Find which version of package is installed with pip

Question

Using pip, is it possible to figure out which version of a package is currently installed?

I know about pip install XYZ --upgrade but I am wondering if

Answer 1

Pip 1.3 now also has a list command:

$ pip list
argparse (1.2.1)
pip (1.5.1)
setuptools (2.1)
wsgiref (0.1.2)

Answer 2

import pkg_resources
packages = [dist.project_name for dist in pkg_resources.working_set]
try:
   for count, item in enumerate(packages):
      print(item, pkg_resources.get_distribution(item).version)
except:
    pass here

The indentations might not be perfect. The reason I am using a Try- Except block is that few library names will throw errors because of parsing the library names to process the versions. even though packages variable will contain all the libraries install in your environment.

Answer 3

You can also install yolk and then run yolk -l which also gives some nice output. Here is what I get for my little virtualenv:

(venv)CWD> /space/vhosts/pyramid.xcode.com/venv/build/unittest 
project@pyramid 43> yolk -l
Chameleon       - 2.8.2        - active 
Jinja2          - 2.6          - active 
Mako            - 0.7.0        - active 
MarkupSafe      - 0.15         - active 
PasteDeploy     - 1.5.0        - active 
Pygments        - 1.5          - active 
Python          - 2.7.3        - active development (/usr/lib/python2.7/lib-dynload)
SQLAlchemy      - 0.7.6        - active 
WebOb           - 1.2b3        - active 
account         - 0.0          - active development (/space/vhosts/pyramid.xcode.com/project/account)
distribute      - 0.6.19       - active 
egenix-mx-base  - 3.2.3        - active 
ipython         - 0.12         - active 
logilab-astng   - 0.23.1       - active 
logilab-common  - 0.57.1       - active 
nose            - 1.1.2        - active 
pbkdf2          - 1.3          - active 
pip             - 1.0.2        - active 
pyScss          - 1.1.3        - active 
pycrypto        - 2.5          - active 
pylint          - 0.25.1       - active 
pyramid-debugtoolbar - 1.0.1        - active 
pyramid-tm      - 0.4          - active 
pyramid         - 1.3          - active 
repoze.lru      - 0.5          - active 
simplejson      - 2.5.0        - active 
transaction     - 1.2.0        - active 
translationstring - 1.1          - active 
venusian        - 1.0a3        - active 
waitress        - 0.8.1        - active 
wsgiref         - 0.1.2        - active development (/usr/lib/python2.7)
yolk            - 0.4.3        - active 
zope.deprecation - 3.5.1        - active 
zope.interface  - 3.8.0        - active 
zope.sqlalchemy - 0.7          - active 

Answer 4

You can use the grep command to find out.

pip show <package_name>|grep Version

Example:

pip show urllib3|grep Version

will show only the versions.

Metadata-Version: 2.0
Version: 1.12

Answer 5

As of pip 1.3, there is a pip show command.

$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe

In older versions, pip freeze and grep should do the job nicely.

$ pip freeze | grep Jinja2
Jinja2==2.7.3

Answer 6

and with --outdated as an extra argument, you will get the Current and Latest versions of the packages you are using :

$ pip list --outdated
distribute (Current: 0.6.34 Latest: 0.7.3)
django-bootstrap3 (Current: 1.1.0 Latest: 4.3.0)
Django (Current: 1.5.4 Latest: 1.6.4)
Jinja2 (Current: 2.6 Latest: 2.8)

So combining with AdamKG 's answer :

$ pip list --outdated | grep Jinja2
Jinja2 (Current: 2.6 Latest: 2.8)

Check pip-tools too : https://github.com/nvie/pip-tools