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Packages starting with 'C'

842 packages · page 15 of 22

Packages

confluent_avro Skip
PyPI · Software Development · released May 2020

Serializes and deserializes Avro data according to the Confluent wire format, integrating with Confluent Schema Registry to manage schemas for Kafka applications.

No—not recommended for new projects.

Apache-2.0pure Python · 3.6+abandoned
83.3Kdownloads / mo
confluent-kafka Worth it
PyPI · Python Modules · released Jun 2026

Provides a high-performance Python client for Apache Kafka that wraps librdkafka, offering Producer, Consumer, and AdminClient APIs with support for transactions, schema integration, and asyncio.

Apache-2.0compiled wheel · 3.8+
63.4Mdownloads / mo
confluent-kafka-stubs With conditions
PyPI · Software Development · released Jun 2023

Provides type hints and stubs for the confluent-kafka package to enable static type checking with mypy and IDE autocompletion.

However, the abandoned status and 1159-day gap since the last release mean you should verify that the stubs remain compatible with your confluent-kafka version and…

Apache-2.0pure Pythonabandoned
1.2Mdownloads / mo
conformer With conditions
PyPI · Artificial Intelligence · released May 2023

Provides PyTorch implementations of the Conformer architecture—a convolutional module and full transformer blocks that add local inductive bias to transformer models, commonly used in speech recognition.

However, if you require ongoing maintenance, compatibility updates, or active support, look for an actively maintained alternative or be prepared to maintain a fork…

MITpure Pythonabandoned
508.8Kdownloads / mo
confu With conditions
PyPI · Software Development · released Feb 2024

Confu validates and generates configuration files, providing a framework to define, check, and produce structured configuration data.

However, dormancy since 2024-02-21 means no recent bug fixes or feature updates—suitable for stable, mature use cases but not for projects requiring active upstream…

Apache-2.0pure Pythondormant
93.5Kdownloads / mo
confusable-homoglyphs With conditions
PyPI · Utilities · released Jan 2024

Detects Unicode homoglyphs and mixed-script strings that could be used in spoofing attacks, helping prevent homograph attacks where visually similar characters trick users.

However, be aware the repository is archived and unmaintained—unicode data is current as of 2024-01-30, but you should monitor whether future Unicode standards…

MITpure Pythonabandoned
1.5Mdownloads / mo
confusables With conditions
PyPI · Linguistic · released Mar 2021

Detects and matches words that appear identical but use different Unicode characters, useful for finding homograph attacks, normalizing text, or bypassing character-based filters.

However, maintenance is dormant (last release 2021-03-24), so expect no updates; verify that Unicode version 8.0.0 is current enough for your threat model or data…

MITpure Pythondormant
567.3Kdownloads / mo
confuse Worth it
PyPI · Software Development · released Jul 2026

Confuse is a YAML configuration library that handles defaults, type validation, layering, platform-specific file locations, and command-line/environment variable integration for Python applications.

MITpure Python · 3.10+
1.7Mdownloads / mo
conjur-client Skip
PyPI · Software Development · released Nov 2020

Python SDK and CLI tool for interacting with Conjur OSS secrets management appliance, providing methods to get, set, and manage variables and policies.

MITpure Python · 3.5+abandoned
81.5Kdownloads / mo
conjure-python-client With conditions
PyPI · WWW/HTTP · released Mar 2026

A lightweight HTTP client library built on requests that handles RPC communication for clients generated by conjure-python.

Apache-2.0pure Python · 3.9+
316.0Kdownloads / mo
conllu Worth it
PyPI · Linguistic · released Oct 2024

Parses CoNLL-U formatted text (a standard NLP annotation format) into nested Python dictionaries with full type support, enabling programmatic access to linguistic dependency structures.

Install it if you work with CoNLL-U data from NLP tools or linguistic corpora.

license unclearpure Python · 3.8+
405.9Kdownloads / mo
connect-python Worth it
PyPI · Python Modules · released Mar 2026

Provides Python client and server libraries for Connect RPC, a Protobuf-based RPC framework that works over HTTP/1.1 and HTTP/2, with support for synchronous and asynchronous code, streaming, and compression.

Apache-2.0pure Python · 3.10+
1.4Mdownloads / mo
connected-components-3d With conditions
PyPI · Scientific/Engineering · released Jun 2026

Labels connected components in 2D and 3D images with support for multilabel, continuous-valued, and binary data using 26, 18, or 6-connected neighborhoods in 3D or 4 and 8-connected in 2D.

The copyleft license (LGPL-3.0-or-later) requires careful review if you plan proprietary distribution.

copyleftcompiled wheel
220.0Kdownloads / mo
connection_pool Skip
PyPI · Python Modules · released Sep 2020

Provides a thread-safe connection pool that manages reusable connections to external services, allowing you to configure pool size, connection lifetime, and idle timeouts.

MITbuilds from sourceabandoned
104.6Kdownloads / mo
connector-sdk-types With conditions
PyPI · Software Development · released Aug 2026

Provides auto-generated Pydantic type definitions for the Lumos Connector SDK, including request/response models for accounts, entitlements, authentication, and errors.

Apache-2.0pure Python · 3.10+
181.3Kdownloads / mo
connectorx Worth it
PyPI · Database · released Jan 2026

ConnectorX loads data from databases directly into Python dataframes (Pandas, PyArrow, Polars, Modin, Dask) using a Rust backend optimized for speed and memory efficiency, with optional parallel loading via partitioning.

Install it if you regularly load data from databases; the one-line API and optional parallelism justify the medium wheel size.

permissive licensecompiled wheel · 3.10+
1.8Mdownloads / mo
connectrpc With conditions
PyPI · Python Modules · released Jul 2026

Connect is a runtime library for building and consuming RPC APIs using Protocol Buffers, supporting both server (WSGI/ASGI) and client (sync/async) implementations with interoperability for gRPC and gRPC-Web.

Apache-2.0pure Python · 3.10+
606.1Kdownloads / mo
connexion Worth it
PyPI · Software Development · released Oct 2025

Connexion builds REST APIs from OpenAPI/Swagger specifications, automatically mapping routes, validating requests and responses, and handling parameter injection without decorators.

Apache-2.0pure Python
10.6Mdownloads / mo
cons With conditions
PyPI · Libraries · released Jul 2025

Implements Lisp/Scheme-style cons operations (cons, car, cdr) for Python sequences, enabling functional list manipulation across lists, tuples, iterators, and OrderedDicts.

However, verify the license terms first—the license status is unclear and must be confirmed before use in proprietary or copyleft-sensitive contexts.

license unclearpure Python · 3.9+
1.3Mdownloads / mo
consolekit With conditions
PyPI · Python Modules · released Jul 2026

Consolekit extends click with additional utilities for building command-line interfaces, including enhanced terminal support and helper functions for console applications.

However, verify first that the specific utilities it provides align with your CLI needs, as the fact sheet does not detail which click enhancements are included.

MITpure Python · 3.7+
777.1Kdownloads / mo
constantdict With conditions
PyPI · Libraries · released Jul 2025

Provides an immutable dictionary class that wraps Python's built-in dict, preventing in-place modifications while remaining hashable and comparable to regular dicts.

MITpure Python · 3.7+aging
74.1Kdownloads / mo
constantly With conditions
PyPI · Python Modules · released Oct 2023

Provides symbolic constant support in Python, including collections and constants with text, numeric, and bit flag values.

MITpure Python · 3.8+
14.2Mdownloads / mo
construct Worth it
PyPI · Python Modules · released Nov 2023

Construct is a declarative parser and builder for binary data that lets you define a data structure once and use it symmetrically to both parse binary into Python objects and build objects back into binary.

Install it if you need declarative binary format handling.

MITpure Python · 3.6+aging
7.2Mdownloads / mo
construct-classes With conditions
PyPI · Software Development · released Mar 2026

Parses binary data into Python dataclasses and packs dataclasses back into binary data using construct expressions.

MITpure Python
158.5Kdownloads / mo
construct-typing With conditions
PyPI · Python Modules · released Jul 2026

Adds type hints and static type checking support to the construct binary parser library, enabling type-safe parsing and building of binary data structures.

MITpure Python · 3.10+
1.4Mdownloads / mo
constructs With conditions
PyPI · Application Frameworks · released Aug 2026

Constructs is a programming model for defining composable, reusable pieces of system state—typically used to represent desired cloud infrastructure or application configuration as code.

permissive licensepure Python · 3.10+
9.4Mdownloads / mo
consulate Skip
PyPI · Libraries · released Jul 2015

Consulate is a Python client library for Consul, providing programmatic access to service registration, health checks, key-value storage, and distributed locking operations.

BSD-3-Clausepure Pythonabandoned
123.6Kdownloads / mo
container-inspector With conditions
PyPI · Software Development · released Jan 2026

Analyzes Docker images, containers, and virtual machine images to extract metadata, layers, Dockerfiles, and package inventories from saved image archives.

permissive licensepure Python · 3.10+aging
124.9Kdownloads / mo
contentful Worth it
PyPI · Python Modules · released Aug 2025

A Python client library for querying and retrieving structured content from Contentful's Content Delivery and Preview APIs, with support for synchronization, localization, and link resolution.

MITpure Python · 3.9+
414.6Kdownloads / mo
contentful_management Worth it
PyPI · Dynamic Content · released Apr 2026

Python client for Contentful's Management API, enabling programmatic creation, retrieval, update, and deletion of content, assets, spaces, and memberships in Contentful headless CMS.

permissive licensepure Python · 3.8+
161.8Kdownloads / mo
contentstack-utils With conditions
PyPI · Dynamic Content · released Jul 2026

Renders embedded content and rich-text fields from Contentstack's headless CMS, converting structured JSON data into HTML for front-end display.

MITpure Python · 3.6+
227.0Kdownloads / mo
contextily Worth it
PyPI · Scientific/Engineering · released Jul 2026

Contextily retrieves tile-based map imagery from the internet and overlays it as a basemap on matplotlib figures or exports it to geospatial raster files, supporting both WGS84 and Spheric Mercator coordinate systems.

BSD-3-Clausepure Python · 3.10+
667.8Kdownloads / mo
contextlib2 Skip
PyPI · Software Development · released Jun 2021

contextlib2 backports the Python standard library's contextlib module to earlier Python versions, providing context managers and related utilities for resource management across Python 3.6 and later.

Apache-2.0pure Python · 3.6+abandoned
12.3Mdownloads / mo
contextvars Skip
PyPI · Software Development · released Apr 2019

Provides the PEP 567 contextvars module for Python 3.6, enabling context-local state management in concurrent code.

Apache-2.0builds from sourceabandoned
1.4Mdownloads / mo
contourpy Worth it
PyPI · Information Analysis · released Jul 2025

ContourPy calculates contours of 2D quadrilateral grids using C++11 algorithms wrapped in Python, offering serial and multithreaded implementations without requiring Matplotlib as a dependency.

BSD-3-Clausecompiled wheel · 3.11+
191.2Mdownloads / mo
contractions With conditions
PyPI · Software Development · released Nov 2022

Expands English contractions and slang into their full forms (e.g., "you're" → "you are", "ima" → "I am going to"), with support for custom additions.

However, verify that textsearch remains compatible with your Python version, and consider whether the lack of maintenance poses a risk for your use case—bug fixes or…

permissive licensepure Pythonabandoned
588.2Kdownloads / mo
contree-sdk With conditions
PyPI · Software Development · released Jul 2026

Python SDK for ConTree, a container runtime that provides versioned, reproducible filesystem state for container execution with both async and sync interfaces.

Apache-2.0pure Python
578.2Kdownloads / mo
control Worth it
PyPI · Software Development · released Jul 2025

Implements core operations for analyzing and designing feedback control systems, including state-space and frequency-domain representations, time and frequency response analysis, and control design methods.

Install it if you need to analyze or design linear feedback control systems.

BSD-3-Clausepure Python · 3.10+
282.8Kdownloads / mo
controlnet-aux With conditions
PyPI · Artificial Intelligence · released May 2025

Provides computer vision annotation and detection models (edge detection, pose estimation, depth mapping, segmentation) packaged as PyPI-installable processors for use with ControlNet.

Apache-2.0pure Python · 3.7.0+aging
293.0Kdownloads / mo
conventional-pre-commit Worth it
PyPI · Build Tools · released Feb 2026

A pre-commit hook that validates git commit messages against Conventional Commits formatting rules, rejecting non-compliant messages and optionally enforcing scopes and custom commit types.

Install it if your project needs standardized commit messages for changelog automation or team discipline; skip it if you have no such requirement.

permissive licensepure Python · 3.8+
135.2Kdownloads / mo