我的Ubuntu 12.04.5 LTS VM在/ usr / bin中已经有Python 2.7.3了：
$ ls -ld /usr/bin/py*
-rwxr-xr-x 1 root root 4124 Jun 18 2013 /usr/bin/pyclean
-rwxr-xr-x 1 root root 11933 Jun 18 2013 /usr/bin/pycompile
lrwxrwxrwx 1 root root 8 Jun 18 2013 /usr/bin/pydoc -> pydoc2.7
-rwxr-xr-x 1 root root 79 Oct 26 14:35 /usr/bin/pydoc2.7
lrwxrwxrwx 1 root root 12 Jun 18 2013 /usr/bin/pygettext -> pygettext2.7
-rwxr-xr-x 1 root root 22103 Oct 26 14:35 /usr/bin/pygettext2.7
-rwxr-xr-x 1 root root 217 Mar 9 2012 /usr/bin/pyhtmlizer
lrwxrwxrwx 1 root root 9 Jun 18 2013 /usr/bin/python -> python2.7
lrwxrwxrwx 1 root root 9 Jun 18 2013 /usr/bin/python2 -> python2.7
-rwxr-xr-x 1 root root 2997528 Oct 26 14:36 /usr/bin/python2.7
-rwxr-xr-x 1 root root 1652 Oct 26 14:35 /usr/bin/python2.7-config
lrwxrwxrwx 1 root root 29 Jun 18 2013 /usr/bin/pyversions -> ../share/python/pyversions.py
我昨天做了一个wget / configure / make / install of Python 2.7.6，并且pip安装了一些模块，比如braceexpand和pytz（使用/ usr / bin / pip）。
wget https://www.python.org/ftp/python/2.7.6/Python-2.7.6.tgz
tar xvfz Python-2.7.6.tgz
cd Python-2.7.6
./configure
make
sudo make install
# add more
sudo apt-get install python2.7-dev
wget https://pypi.python.org/packages/c7/14/c4ea891fd8943623dcb325ab1194a1473351b02b82c3c58c8a4179027fdb/python-cdb-0.35.tar.gz
sudo pip install python-cdb-0.35.tar.gz
sudo pip install pytz
sudo pip install braceexpand
sudo pip install html
所有模块都安装到/usr/local/lib/python2.7/dist-packages（并且是唯一的东西）
$ ls -l /usr/local/lib/python2.7/dist-packages/
total 200
drwxr-sr-x 2 root staff 4096 Dec 14 22:12 braceexpand-0.1.2.egg-info
-rwxr-xr-x 1 root staff 6218 Dec 14 22:12 braceexpand.py
-rwxr-xr-x 1 root staff 6842 Dec 14 22:43 braceexpand.pyc
-rwxr-xr-x 1 root staff 6842 Dec 14 22:43 braceexpand.pyo
-rwxr-xr-x 1 root staff 87794 Dec 14 22:14 cdbmodule.so
drwxr-sr-x 2 root staff 4096 Dec 14 22:13 html-1.16.egg-info
-rwxr-xr-x 1 root staff 19209 Dec 14 22:13 html.py
-rwxr-xr-x 1 root staff 22326 Dec 14 22:43 html.pyc
-rwxr-xr-x 1 root staff 22326 Dec 14 22:43 html.pyo
drwxr-sr-x 2 root staff 4096 Dec 14 22:14 python_cdb-0.35.egg-info
drwxr-sr-x 3 root staff 4096 Dec 14 22:34 pytz
drwxr-sr-x 2 root staff 4096 Dec 14 22:16 pytz-2016.10.egg-info
不是/usr/lib/python2.7/dist-packages（已经有很多其他模块）
$ ls -l /usr/lib/python2.7/dist-packages/
total 1968
drwxr-xr-x 3 root root 4096 Nov 6 2014 apt
-rw-r--r-- 1 root root 60240 Jan 24 2014 apt_inst.so
-rw-r--r-- 1 root root 346320 Jan 24 2014 apt_pkg.so
drwxr-xr-x 2 root root 4096 Nov 6 2014 aptsources
drwxr-xr-x 29 root root 4096 Nov 6 2014 boto
lrwxrwxrwx 1 root root 43 Jun 27 2013 boto-2.2.2.egg-info -> ../../../share/pyshared/boto-2.2.2.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 chardet
lrwxrwxrwx 1 root root 46 Dec 30 2011 chardet-2.0.1.egg-info -> ../../../share/pyshared/chardet-2.0.1.egg-info
drwxr-xr-x 7 root root 4096 Nov 6 2014 Cheetah
drwxr-xr-x 2 root root 4096 Nov 6 2014 Cheetah-2.4.4.egg-info
drwxr-xr-x 3 root root 4096 Jul 20 15:27 cloudinit
lrwxrwxrwx 1 root root 49 Oct 21 2014 cloud_init-0.6.3.egg-info -> ../../../share/pyshared/cloud_init-0.6.3.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 CommandNotFound
lrwxrwxrwx 1 root root 57 Apr 17 2012 command_not_found-0.2.44.egg-info -> ../../../share/pyshared/command_not_found-0.2.44.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 computerjanitor
drwxr-xr-x 2 root root 4096 Nov 6 2014 configobj-4.7.2.egg-info
lrwxrwxrwx 1 root root 36 Dec 30 2011 configobj.py -> ../../../share/pyshared/configobj.py
-rw-r--r-- 1 root root 65941 Nov 6 2014 configobj.pyc
drwxr-xr-x 9 root root 4096 Nov 6 2014 Crypto
drwxr-xr-x 2 root root 4096 Nov 6 2014 curl
drwxr-xr-x 3 root root 4096 Nov 6 2014 dbus
-rw-r--r-- 1 root root 163024 Jan 27 2012 _dbus_bindings.so
-rw-r--r-- 1 root root 10952 Jan 27 2012 _dbus_glib_bindings.so
lrwxrwxrwx 1 root root 33 Jan 25 2012 deb822.py -> ../../../share/pyshared/deb822.py
-rw-r--r-- 1 root root 317 Nov 6 2014 deb822.pyc
lrwxrwxrwx 1 root root 34 Mar 15 2012 debconf.py -> ../../../share/pyshared/debconf.py
-rw-r--r-- 1 root root 5888 Nov 6 2014 debconf.pyc
drwxr-xr-x 2 root root 4096 Nov 6 2014 debian
drwxr-xr-x 2 root root 4096 Nov 6 2014 debian_bundle
drwxr-xr-x 2 root root 4096 Dec 14 20:58 distribute-0.6.24dev_r0.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 DistUpgrade
lrwxrwxrwx 1 root root 39 Oct 22 2011 easy_install.py -> ../../../share/pyshared/easy_install.py
-rw-r--r-- 1 root root 315 Dec 14 20:59 easy_install.pyc
drwxr-xr-x 4 root root 4096 Nov 6 2014 euca2ools
lrwxrwxrwx 1 root root 48 Jun 4 2012 euca2ools-2.0.0.egg-info -> ../../../share/pyshared/euca2ools-2.0.0.egg-info
drwxr-xr-x 6 root root 4096 Nov 6 2014 gi
lrwxrwxrwx 1 root root 53 Dec 30 2011 GnuPGInterface-0.3.2.egg-info -> ../../../share/pyshared/GnuPGInterface-0.3.2.egg-info
lrwxrwxrwx 1 root root 41 Dec 30 2011 GnuPGInterface.py -> ../../../share/pyshared/GnuPGInterface.py
-rw-r--r-- 1 root root 22520 Nov 6 2014 GnuPGInterface.pyc
drwxr-xr-x 2 root root 4096 Nov 6 2014 httplib2
lrwxrwxrwx 1 root root 47 Sep 6 2013 httplib2-0.7.2.egg-info -> ../../../share/pyshared/httplib2-0.7.2.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 HweSupportStatus
lrwxrwxrwx 1 root root 40 Sep 13 2013 ipachangeconf.py -> ../../../share/pyshared/ipachangeconf.py
-rw-r--r-- 1 root root 16716 Nov 7 2014 ipachangeconf.pyc
drwxr-xr-x 5 root root 4096 Nov 6 2014 keyring
drwxr-xr-x 2 root root 4096 Nov 6 2014 keyring-0.9.2.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 LanguageSelector
drwxr-xr-x 2 root root 4096 Nov 6 2014 language_selector-0.1.egg-info
lrwxrwxrwx 1 root root 48 Sep 13 2013 language_support_pkgs.py -> ../../../share/pyshared/language_support_pkgs.py
-rw-r--r-- 1 root root 9733 Nov 6 2014 language_support_pkgs.pyc
drwxr-xr-x 4 root root 4096 Nov 6 2014 launchpadlib
drwxr-xr-x 2 root root 4096 Nov 6 2014 launchpadlib-1.9.12.egg-info
drwxr-xr-x 4 root root 4096 Nov 6 2014 lazr
drwxr-xr-x 2 root root 4096 Nov 6 2014 lazr.restfulclient-0.12.0.egg-info
lrwxrwxrwx 1 root root 59 Jun 14 2013 lazr.restfulclient-0.12.0-nspkg.pth -> ../../../share/pyshared/lazr.restfulclient-0.12.0-nspkg.pth
drwxr-xr-x 2 root root 4096 Nov 6 2014 lazr.uri-1.0.3.egg-info
lrwxrwxrwx 1 root root 48 Jan 25 2012 lazr.uri-1.0.3-nspkg.pth -> ../../../share/pyshared/lazr.uri-1.0.3-nspkg.pth
lrwxrwxrwx 1 root root 38 Jun 13 2013 lsb_release.py -> ../../../share/pyshared/lsb_release.py
-rw-r--r-- 1 root root 7587 Nov 6 2014 lsb_release.pyc
drwxr-xr-x 4 root root 4096 Nov 6 2014 M2Crypto
drwxr-xr-x 2 root root 4096 Nov 6 2014 M2Crypto-0.21.1.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 oauth
drwxr-xr-x 2 root root 4096 Nov 6 2014 oauth-1.0.1.egg-info
drwxr-xr-x 3 root root 4096 Nov 6 2014 OpenSSL
lrwxrwxrwx 1 root root 42 Mar 8 2012 PAM-0.4.2.egg-info -> ../../../share/pyshared/PAM-0.4.2.egg-info
-rw-r--r-- 1 root root 19640 Mar 8 2012 PAMmodule.so
drwxr-xr-x 2 root root 4096 Nov 6 2014 paramiko
lrwxrwxrwx 1 root root 49 Mar 28 2013 paramiko-1.7.7.1.egg-info -> ../../../share/pyshared/paramiko-1.7.7.1.egg-info
drwxr-xr-x 4 root root 4096 Dec 14 20:59 pip
drwxr-xr-x 2 root root 4096 Dec 14 20:58 pip-1.0.egg-info
lrwxrwxrwx 1 root root 40 Oct 22 2011 pkg_resources.py -> ../../../share/pyshared/pkg_resources.py
-rw-r--r-- 1 root root 94800 Nov 6 2014 pkg_resources.pyc
lrwxrwxrwx 1 root root 41 Oct 30 2014 problem_report.py -> ../../../share/pyshared/problem_report.py
-rw-r--r-- 1 root root 15479 Nov 6 2014 problem_report.pyc
lrwxrwxrwx 1 root root 47 Jun 27 2012 pycrypto-2.4.1.egg-info -> ../../../share/pyshared/pycrypto-2.4.1.egg-info
lrwxrwxrwx 1 root root 46 Dec 30 2011 pycurl-7.19.0.egg-info -> ../../../share/pyshared/pycurl-7.19.0.egg-info
-rw-r--r-- 1 root root 68880 Dec 30 2011 pycurl.so
lrwxrwxrwx 1 root root 47 Sep 23 2013 pyOpenSSL-0.12.egg-info -> ../../../share/pyshared/pyOpenSSL-0.12.egg-info
lrwxrwxrwx 1 root root 45 Dec 30 2011 pyserial-2.5.egg-info -> ../../../share/pyshared/pyserial-2.5.egg-info
-rw-r--r-- 1 root root 447336 Sep 13 2013 pysss.so
lrwxrwxrwx 1 root root 58 Jan 24 2014 python_apt-0.8.3ubuntu7.2.egg-info -> ../../../share/pyshared/python_apt-0.8.3ubuntu7.2.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 python_debian-0.1.21ubuntu1.egg-info
lrwxrwxrwx 1 root root 44 Dec 16 2011 PyYAML-3.10.egg-info -> ../../../share/pyshared/PyYAML-3.10.egg-info
-rw-r--r-- 1 root root 119 Oct 26 14:35 README
drwxr-xr-x 2 root root 4096 Nov 6 2014 serial
drwxr-xr-x 4 root root 4096 Dec 14 20:59 setuptools
lrwxrwxrwx 1 root root 43 Oct 22 2011 setuptools.egg-info -> ../../../share/pyshared/setuptools.egg-info
lrwxrwxrwx 1 root root 38 Oct 22 2011 setuptools.pth -> ../../../share/pyshared/setuptools.pth
drwxr-xr-x 3 root root 4096 Nov 6 2014 simplejson
lrwxrwxrwx 1 root root 49 Jan 30 2012 simplejson-2.3.2.egg-info -> ../../../share/pyshared/simplejson-2.3.2.egg-info
lrwxrwxrwx 1 root root 31 Oct 22 2011 site.py -> ../../../share/pyshared/site.py
-rw-r--r-- 1 root root 1725 Dec 14 20:59 site.pyc
-rw-r--r-- 1 root root 34912 Feb 9 2012 _snackmodule.so
lrwxrwxrwx 1 root root 32 Feb 9 2012 snack.py -> ../../../share/pyshared/snack.py
-rw-r--r-- 1 root root 39925 Nov 6 2014 snack.pyc
drwxr-xr-x 2 root root 4096 Nov 6 2014 softwareproperties
lrwxrwxrwx 1 root root 37 Sep 13 2013 SSSDConfig.py -> ../../../share/pyshared/SSSDConfig.py
-rw-r--r-- 1 root root 64074 Nov 7 2014 SSSDConfig.pyc
lrwxrwxrwx 1 root root 46 Sep 13 2013 sssd_upgrade_config.py -> ../../../share/pyshared/sssd_upgrade_config.py
-rw-r--r-- 1 root root 14614 Nov 7 2014 sssd_upgrade_config.pyc
drwxr-xr-x 13 root root 4096 Nov 6 2014 tests
drwxr-xr-x 16 root root 4096 Nov 7 2014 twisted
lrwxrwxrwx 1 root root 52 Mar 9 2012 Twisted_Core-11.1.0.egg-info -> ../../../share/pyshared/Twisted_Core-11.1.0.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 ufw
lrwxrwxrwx 1 root root 45 Apr 5 2012 ufw-0.31.1_1.egg-info -> ../../../share/pyshared/ufw-0.31.1_1.egg-info
lrwxrwxrwx 1 root root 56 Nov 14 2012 unattended_upgrades-0.1.egg-info -> ../../../share/pyshared/unattended_upgrades-0.1.egg-info
drwxr-xr-x 3 root root 4096 Nov 6 2014 UpdateManager
lrwxrwxrwx 1 root root 35 Dec 30 2011 validate.py -> ../../../share/pyshared/validate.py
-rw-r--r-- 1 root root 46734 Nov 6 2014 validate.pyc
drwxr-xr-x 3 root root 4096 Nov 6 2014 wadllib
drwxr-xr-x 2 root root 4096 Nov 6 2014 wadllib-1.3.0.egg-info
drwxr-xr-x 2 root root 4096 Nov 6 2014 xapian
drwxr-xr-x 2 root root 4096 Nov 6 2014 yaml
-rw-r--r-- 1 root root 185456 Dec 16 2011 _yaml.so
drwxr-xr-x 3 root root 4096 Nov 6 2014 zope
drwxr-xr-x 2 root root 4096 Nov 6 2014 zope.interface-3.6.1.egg-info
lrwxrwxrwx 1 root root 54 Dec 31 2011 zope.interface-3.6.1-nspkg.pth -> ../../../share/pyshared/zope.interface-3.6.1-nspkg.pth
但是/usr/local/lib/python2.7/dist-packages中的新模块只能使用/ usr / bin / python（仍为2.7.3）导入。
使用默认的python（/ usr / local / bin / python，2.7.6）是我想要运行的版本，但是没有看到要导入的模块。
我做错了什么（我应该升级而不是wget / make / install吗？）
我现在该如何解决？
答案 0 :(得分：0)
好问题，拥有日志和信息很好：）
如果我理解正确，那么模块是不是安装到你想要的Python版本？
若是，请尝试：
Scripts/文件夹。 （所以你的目录应该是/usr/lib/python<Python Version>/Scripts/）sudo python pip.py install <Module Name>。现在模块应该直接安装到那个Python版本。
如果这不是您要找的答案，请发表评论。
希望这有帮助！