[英]AttributeError: 'module' object has no attribute python
I am fairly new to python and have tried installing python 2.7.9 following the steps described here . 我是python的新手,并尝试按照此处描述的步骤安装python 2.7.9。 The installation failed with the following error: 安装失败,并出现以下错误:
python make: *** [libinstall] Error 1
I tried reinstalling the previous version of python: 我尝试重新安装以前版本的python:
sudo apt-get install --reinstall python2.7-dev
The installation proceeded normally. 安装正常进行。 However, now, when trying to import hashlib I get the following errors: 但是,现在,当尝试导入hashlib时,我收到以下错误:
Traceback (most recent call last):
File "./server.py", line 5, in <module>
import hashlib
File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
_hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'
I am also unable to install any packages using pip as the only output provided is the following: 我也无法使用pip安装任何软件包,因为提供的唯一输出如下:
Traceback (most recent call last):
File "/usr/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources
I installed python-setuptools : 我安装了python-setuptools :
sudo apt-get install python-setuptools
pip still provides the same output regardless of the input. 无论输入如何, pip仍然提供相同的输出。 Following this question I ran: 跟着这个问题我跑了:
curl -O https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py
chmod +x ez_setup.py
python ez_setup.py
The output is: 输出是:
Traceback (most recent call last):
File "ez_setup.py", line 19, in <module>
import tempfile
File "/usr/lib/python2.7/tempfile.py", line 35, in <module>
from random import Random as _Random
File "/usr/lib/python2.7/random.py", line 49, in <module>
import hashlib as _hashlib
File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
_hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'
Where is the issue? 问题在哪里?
Edit #1: 编辑#1:
The output of sudo apt-get install --reinstall python2.7-dev seems normal: sudo apt-get install --reinstall python2.7-dev的输出似乎正常:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libjs-sphinxdoc linux-headers-generic linux-image-generic
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 310 not upgraded.
Need to get 0 B/269 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 219657 files and directories currently installed.)
Preparing to unpack .../python2.7-dev_2.7.6-8_amd64.deb ...
Unpacking python2.7-dev (2.7.6-8) over (2.7.6-8) ...
Processing triggers for man-db (2.6.7.1-1) ...
Setting up python2.7-dev (2.7.6-8) ...
Edit #2: 编辑#2:
I have found this question which tackles a similar issue. 我发现这个问题解决了类似的问题。 It points to this thread which uses a checkinstall in order to retrieve all written files and creating a .deb package from them: 它指向此线程使用checkinstall来检索所有写入的文件并从中创建.deb包:
sudo apt-get install checkinstall # install the checkinstall package
cd /home/user/Python-2.7.9
sudo checkinstall -D --fstrans=no make install # make the deb package
Upon running the last command the output provided is identical with the one given by make install : 运行最后一个命令后,提供的输出与make install给出的输出相同:
...
Listing /usr/lib/python2.7/xml/parsers ...
Compiling /usr/lib/python2.7/xml/parsers/__init__.py ...
Compiling /usr/lib/python2.7/xml/parsers/expat.py ...
Listing /usr/lib/python2.7/xml/sax ...
Compiling /usr/lib/python2.7/xml/sax/__init__.py ...
Compiling /usr/lib/python2.7/xml/sax/_exceptions.py ...
Compiling /usr/lib/python2.7/xml/sax/expatreader.py ...
Compiling /usr/lib/python2.7/xml/sax/handler.py ...
Compiling /usr/lib/python2.7/xml/sax/saxutils.py ...
Compiling /usr/lib/python2.7/xml/sax/xmlreader.py ...
Compiling /usr/lib/python2.7/xmllib.py ...
Compiling /usr/lib/python2.7/xmlrpclib.py ...
Compiling /usr/lib/python2.7/zipfile.py ...
make: *** [libinstall] Error 1
Edit #3: 编辑#3:
It appears that all scripts are unable to run. 似乎所有脚本都无法运行。 I am working on signing algorithms(used in bitcoin) and the tools mentioned here (bu, tx) are all outputting the same error: 我正在研究签名算法(用于比特币), 这里提到的工具(bu,tx)都输出相同的错误:
Traceback (most recent call last):
File "/usr/local/bin/bu", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources
Edit #4: 编辑#4:
I have also tried the approach mentioned here . 我也试过这里提到的方法。 The output of python get-pip.py is the following: python get-pip.py的输出如下:
Traceback (most recent call last):
File "get-pip.py", line 28, in <module>
import tempfile
File "/usr/lib/python2.7/tempfile.py", line 35, in <module>
from random import Random as _Random
File "/usr/lib/python2.7/random.py", line 49, in <module>
import hashlib as _hashlib
File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
_hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'
If I comment the line: 如果我评论该行:
import tempfile
then execution continues up to line 141: 然后执行继续到第141行:
Traceback (most recent call last):
File "get-pip.py", line 19892, in <module>
main()
File "get-pip.py", line 141, in main
tmpdir = tempfile.mkdtemp()
NameError: global name 'tempfile' is not defined
meaning that the import of the following libraries: 意思是导入以下库:
import os.path
import pkgutil
import shutil
import sys
import struct
# import tempfile
succeeds. 成功。 This makes me believe that the installation of python2.7.9 is only partially complete(as wisely suggested in the comments to this question). 这让我相信python2.7.9的安装只是部分完成(正如在这个问题的评论中明智地建议的那样)。
Edit #5: 编辑#5:
I have reran the configuration and compilation steps: 我已经重新配置了配置和编译步骤:
./configure --prefix=/usr \
--enable-shared \
--with-system-expat \
--with-system-ffi \
--enable-unicode=ucs4 &&
make
The builds terminates with: 构建终止于:
Python build finished, but the necessary bits to build these modules were not found:
bsddb185 dl imageop
sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
running build_scripts
Are these modules essential? 这些模块必不可少?
It's an old thread, but my answer might help others in the future. 这是一个老话题,但我的答案可能在将来帮助其他人。
Step 1. check _hashlib.openssl_md_meth_names through the following, and no error shows up. 步骤1.通过以下方法检查_hashlib.openssl_md_meth_names,并且不会显示错误。
$ python
Python 2.7.9 (default, Oct 20 2016, 07:39:46)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import _hashlib
>>> _hashlib.openssl_md_meth_names
frozenset(['SHA256', 'SHA512', 'dsaWithSHA', 'md4', 'sha256', 'sha512', 'RIPEMD160', 'md5', 'whirlpool', 'SHA1', 'SHA224', 'SHA', 'SHA384', 'ecdsa-with-SHA1', 'MD4', 'DSA', 'sha1', 'DSA-SHA', 'sha224', 'dsaEncryption', 'ripemd160', 'sha', 'MD5', 'sha384'])
>>>
Step 2: 第2步:
change the followng line: 改变以下行:
File "/usr/lib/python2.7/random.py", line 49, in <module>
import hashlib as _hashlib
into: 成:
import _hashlib
Then it's done. 然后它完成了。
File "/usr/lib/python2.7/hashlib.py", line 138, in _hashlib.openssl_md_meth_names) AttributeError: 'module' object has no attribute 'openssl_md_meth_names' 文件“/usr/lib/python2.7/hashlib.py”,第138行,在_hashlib.openssl_md_meth_names中)AttributeError:'module'对象没有属性'openssl_md_meth_names'
Can be fixed by running: 可以通过运行修复:
pip install hashlib
or 要么
easyinstall hashlib
or 要么
easy_install-2.7 hashlib
in my case, i am using virtualenv just copied virtualenv folder from old machine into new ... in my new when i tried to install pip packages it threw this error.. 在我的情况下,我使用virtualenv只是将virtualenv文件夹从旧机器复制到新...在我新的时候,当我尝试安装pip包时,它抛出了这个错误..
i resolved this issue by creating new virtualenv reinstalled pip packages once again... 我通过再次创建新的virtualenv重新安装的pip包解决了这个问题...
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