Eventlet - ImportError:没有名为dnskeybase的模块
Eventlet - ImportError:没有名为dnskeybase的模块
提问于 2019-03-13 23:34:41
我不能在我的生产系统上输入事件。它说没有模块名为dnskeybase。
# python scraper.py
Traceback (most recent call last):
File "scraper.py", line 7, in <module>
import eventlet
File "/usr/lib/python2.7/site-packages/eventlet/__init__.py", line 10, in <module>
from eventlet import convenience
File "/usr/lib/python2.7/site-packages/eventlet/convenience.py", line 7, in <module>
from eventlet.green import socket
File "/usr/lib/python2.7/site-packages/eventlet/green/socket.py", line 21, in <module>
from eventlet.support import greendns
File "/usr/lib/python2.7/site-packages/eventlet/support/greendns.py", line 67, in <module>
setattr(dns.rdtypes, pkg, import_patched('dns.rdtypes.' + pkg))
File "/usr/lib/python2.7/site-packages/eventlet/support/greendns.py", line 59, in import_patched
return patcher.import_patched(module_name, **modules)
File "/usr/lib/python2.7/site-packages/eventlet/patcher.py", line 120, in import_patched
*additional_modules + tuple(kw_additional_modules.items()))
File "/usr/lib/python2.7/site-packages/eventlet/patcher.py", line 94, in inject
module = __import__(module_name, {}, {}, module_name.split('.')[:-1])
ImportError: No module named dnskeybase所以我试着安装它..。
# pip install dnskeybase
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting dnskeybase
Could not find a version that satisfies the requirement dnskeybase (from versions: )
No matching distribution found for dnskeybase以及：
# pip install dnspython
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Requirement already satisfied: dnspython in /usr/lib/python2.7/site-packages (1.16.0)以及事件版本/安装：
# pip install eventlet
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting eventlet
Using cached https://files.pythonhosted.org/packages/86/7e/96e1412f96eeb2f2eca9342dcc4d5bc9305880a448b603b0a8e54439b71c/eventlet-0.24.1-py2.py3-none-any.whl
Requirement already satisfied: monotonic>=1.4 in /usr/lib/python2.7/site-packages (from eventlet) (1.5)
Requirement already satisfied: six>=1.10.0 in /usr/lib/python2.7/site-packages (from eventlet) (1.12.0)
Requirement already satisfied: dnspython>=1.15.0 in /usr/lib/python2.7/site-packages (from eventlet) (1.16.0)
Requirement already satisfied: greenlet>=0.3 in /usr/lib64/python2.7/site-packages (from eventlet) (0.4.15)
Requirement already satisfied: enum34; python_version < "3.4" in /usr/lib/python2.7/site-packages (from eventlet) (1.1.6)
Installing collected packages: eventlet
Successfully installed eventlet-0.24.1有什么想法吗？
回答 1
Stack Overflow用户
发布于 2019-04-02 18:26:30
您的本地dnspython包安装中断，或者在不同的位置被一个不完整的dns.rdtypes包所掩盖。它缺少(至少) dns.rdtypes.dnskeybase模块；它只是另一个纯Python模块，没有什么特别之处。
异常消息可能看起来有点混乱，因为它没有命名完整的路径。正在执行以下Python表达式的道义等价物：
module_name = 'dns.rdtypes.dnskeybase'
__import__(module_name, {}, {}, module_name.split('.')[:-1])它使用函数从dnskeybase包动态导入dnskeybase模块。然而，当它丢失时，引发的ImportError: No module named dnskeybase异常不包括dns.rdtypes组件，尽管这是尝试导入的唯一位置。到目前为止，eventlet.support.greendns模块已经导入了dns.rdtypes本身，因此我们知道，对于您的安装来说，这个包至少是存在的，而且是重要的。
包的正常完整安装会添加一个site-packages/dns目录，其中包含以下文件(以及相应的.pyc字节缓存文件)：
lib/python2.7/site-packages/dns
├── __init__.py
├── _compat.py
├── dnssec.py
├── e164.py
├── edns.py
├── entropy.py
├── exception.py
├── flags.py
├── grange.py
├── hash.py
├── inet.py
├── ipv4.py
├── ipv6.py
├── message.py
├── name.py
├── namedict.py
├── node.py
├── opcode.py
├── py.typed
├── query.py
├── rcode.py
├── rdata.py
├── rdataclass.py
├── rdataset.py
├── rdatatype.py
├── rdtypes
│ ├── ANY
│ │ ├── AFSDB.py
│ │ ├── AVC.py
│ │ ├── CAA.py
│ │ ├── CDNSKEY.py
│ │ ├── CDS.py
│ │ ├── CERT.py
│ │ ├── CNAME.py
│ │ ├── CSYNC.py
│ │ ├── DLV.py
│ │ ├── DNAME.py
│ │ ├── DNSKEY.py
│ │ ├── DS.py
│ │ ├── EUI48.py
│ │ ├── EUI64.py
│ │ ├── GPOS.py
│ │ ├── HINFO.py
│ │ ├── HIP.py
│ │ ├── ISDN.py
│ │ ├── LOC.py
│ │ ├── MX.py
│ │ ├── NS.py
│ │ ├── NSEC.py
│ │ ├── NSEC3.py
│ │ ├── NSEC3PARAM.py
│ │ ├── OPENPGPKEY.py
│ │ ├── PTR.py
│ │ ├── RP.py
│ │ ├── RRSIG.py
│ │ ├── RT.py
│ │ ├── SOA.py
│ │ ├── SPF.py
│ │ ├── SSHFP.py
│ │ ├── TLSA.py
│ │ ├── TXT.py
│ │ ├── URI.py
│ │ ├── X25.py
│ │ └── __init__.py
│ ├── CH
│ │ ├── A.py
│ │ └── __init__.py
│ ├── IN
│ │ ├── A.py
│ │ ├── AAAA.py
│ │ ├── APL.py
│ │ ├── DHCID.py
│ │ ├── IPSECKEY.py
│ │ ├── KX.py
│ │ ├── NAPTR.py
│ │ ├── NSAP.py
│ │ ├── NSAP_PTR.py
│ │ ├── PX.py
│ │ ├── SRV.py
│ │ ├── WKS.py
│ │ └── __init__.py
│ ├── __init__.py
│ ├── dnskeybase.py
│ ├── dsbase.py
│ ├── euibase.py
│ ├── mxbase.py
│ ├── nsbase.py
│ └── txtbase.py
├── renderer.py
├── resolver.py
├── reversename.py
├── rrset.py
├── set.py
├── tokenizer.py
├── tsig.py
├── tsigkeyring.py
├── ttl.py
├── update.py
├── version.py
├── wiredata.py
└── zone.py正确安装的dnspython版本1.16.0为文件树中的MD5源文件生成以下MD5校验和：
$ ( cd /lib/python2.7/site-packages/dns; export LC_ALL=C; find . -name \*.py -exec md5sum {} \; | sort -k 2 | md5sum )
28e20d8474f4f07287c305dbd5dae8b8 -如果运行相同的命令，得到不同的输出，则本地安装是不完整的。
我建议您重新安装这个包；这在pip install --ignore-installed中是很简单的。
$ pip install --ignore-installed dnspython
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting dnspython
Using cached https://files.pythonhosted.org/packages/ec/d3/3aa0e7213ef72b8585747aa0e271a9523e713813b9a20177ebe1e939deb0/dnspython-1.16.0-py2.py3-none-any.whl
Installing collected packages: dnspython
Successfully installed dnspython-1.16.0如果您在重新安装之后仍然遇到问题，或者您获得了文件树的相同的MD5校验和，那么您的python模块搜索路径上有一个不同的dns.rdtypes包，它掩盖了正确的版本。
您可以通过添加以下内容找到该包：
import dns.rdtypes
print(dns.rdtypes.__file__)在scraper.py脚本的顶部，在import eventlet行之前。请随时使用import sys; sys.exit()后，以防止完全回溯。打印的文件应该告诉您在哪里查找干扰的流氓包。找到该目录后，重命名该dns目录，或调整您的PYTHONPATH环境变量，使其不包括dns目录所在的目录，或完全删除该目录。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/55152733
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