linux - missing python bz2 module

Question

I have installed at my home directory.

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

I am trying to run one script which required python 2.7.x version, and i am getting missing bz2 error

[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

I have tried to install bz2 module but i got lots of error

 [spatel@dev1 python-bz2-1.1]$ /home/spatel/python-2.7.3/bin/python setup.py install
    ...
    ...
    ...
    bz2.c:1765: error: aBZ_FINISH_OKa undeclared (first use in this function)
    bz2.c:1765: warning: comparison between pointer and integer
    bz2.c:1771: error: aPyMemberDefa has no member named aavail_outa
    bz2.c:1778: error: aPyMemberDefa has no member named anext_outa
    bz2.c:1778: error: aPyMemberDefa has no member named atotal_out_hi32a
    bz2.c:1778: error: aPyMemberDefa has no member named atotal_out_lo32a
    bz2.c:1778: error: invalid operands to binary +
    bz2.c:1778: warning: statement with no effect
    bz2.c:1779: error: aPyMemberDefa has no member named aavail_outa
    bz2.c:1779: error: aPyMemberDefa has no member named anext_outa
    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: aPyMemberDefa has no member named aavail_outa
    bz2.c:1784: error: aPyMemberDefa has no member named atotal_out_hi32a
    bz2.c:1784: error: aPyMemberDefa has no member named atotal_out_lo32a
    bz2.c:1784: warning: passing argument 2 of a_PyString_Resizea makes integer from pointer without a cast
    error: command 'gcc' failed with exit status 1

Answer 1

Probably as you built python from source, you don't have bz2 headers.

Install them on Ubuntu/Debian:

sudo apt-get install libbz2-dev

Fedora:

sudo yum install bzip2-devel 

And build python again. You may notice that python checks for lots of libraries when configuring/building, if you miss some of them you probably will get no support for libs like bz2 on your case.

You should get prebuild binaries to avoid this kind of stuff. Ubuntu 12.04 packs python 2.7.3, the version your script needs.