndex=idx)
if+not+na:
++++print("oops,+unlikely+race+condition,+NIC+disabled+right+before+we+checked+it")
if+'Wi'+in+na[0].NetConnectionID:
++++print("do+WiFi+stuff")
elif+'Ethernet'+in+na[0].NetConnectionID:
++++print("do+Ethernet+stuff")
else:
++++print("who's+using+LocalTalk+in+2013?")|code-block|syntax|javascript|260942|entityMap^0|0|2|F|K|B|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]|$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|X|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

Using WMI you can determine the connection without needing the local machine IP.
Use <code>NetConnectionID</code> instead of <code>AdapterType</code> for comparing seems to work.
Works on Windows 10.
<pre><code>import wmi
w = wmi.WMI()
for nac in w.Win32_NetworkAdapterConfiguration():
 if nac.IPEnabled:
 idx = nac.InterfaceIndex
 break
else:
 print(&quot;oops, do something, no NIC has that address&quot;)
na = w.Win32_NetworkAdapter(InterfaceIndex=idx)
if not na:
 print(&quot;oops, unlikely race condition, NIC disabled right before we checked it&quot;)
if 'Wi' in na[0].NetConnectionID:
 print(&quot;do WiFi stuff&quot;)
elif 'Ethernet' in na[0].NetConnectionID:
 print(&quot;do Ethernet stuff&quot;)
else:
 print(&quot;who's using LocalTalk in 2013?&quot;)
</code></pre>

I would like to know how to have a Python script determine how a computer is connected to a network. The reason for this is because the script becomes buggy if the connection speed is too slow, so I would like to show a warning if the user is connected via WiFi. 

The actual Python executable being run is located on my company's LAN, so this is why the connection speed matters. Additionally, since this executable cannot be run without a connection, I am not concerned with checking that the user is online. 

I know nothing about how Python interacts with things like this (or even if its possible), so please let me know if there's anything I can clarify. Thanks in advance

I am using Python 2.7.6 32-bit on Windows 7 64-bit (different bits because pyEnchant)

Determine if a computer is connected to internet via WiFi network or ethernet cable in Python

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想知道如何让Python脚本确定计算机是如何连接到网络的。之所以如此，是因为如果连接速度太慢，脚本就会出错，所以如果用户是通过WiFi连接的，我想给出一个警告。实际运行的Python可执行文件位于我公司的LAN上，因此连接速度很重要。此外，由于这个可执行文件不能在没有连接的情况下运行，所以我不关心检查用户是否联机。我...

问确定计算机是否通过WiFi网络或以太网电缆连接到internet。
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问确定计算机是否通过WiFi网络或以太网电缆连接到internet。EN