Packages
CUGA is an enterprise-grade generalist agent framework that orchestrates complex tasks across web interfaces and APIs using configurable reasoning modes, integrated tools (OpenAPI, MCP, LangChain), and policy-driven behavior controls.
Generates fast, sequentially-ordered unique identifiers (CUIDs) designed for horizontal scalability, ported from the JavaScript reference implementation.
Generates collision-resistant, cryptographically secure unique identifiers (CUIDs) optimized for distributed systems and horizontal scaling without coordination.
Provides a dual-interface queue (sync and async) that bridges synchronous threaded code with asynchronous code across multiple async frameworks and sync concurrency models.
GPU-accelerated machine learning algorithms for classification, regression, clustering, and dimensionality reduction, built on CUDA and integrated with scikit-learn-compatible APIs.
CumulusCI automates Salesforce application development workflows—org setup, testing, deployment, and data synthesis—through a command-line tool and portable task/flow framework.
Provides Python bindings to NVIDIA's CUPTI profiling and tracing APIs for instrumenting CUDA applications with activity and callback-based performance monitoring.
CuPy provides a NumPy- and SciPy-compatible array library that runs computations on NVIDIA GPUs using CUDA 12.x, letting you write GPU-accelerated numerical code with a familiar NumPy-like API.
CuPy provides a NumPy and SciPy-compatible array library that runs computations on NVIDIA GPUs via CUDA 13.x, allowing you to accelerate numerical code with minimal API changes.
Provides BPE, Byte BPE, Unigram, and Wordpiece tokenizers for breaking text into subword units, with native implementations and sentencepiece bindings.
However, it is explicitly experimental with a dormant maintenance status (851 days since last release).
Curated Transformers provides PyTorch implementations of state-of-the-art transformer models (BERT, Llama, Falcon, etc.) built from reusable components, with support for loading models from Hugging Face Hub and generation tasks.
Packages the MongoDB Curator tool as a Python library, allowing you to invoke Curator operations directly from Python code or retrieve its binary path.
Converts between URIs and compact URIs (CURIEs) using customizable prefix maps, with both programmatic and CLI interfaces for resolving and mapping identifiers.
Install it if you need reliable CURIE–URI conversion; skip it only if you don't work with prefixed identifiers.
curl_cffi provides Python bindings to libcurl with browser fingerprint impersonation, allowing you to make HTTP requests that mimic specific browser TLS and HTTP/2 signatures to bypass detection-based blocking.
Converts a Python requests request object into an equivalent cURL command string, useful for debugging, documentation, or reproducing HTTP requests outside Python.
Converts Python requests and httpx HTTP request objects into equivalent curl command-line strings for debugging, logging, or manual execution.
However, the last release was 2023-06-09; verify that it handles the request and httpx versions in your environment before relying on it for production logging.
Lints HTML templates in Jinja, Nunjucks, Django, Twig, and Liquid, checking for accessibility and common template issues via command-line tool.
However, dormancy since 2022 means no active maintenance—use it for existing projects but verify compatibility with your template engine versions and be prepared to…
Maps ISO 4217 currency codes to their symbols (USD → $, EUR → €, etc.), with support for active, historical, crypto, and commodity codes.
Converts currency amounts using historical exchange rates from the European Central Bank, with support for 42 currencies against the Euro since 1999.
Cursive validates digital signatures using OpenStack-specific logic, providing cryptographic verification capabilities for OpenStack projects and integrations.
Hides or shows the terminal cursor in Python scripts on Linux and Windows, with support for both Python 2 and Python 3.
Install only if you are maintaining legacy code already using it.
Python SDK for scripting Cursor agents with sync and async clients, enabling programmatic control of the same agent that runs in the Cursor IDE, CLI, and web app.
Curtsies provides a Python library for building interactive terminal applications with colored text, formatted strings, and fullscreen or history-preserving window modes, handling keyboard input and grid-based character rendering.
cuStateVec provides GPU-accelerated state vector operations for building quantum simulators, optimized for NVIDIA CUDA 12 hardware.
cuStateVec provides GPU-accelerated state vector operations for quantum simulators, optimized for NVIDIA CUDA 13 hardware.
However, verify the NVIDIA Proprietary Software license terms for your use case first, and confirm your system has CUDA 13 and a compatible GPU before installing.
Custodian is a just-in-time job management framework that wraps long-running tasks with error checking, recovery logic, and automatic restart capabilities for high-throughput computational workloads.
Python client library for the Customer.io API, enabling you to identify customers, track events, manage customer profiles, and send transactional messages programmatically.
Install it if you need to integrate Customer.io into a Python application for customer tracking, profile management, or transactional messaging.
Sends event and user data to Customer.io's Data Pipelines platform for analytics and customer engagement tracking.
Install it as part of your Customer.io integration; do not install it if you are not using Customer.io's CDP.
CustomTkinter wraps Python's Tkinter to provide modern, customizable graphical user interfaces with contemporary styling and appearance options.
Install it if you're building desktop applications and want contemporary appearance with familiar Tkinter semantics.
Computes cross-entropy loss for large-vocabulary language models with minimal memory footprint by materializing logits selectively rather than globally, using custom kernels and torch.compile fallbacks.
However, verify the license terms before production use (license treatment is unclear), and be aware that maintenance is dormant—no active development is expected.
cuTENSOR is a CUDA library for high-performance tensor operations on NVIDIA GPUs, supporting contractions, reductions, element-wise operations, and mixed-precision compute on tensors up to 64 dimensions.
cuTENSOR is a CUDA library for high-performance tensor operations, including contractions, reductions, and element-wise operations on tensors up to 64 dimensions with mixed-precision support.
However, the proprietary license requires verification of compliance with NVIDIA's terms, and installation friction is moderate due to GPU and CUDA runtime requirements.
cuTensorNet is a GPU-accelerated library for tensor network computations, providing high-performance C and Python APIs for quantum and scientific computing workloads on NVIDIA CUDA hardware.
However, the unclear proprietary license and lack of specified Python version support warrant review before production deployment.
Cutlet converts Japanese text to romaji (Latin characters) using multiple romanization systems including Modified Hepburn, Kunrei-shiki, and Nihon-shiki, with support for proper noun capitalization and URL slug generation.
Provides GPU-accelerated approximate nearest neighbor search and clustering algorithms optimized for NVIDIA GPUs.
Python client library for CVAT (Computer Vision Annotation Tool) server, enabling programmatic access to annotation workflows, data management, and auto-annotation features through a layered API.
Install it if you need programmatic access to a CVAT server; skip it if you only use CVAT's web UI.
cvc5 is a satisfiability modulo theories (SMT) solver that determines whether first-order logic formulas are satisfiable under combinations of theories; it provides Python bindings to use the solver as a library.
Downloads and maintains a local ClamAV antivirus database mirror, including patch files, for hosting your own update server.
A Python client library for the Arista Cloudvision Portal RESTful API, enabling programmatic interaction with CVP for network device management and automation.
Install it if you need to automate or integrate with Arista Cloudvision Portal; skip it if you have no CVP infrastructure.
Parses and scores CVSS v2, v3, and v4 vulnerability severity vectors, returning standardized numeric scores and severity ratings from 0 to 10.