Find python lxml version

Question

How can I find the installed python-lxml version in a Linux system?

>>> import lxml
>>> lxml.__version__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute '__version__'

>>> from pprint import pprint
>>> pprint(dir(lxml))
['__builtins__',
 '__doc__',
 '__file__',
 '__name__',
 '__package__',
 '__path__',
 'get_include',
 'os']
>>>

Can't seem to find it

Could you please clarify in your question whether you wanted to get the ``lxml`` version from within Python programtaically? — James Mills, Dec 16 '13 at 13:19
@JamesMills I don't necessarily need to get programatically, just some way — Niklas9, Dec 17 '13 at 14:12

score 50 · Accepted Answer · answered Dec 16 '13 at 13:11

You can get the version by looking at etree:

>>> from lxml import etree
>>> etree.LXML_VERSION
(3, 0, -198, 0)

Other versions of interest can be: etree.LIBXML_VERSION, etree.LIBXML_COMPILED_VERSION, etree.LIBXSLT_VERSION and etree.LIBXSLT_COMPILED_VERSION.

score 12 · Answer 2 · answered Dec 16 '13 at 13:10

I assume you want to determine lxml's version programatically from Python. Since lxml does not provide this information via way of a typilca __version__ attribute on the top-level package you will have to resort to using setuptools' pkg_resources.require() function:

>>> from pkg_resources import require
>>> match = require("lxml")
>>> match
[lxml 3.3.0beta1 (/home/prologic/lib/python2.7/site-packages)]
>>> lxml = match[0]
>>> lxml.version
'3.3.0beta1'

score 10 · Answer 3 · answered Apr 24 '14 at 19:58

Here are two more ways to do it, with minimal typing. You could do it with pip from the command line:

$ pip freeze | grep lxml
lxml==3.2.5

Since you installed from ubuntu repository with apt-get you can also use dpkg:

$ dpkg -l python-lxml
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                     Version                  Description
+++-========================-========================-================================================================
ii  python-lxml              2.2.4-1                  pythonic binding for the libxml2 and libxslt libraries

score 9 · Answer 4 · answered Oct 20 '17 at 23:01

9

I'm surprised that nobody suggested

pip show lxml

answered Oct 20 '17 at 23:01

grigy

6,696
12
49
76

Ha! Beautiful. However, I guess not everyone is using `pip` as a installation method. – Niklas9 Oct 22 '17 at 16:19

score 4 · Answer 5 · answered Dec 16 '13 at 13:19

4

You can use pip as well:

import pip
lxml_package = [pckg for pckg in pip.get_installed_distributions() 
                if pckg.project_name == 'lxml'][0] # assuming lxml is installed
print lxml_package.version

answered Dec 16 '13 at 13:19

Alexander Zhukov

4,357
1
20
31

score 2 · Answer 6 · answered Jul 19 '17 at 04:18

2

from lxml import etree
etree.__version__

answered Jul 19 '17 at 04:18

chroming

358
2
7

Find python lxml version

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