Question

我在python 2.7.3系统（ipython 1.2）上正常运行Linux和ubuntu 12.04但是正在尝试安装课程所需的matplotlab的更新版本。< / p>

在终端中运行此代码行

user$ sudo easy_install -U distribute
user$ export PYTHONHOME=/usr/lib/python2.7/

现在，每当我尝试运行python或ipython时，我都会收到错误消息

ImportError: no module named site

如何解决/解决此问题？我迷路了。我查看了其他类似的问题，但没有其他人使用Linux，我不知道该怎么办。

Answer 1

PYTHONHOME

更改标准Python库的位置。默认情况下   在前缀/ lib / pythonversion和中搜索库   exec_prefix / lib / pythonversion，其中prefix和exec_prefix是   依赖于安装的目录，默认为/ usr / local。

当PYTHONHOME设置为单个目录时，其值将替换两者   前缀和exec_prefix。要为这些指定不同的值，请设置   PYTHONHOME前缀：exec_prefix。

尝试清理PYTHONHOME：

user$ export PYTHONHOME=

至于安装matplotlib，我建议如下：

sudo apt-get install python-matplotlib

（详情here）

Answer 2

尝试取消设置你的python路径......

在Linux / Mac中，您可以使用以下命令：

unset PYTHONPATH
unset PYTHONHOME

Answer 3

您可以unset PYTHONHOME使用系统默认值，或export PYTHONHOME=/usr指定Python将附加的前缀＆＃39; /lib/python2.7' （或者它恰好是什么版本）来定位它的库。

如果您export PYTHONHOME=/usr/lib/python2.7，Python会在不存在的文件夹/usr/lib/python2.7/lib/python2.7中查找库。

如果您export PYTHONHOME=，您告诉Python在当前工作目录中查找lib：

jcomeau@aspire:~$ PYTHONHOME= strace -estat64 /usr/bin/python
stat64("lib/python2.7/", 0xff870ee0)    = -1 ENOENT (No such file or directory)
stat64("lib/python2.7", 0xff870ee0)     = -1 ENOENT (No such file or directory)
stat64("lib", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
stat64("lib/python2.7/", 0xff873efc)    = -1 ENOENT (No such file or directory)
stat64("lib/python2.7/plat-i386-linux-gnu", 0xff870ee0) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7", 0xff870ee0)     = -1 ENOENT (No such file or directory)
stat64("lib", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
stat64("lib/python2.7/plat-i386-linux-gnu", 0xff873efc) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7/lib-tk", 0xff870ee0) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7", 0xff870ee0)     = -1 ENOENT (No such file or directory)
stat64("lib", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
stat64("lib/python2.7/lib-tk", 0xff873efc) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7/lib-old", 0xff870ee0) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7", 0xff870ee0)     = -1 ENOENT (No such file or directory)
stat64("lib", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
stat64("lib/python2.7/lib-old", 0xff873efc) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7/lib-dynload", 0xff870ee0) = -1 ENOENT (No such file or directory)
stat64("lib/python2.7", 0xff870ee0)     = -1 ENOENT (No such file or directory)
stat64("lib", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
stat64("lib/python2.7/lib-dynload", 0xff873efc) = -1 ENOENT (No such file or directory)
ImportError: No module named site

Python / IPython ImportError：没有名为site的模块

3 个答案: