Python: Get a list of locally installed Python modules

Python Basic - 1: Exercise-9 with Solution

Write a Python program to get a list of locally installed Python modules.

Sample Solution:

Python Code:

# Import the 'pkg_resources' module for working with Python packages.
import pkg_resources

# Get the list of installed packages using 'pkg_resources.working_set'.
installed_packages = pkg_resources.working_set

# Create a sorted list of strings representing installed packages and their versions.
installed_packages_list = sorted(["%s==%s" % (i.key, i.version) for i in installed_packages])

# Print each package and its version in the sorted list.
for m in installed_packages_list:
    print(m)

Sample Output:

asn1crypto==0.24.0
beautifulsoup4==4.5.1
biopython==1.71
bkcharts==0.2
bokeh==0.12.6
cairocffi==0.9.0
cairosvg==2.0.3
certifi==2018.11.29
cffi==1.11.5
chardet==3.0.4
cryptography==2.4.2
cssselect==1.0.1
cvxopt==1.2.2
cycler==0.10.0
decorator==4.3.0
ete3==3.1.1
exifread==2.1.2
genshi==0.7
html5lib==0.999
idna==2.8
jinja2==2.10
jsonschema==2.6.0
kiwisolver==1.0.1
lxml==3.7.0
markupsafe==1.1.0
marshmallow-polyfield==3.2
marshmallow==2.18.0
matplotlib==2.2.3
mpmath==1.1.0
mysql-connector-python==8.0.12
names==0.3.0
networkx==2.2
nose==1.3.7
ntlm-auth==1.2.0
numexpr==2.4.3
numpy==1.15.4
oauthlib==3.0.0
pandas==0.23.4
patsy==0.4.1
pillow==5.4.1
pip==18.0
ply==3.11
pronouncing==0.1.5
protobuf==3.6.1
psutil==5.4.8
pycep-correios==2.3.1
pycolors==0.1.2
pycparser==2.19
pycurl==7.43.0
pygal-maps-ch==1.0.1
pygal-maps-fr==1.1.0
pygal-maps-world==1.0.2
pygal==2.3.1
pygobject==3.20.0
pyparsing==2.3.1
python-apt==1.1.0b1+ubuntu0.16.4.1
python-dateutil==2.7.5
pytz==2018.9
pyyaml==3.13
qiskit-aer==0.1.0
qiskit-aqua==0.4.1
qiskit-terra==0.7.0
qiskit==0.7.0
requests-ntlm==1.1.0
requests-oauthlib==0.8.0
requests==2.21.0
scikit-learn==0.20.0
scipy==1.2.0
seaborn==0.8.1
setuptools==40.6.3
six==1.12.0
statsmodels==0.8.0
sympy==1.3
tables==3.2.2
tinycss==0.4
tornado==5.1.1
urllib3==1.24.1
wheel==0.29.0

Explanation:

The above Python code uses the "pkg_resources" module to retrieve information about installed Python packages. It then creates a sorted list of strings representing each installed package along with its version and prints this information. The result is a list of installed packages and their versions.

Flowchart:

Python Code Editor :

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to get the top stories from Google news.
Next: Write a Python program to display some information about the OS where the script is running.