I'm trying to get the version number of a specific few modules that I use. Something that I can store in a variable.
-
5Related: Checking Python module version at runtimeire_and_curses– ire_and_curses2010-08-19 17:00:32 +00:00Commented Aug 19, 2010 at 17:00
Add a comment
|
6 Answers
For Python version < 3.8
Use pkg_resources (part of setuptools). Anything installed from PyPI at least has a version number. No extra package/module is needed.
import pkg_resources
pkg_resources.get_distribution("simplegist").version
# '0.3.2'
For Python versions >= 3.8
importlib.metadata can be used as a replacement for pkg_resources. No extra package/module is needed.
from importlib.metadata import version
version('json2html')
# '1.2.3'
1 Comment
rth
pkg_resources import is very slow, the recommended way since Python 3.8 is via
importlib.metadata.version as outlined aboveStarting Python 3.8, importlib.metadata can be used as a replacement for pkg_resources to extract the version of third-party packages installed via tools such as pip:
from importlib.metadata import version
version('wheel')
# '0.33.4'
2 Comments
OnceUponATime
It now is
from importlib_metadata import version for me --- so underscore instead of dot.
Ken Williams
@OnceUponATime I believe that's what you need when running python 3.7 or below, see this answer: stackoverflow.com/a/54869712/169947
Generalized answer from Matt's, do a dir(YOURMODULE) and look for __version__, VERSION, or version. Most modules like __version__ but I think numpy uses version.version
4 Comments
ire_and_curses
Just to note that
__version__ is the preferred standard for new code, as recommended by PEP8. See Standard way to embed version into Python package?
Gabriel Fair
print(YOURMODULE.__version__)
Frak
How do I do this from REPL without actually doing an import?
Dr_Zaszuś
It seems like it only works for packages that define
__version__, no?I think it depends on the module. For example, Django has a VERSION variable that you can get from django.VERSION, sqlalchemy has a __version__ variable that you can get from sqlalchemy.__version__.
answered Aug 19, 2010 at 16:59
Matthew J Morrison
4,4333 gold badges30 silver badges46 bronze badges
3 Comments
Seth
django also has
django.get_version(), which returns a string rather than a tuple. When in doubt, dir(module).ire_and_curses
Or you can use the
getmembers function from the inspect module.
Sian Lerk Lau
The above works for mock too. No luck with .get_distribution("xxx").version()
Some modules (e.g. azure) do not provide a __version__ string.
If the package was installed with pip, the following should work.
# say we want to look for the version of the "azure" module
import pip
for m in pip.get_installed_distributions():
if m.project_name == 'azure':
print(m.version)
2 Comments
Karl Baker
I'm getting
AttributeError: module 'pip' has no attribute 'get_installed_distributions'. Same result in Jupyter 5.0.0 and VS Code 1.30.2 using pip version 18.1. Any suggestions?
phzx_munki
Sorry: looks like they changed the internal APIs of pip. It was not a supported use, anyway. github.com/pypa/pip/issues/5154
import sys
import matplotlib as plt
import pandas as pd
import sklearn as skl
import seaborn as sns
print(sys.version)
print(plt.__version__)
print(pd.__version__)
print(skl.__version__)
print(sns.__version__)
The above code shows versions of respective modules: Sample O/P:
3.7.1rc1 (v3.7.1rc1:2064bcf6ce, Sep 26 2018, 14:21:39) [MSC v.1914 32 bit (Intel)] 3.1.0 0.24.2 0.21.2 0.9.0 (sys shows version of python )
