缺少python bz2模块

Question

我已经在我的主目录中安装了。

[spatel@~ dev1]$ /home/spatel/python-2.7.3/bin/python -V
Python 2.7.3

我正在尝试运行一个需要Python2.7.x版本的脚本，但是我得到了missing bz2错误

[spatel@~ dev1]$ ./import_logs.py
Traceback (most recent call last):
  File "./import_logs.py", line 13, in <module>
    import bz2
ImportError: No module named bz2

我曾尝试安装bz2模块，但遇到很多错误

 [spatel@dev1 python-bz2-1.1]$ /home/spatel/python-2.7.3/bin/python setup.py install
    ...
    ...
    ...
    bz2.c:1765: error: âBZ_FINISH_OKâ undeclared (first use in this function)
    bz2.c:1765: warning: comparison between pointer and integer
    bz2.c:1771: error: âPyMemberDefâ has no member named âavail_outâ
    bz2.c:1778: error: âPyMemberDefâ has no member named ânext_outâ
    bz2.c:1778: error: âPyMemberDefâ has no member named âtotal_out_hi32â
    bz2.c:1778: error: âPyMemberDefâ has no member named âtotal_out_lo32â
    bz2.c:1778: error: invalid operands to binary +
    bz2.c:1778: warning: statement with no effect
    bz2.c:1779: error: âPyMemberDefâ has no member named âavail_outâ
    bz2.c:1779: error: âPyMemberDefâ has no member named ânext_outâ
    bz2.c:1779: error: invalid operands to binary -
    bz2.c:1779: error: invalid operands to binary -
    bz2.c:1779: warning: statement with no effect
    bz2.c:1783: error: âPyMemberDefâ has no member named âavail_outâ
    bz2.c:1784: error: âPyMemberDefâ has no member named âtotal_out_hi32â
    bz2.c:1784: error: âPyMemberDefâ has no member named âtotal_out_lo32â
    bz2.c:1784: warning: passing argument 2 of â_PyString_Resizeâ makes integer from pointer without a cast
    error: command 'gcc' failed with exit status 1

Answer 1

当您从源代码构建python时，您可能没有bz2头文件。

在Ubuntu/Debian上安装：

sudo apt-get install libbz2-dev

软呢帽：

sudo yum install bzip2-devel 

然后重新构建python。你可能会注意到，python在配置/构建时会检查很多库，如果你错过了其中的一些库，你可能就不会支持像bz2这样的库了。

你应该使用预编译的二进制文件来避免这种事情。Ubuntu12.04打包了python 2.7.3，这是你的脚本需要的版本。

Answer 2

在导入pandas时，我在Python3.8.2中发生了这种情况：import pandas as pd

导致出现以" error : ModuleNotFoundError: No module named‘_bz2“结尾的长错误消息。

通过执行以下两个bash命令解决了此问题：

sudo apt-get install libbz2-dev
sudo cp /usr/lib/python3.8/lib-dynload/_bz2.cpython-38-x86_64-linux-gnu.so  /usr/local/lib/python3.8/

然后它工作得很好。

Answer 3

在CentOS 7上，安装bzip2-devel：

sudo yum install  bzip2-devel

然后重新编译python。