折腾：
期间，去用pip安装virtualenv，结果出错：
［已解决］CentOS中zsh: command not found: pip
然后再继续安装virtualenv：
jiandaoweixin pip install virtualenv /usr/lib/python2.6/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning. InsecurePlatformWarning You are using pip version 7.1.0, however version 8.1.2 is available. You should consider upgrading via the ‘pip install –upgrade pip’ command. Collecting virtualenv /usr/lib/python2.6/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning. InsecurePlatformWarning Downloading virtualenv-15.0.3-py2.py3-none-any.whl (3.5MB) 100% || 3.5MB 43kB/s Installing collected packages: virtualenv Successfully installed virtualenv-15.0.3 |
看看命令：
jiandaoweixin virtualenv –help Usage: virtualenv [OPTIONS] DEST_DIR Options: –version show program’s version number and exit -h, –help show this help message and exit -v, –verbose Increase verbosity. -q, –quiet Decrease verbosity. -p PYTHON_EXE, –python=PYTHON_EXE The Python interpreter to use, e.g., –python=python2.5 will use the python2.5 interpreter to create the new environment. The default is the interpreter that virtualenv was installed with (/usr/bin/python) –clear Clear out the non-root install and start from scratch. –no-site-packages DEPRECATED. Retained only for backward compatibility. Not having access to global site-packages is now the default behavior. –system-site-packages Give the virtual environment access to the global site-packages. –always-copy Always copy files rather than symlinking. –unzip-setuptools Unzip Setuptools when installing it. –relocatable Make an EXISTING virtualenv environment relocatable. This fixes up scripts and makes all .pth files relative. –no-setuptools Do not install setuptools in the new virtualenv. –no-pip Do not install pip in the new virtualenv. –no-wheel Do not install wheel in the new virtualenv. –extra-search-dir=DIR Directory to look for setuptools/pip distributions in. This option can be used multiple times. –download Download preinstalled packages from PyPI. –no-download, –never-download Do not download preinstalled packages from PyPI. –prompt=PROMPT Provides an alternative prompt prefix for this environment. –setuptools DEPRECATED. Retained only for backward compatibility. This option has no effect. –distribute DEPRECATED. Retained only for backward compatibility. This option has no effect. jiandaoweixin |
然后去安装：
jiandaoweixin virtualenv jiandaoweixin New python executable in /usr/share/nginx/html/jiandaoweixin/jiandaoweixin/bin/python Installing setuptools, pip, wheel…done. jiandaoweixin ll total 4.0K drwxr-xr-x 5 root root 4.0K Aug 10 17:47 jiandaoweixin jiandaoweixin cd jiandaoweixin jiandaoweixin ll total 16K drwxr-xr-x 2 root root 4.0K Aug 10 17:47 bin drwxr-xr-x 2 root root 4.0K Aug 10 17:46 include drwxr-xr-x 3 root root 4.0K Aug 10 17:46 lib lrwxrwxrwx 1 root root 3 Aug 10 17:46 lib64 -> lib -rw-r–r– 1 root root 60 Aug 10 17:47 pip-selfcheck.json jiandaoweixin ll bin total 56K -rw-r–r– 1 root root 2.1K Aug 10 17:47 activate -rw-r–r– 1 root root 1.1K Aug 10 17:47 activate.csh -rw-r–r– 1 root root 2.2K Aug 10 17:47 activate.fish -rw-r–r– 1 root root 1.2K Aug 10 17:47 activate_this.py -rwxr-xr-x 1 root root 277 Aug 10 17:46 easy_install -rwxr-xr-x 1 root root 277 Aug 10 17:46 easy_install-2.6 -rwxr-xr-x 1 root root 249 Aug 10 17:46 pip -rwxr-xr-x 1 root root 249 Aug 10 17:46 pip2 -rwxr-xr-x 1 root root 249 Aug 10 17:46 pip2.6 -rwxr-xr-x 1 root root 8.9K Aug 10 17:46 python lrwxrwxrwx 1 root root 6 Aug 10 17:46 python2 -> python lrwxrwxrwx 1 root root 6 Aug 10 17:46 python2.6 -> python -rwxr-xr-x 1 root root 2.4K Aug 10 17:47 python-config -rwxr-xr-x 1 root root 256 Aug 10 17:46 wheel |
(jiandaoweixin) jiandaoweixin which python /usr/share/nginx/html/jiandaoweixin/jiandaoweixin/bin/python (jiandaoweixin) jiandaoweixin deactivate jiandaoweixin which python /usr/bin/python jiandaoweixin source bin/activate (jiandaoweixin) jiandaoweixin which python /usr/share/nginx/html/jiandaoweixin/jiandaoweixin/bin/python (jiandaoweixin) jiandaoweixin |
可以通过：
source bin/activate
进入虚拟环境
通过：
deactivate
退出虚拟环境了。
然后再去折腾：virtualenvwrapper
［记录］CentOS中安装和使用virtualenvwrapper
然后后来，不小心把virtualenv的环境删除了。
需要重新建立环境。
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