Top Python Packages on PyPI: Boto3, urllib3, Botocore, aiobotocore, and Requests

Many readers assume that NumPy or Pandas dominate the Python package rankings, but according to the latest PyPI statistics (see https://pypistats.org/top), NumPy is ranked 17th and Pandas does not appear in the top 20.

PyPI, the Python Package Index, hosts over 578,000 packages, more than 6 million versions, and serves millions of users, covering a wide range of domains from machine learning to big data and artificial intelligence.

boto3 is the official AWS SDK for Python, enabling developers to interact with services such as S3 and EC2. Install it with pip install boto3 and configure the required environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY (e.g., in .bash_profile ).

urllib3 is a user‑friendly HTTP client that adds features missing from the standard library, including connection pooling, SSL/TLS verification, and support for various encodings. Install it via python -m pip install urllib3 and import it with import urllib3 .

Botocore provides the low‑level AWS service interfaces that power the AWS CLI and boto3. It can be installed by cloning the repository and running the usual Python setup steps: git clone https://github.com/boto/botocore.git cd botocore virtualenv venv . venv/bin/activate pip install -r requirements.txt pip install -e . pip install botocore

aiobotocore is the asynchronous version of Botocore built on aiohttp, currently supporting services like S3, DynamoDB, SNS, SQS, CloudFormation, and Kinesis. Install it with the following commands: pip install pip-tools pip-compile --all-extras pyproject.toml pip-sync pip install -e "[awscli,boto3]" export AWS_ACCESS_KEY_ID=xxx export AWS_SECRET_ACCESS_KEY=xxx export AWS_DEFAULT_REGION=yyy

Requests is a simple yet powerful HTTP library for Python, offering features such as session handling, SSL verification, authentication, and streaming downloads. Install it with python -m pip install requests .

These five packages currently occupy the top positions on PyPI, though rankings can change over time; readers are encouraged to monitor the PyPI repository for updates.