Page 6 | Best Application Development Software for Python

behave

Behavior-driven development (or BDD) is an agile software development technique that encourages collaboration between developers, QA and non-technical or business participants in a software project. We have a page further describing this philosophy. Behavior-driven development (or BDD) is an agile software development technique that encourages collaboration between developers, QA and non-technical or business participants in a software project. It was originally named in 2003 by Dan North as a response to test-driven development (TDD), including acceptance test or customer test driven development practices as found in extreme programming. BDD is a second-generation, outside–in, pull-based, multiple-stakeholder, multiple-scale, high-automation, agile methodology. It describes a cycle of interactions with well-defined outputs, resulting in the delivery of working, tested software that matters.

Starting Price: Free

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RapidFort

Automatically eliminate unused software components and deploy smaller, faster, more secure workloads. RapidFort drastically reduces vulnerability and patch management queues so that developers can focus on building. By eliminating unused container components, RapidFort enhances production workload security and saves developers from unnecessarily patching and maintaining unused code. RapidFort profiles containers to understand what components are needed to run. Run your containers as normal in any environment, dev, test, or prod. Use any container deployment, including Kubernetes, Docker Compose, Amazon EKS, and AWS Fargate. RapidFort then identifies which packages you must keep, enabling you to remove unused packages. Typical improvements are in the 60% to 90% range. RapidFort also provides the option to build and customize remediation profiles, allowing you to pick and choose what to retain or remove.

Starting Price: $5,000 per month

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gopaddle

Unleash the power of the no-code platform for modern applications. Build, Provision, Run and Scale Cloud-Native Applications by leveraging your team's current capabilities. Unlock the potential of your applications, capture new revenue opportunities and exceed customer expectations by modernizing your legacy and greenfield applications rapidly. Be the first to market and lead the change. Leverage Out-of-the-box DevOps capabilities in the platform to simplify and automate your software delivery and maintenance. Spice up your 'cloud first' strategy with multi and hybrid cloud enablement. Avoid vendor lock-in and give the flexibility of choice to your teams to bring their own cloud and infrastructure. Eliminate manual errors due to human factors and save time to modernize applications. Debug and resolve issues faster than before using the built-in developer tools.

Starting Price: $45 per month

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Zebedee

From high-stakes esports tournaments to casual mobile games, our world is open to everyone. Bitcoin is programmable money. We make it a seamless part of the game experience. If you can scan a QR code, you can earn with Zebedee. Straightforward, instant, and available now. Play our games or play with our APIs. Either way, you'll soon discover why Bitcoin is transforming the world of gaming. Open a new acquisition channel and revenue stream in the quickly growing world of Bitcoin gaming. Gain an edge over your competition by offering cutting-edge Bitcoin Lightning services and a gateway into the exploding world of Bitcoin gaming. Play a single intense match with live Bitcoin transfers and earn a share of the prize pot based on your percentage of the total score. In survival mode, your sats are your life. When you score, you get an extra life. When you die, you lose some life. If you run out of seats, you get kicked from the match.

Starting Price: Free

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Superblocks

Superblocks is a programmable IDE for developers to build any internal app, workflow, or scheduled job at a fraction of the time and cost. Ship next month's roadmap this week. Quickly build apps, workflows & jobs connected to your data. Secure with granular permissions (RBAC), SSO, audit logs, and secret management in seconds. Deploy with Git and monitor production. Extend anything with code. No need to learn React, HTML, or CSS. Drag and drop components, connect them to data and make your app dynamic by triggering APIs. Build custom KYC, Compliance, AML, and credit approval tools to enable robust support processes to increase the velocity of your support team. Stop wrestling with CLIs. Quickly build admin panels for your datastores to read, write, and update your customer data with tables, forms, and charts. Clark is an AI-powered app builder that helps teams quickly create secure internal enterprise applications using their own design systems, permissions, and integrations.

Starting Price: $0 per month

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MergeBase

With the lowest false positive software composition analysis (SCA) scanner, comprehensive software bill of materials (SBOM) engine, and patented Java Dynamic Application Hardening capability, MergeBase provides the only software supply chain security solution offering real-time DevSecOps visibility of third-party risk from development into operation covering all major languages from C/C++, .NET, JavaScript/NPM to Java.

Starting Price: $380 per month

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Quix

Building real-time apps and services require lots of components running in concert: Kafka, VPC hosting, infrastructure as code, container orchestration, observability, CI/CD, persistent volumes, databases, and much more. The Quix platform takes care of all the moving parts. You just connect your data and start building. That’s it. No provisioning clusters or configuring resources. Use Quix connectors to ingest transaction messages streamed from your financial processing systems in a virtual private cloud or on-premise data center. All data in transit is encrypted end-to-end and compressed with G-Zip and Protobuf for security and efficiency. Detect fraudulent patterns with machine learning models or rule-based algorithms. Create fraud warning messages as troubleshooting tickets or display them in support dashboards.

Starting Price: $50 per month

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Tarpaulin

Tarpaulin is a code coverage reporting tool for the cargo build system, named for a waterproof cloth used to cover cargo on a ship. Currently, tarpaulin provides working line coverage and while fairly reliable may still contain minor inaccuracies in the results. A lot of work has been done to get it working on a wide range of projects, but often unique combinations of packages and build features can cause issues so please report anything you find that's wrong. Also, check out our roadmap for planned features. On Linux Tarpaulin's default tracing backend is still Ptrace and will only work on x86 and x64 processors. This can be changed to the llvm coverage instrumentation with engine llvm, for Mac and Windows this is the default collection method. It can also be run in Docker, which is useful for when you don't use Linux but want to run it locally.

Starting Price: Free

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kcov

Kcov is a FreeBSD/Linux/OSX code coverage tester for compiled languages, Python and Bash. Kcov was originally a fork of Bcov, but has since evolved to support a large feature set in addition to that of Bcov. Kcov, like Bcov, uses DWARF debugging information for compiled programs to make it possible to collect coverage information without special compiler switches.

Starting Price: Free

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pytest-cov

Python

This plugin produces coverage reports. Compared to just using coverage run this plugin does some extras. Subprocess support, so you can fork or run stuff in a subprocess and will get covered without any fuss. Xdist support, so you can use all of pytest-xdist’s features and still get coverage. Consistent pytest behavior. All features offered by the coverage package should work, either through pytest-cov’s command line options or through coverage’s config file. Under certain scenarios, a stray .pth file may be left around in site packages. The data file is erased at the beginning of testing to ensure clean data for each test run. If you need to combine the coverage of several test runs you can use the --cov-append option to append this coverage data to coverage data from previous test runs. The data file is left at the end of testing so that it is possible to use normal coverage tools to examine it.

Starting Price: Free

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Akto

Akto is an open source API security in CI/CD platform. Key features of Akto include: 1. API Discovery 2. API Security Testing 3. Sensitive Data Exposure 4. API Security Posture Management 5. Authentication and Authorization 6. API Security in DevSecOps Akto helps developers and security teams secure APIs in their CI/CD by continuously discovering and testing APIs for vulnerabilities. Akto's pricing is transparent on website. Free tier is available. You can deploy both self-hosted and in cloud. It takes only few mins to deploy and see results. Akto can integrate with multiple traffic sources - Burpsuite, AWS, postman, GCP, gateways, etc.

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GraalVM

Discover libraries and frameworks that work out-of-the-box with Native Image. Apply Graal, an advanced optimizing compiler, that generates faster and leaner code requiring fewer compute resources. Compile Java applications ahead of time to native binaries that start up instantly and deliver peak performance with no warmup time. Leverage the best features and libraries of popular languages in a single app with no overhead. Debug, monitor, profile, and optimize resource consumption in Java and across multiple languages. GraalVM’s high-performance JIT compiler generates optimized native machine code that runs faster, produces less garbage, and uses less CPU thanks to a battery of advanced compiler optimizations and aggressive and sophisticated inlining techniques. The end results are applications that run faster and consume fewer resources, reducing cloud and infrastructure costs.

Starting Price: Free

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$Refraction$

Refraction

Refraction is a code-generation tool for developers. It uses AI to generate code for you. You can use it to generate unit tests, documentation, refactor code, and more. Generate code using AI in 34 languages — Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass / SCSS, Scala, Shell, SQL, Swift, and TypeScript. Join thousands of developers around the world using Refraction to generate documentation, create unit tests, refactor code, and more using AI. Use the power of AI to automate the tedious parts of software development like testing, documentation, and refactoring, so you can focus on what matters. Refactor, optimize, fix and style-check your code. Generate unit tests for your code with various test frameworks. Explain the purpose of your code to make it easier to understand.

Starting Price: $8 per month

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SpellBox

With SpellBox, you can say goodbye to hours of frustrating coding and hello to quick, easy solutions. SpellBox creates the code you need from simple prompts, so you can solve your toughest programming problems in seconds. No more time wasted on syntax errors, debugging, or scouring the internet for answers. With SpellBox, you'll have the code you need right at your fingertips, allowing you to focus on what really matters, delivering top-quality results. With the code explanation feature, you can save time by quickly gaining a deep understanding of the code you are working with, without having to spend hours researching or studying documentation. It's the perfect tool for anyone looking to improve their coding proficiency and maximize their productivity. With code bookmarking, you can save your code snippets, and quickly find what you retrieve them later. This feature is especially useful for developers who work on multiple projects and need to access their code snippets frequently.

Starting Price: $40 per month

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Vega-Altair

The Vega-Altair open-source project is not affiliated with Altair Engineering, Inc. With Vega-Altair, you can spend more time understanding your data and its meaning. Altair’s API is simple, friendly and consistent and built on top of the powerful Vega-Lite visualization grammar. This elegant simplicity produces beautiful and effective visualizations with a minimal amount of code. The key idea is that you are declaring links between data columns and visual encoding channels, such as the x-axis, y-axis, color, etc. The rest of the plot details are handled automatically. Building on this declarative plotting idea, a surprising range of simple to sophisticated plots and visualizations can be created using relatively concise grammar.

Starting Price: Free

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Matplotlib

Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible. A large number of third party packages extend and build on Matplotlib functionality, including several higher-level plotting interfaces (seaborn, HoloViews, ggplot, ...), and a projection and mapping toolkit (Cartopy).

Starting Price: Free

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Cody

Sourcegraph

Cody, Sourcegraph’s AI code assistant goes beyond individual dev productivity, helping enterprises achieve consistency and quality at scale with AI. Unlike traditional coding assistants, Cody understands the entire codebase, enabling deeper contextual awareness for smarter autocompletions, refactoring, and AI-driven code suggestions. It integrates with IDEs like VS Code, Visual Studio, Eclipse, and JetBrains, providing inline editing and chat without disrupting workflows. Cody also connects with tools like Notion, Linear, and Prometheus to enhance development context. Powered by advanced LLMs like Claude Sonnet 4 and GPT-4o, it optimizes speed and performance based on enterprise needs, and is always adding the latest AI models. Developers report significant efficiency gains, with some saving up to six hours per week and doubling their coding speed.

Starting Price: $59

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Lightly

Develop your apps efficiently with Multilingual cloud IDE - Lightly. Create high-quality code in no time with AI-generated code and collaborative development features. Lightly is a powerful cloud IDE that supports multiple programming languages, including Java, Python, C++, HTML, JavaScript. Write, run, and debug code on iPad, anywhere, anytime. The AI-generated code feature helps you quickly generate code. Collaborative development enables easy team collaboration in real-time. Lightly can deploy and host your projects without managing infrastructures. We'll provide project images to efficiently help you deploy on AWS, Azure, GCP, or any other cloud provider. You focus on your creativity and ideas, and let the AI programming assistant do the rest for you!

Starting Price: $9 per month

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Extism

Dylibso

Extism is an open-source, universal plug-in system to make all software programmable, and it's powered by WebAssembly. In-depth documentation, constantly updated as the project grows. 15+ officially supported Host SDKs, making Extism embeddable in the most popular languages. 7+ officially supported PDKs, to write plug-ins in whichever language a developer would like. A growing set of runtime features makes Extism an excellent plug-in system for apps of all types & sizes. Fully-featured canonical reference demo with Elixir host SDK, and plugins in Rust, TypeScript, & Javascript. Implementation of a turn-based multiplayer game platform and games included to play and review. Games are implemented as WebAssembly modules containing a specific set of exports. Check out the source code on GitHub, download the installer, and get started. 100% open-source code. Fork it, experiment, & run your own game server.

Starting Price: Free

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Interval

Interval generates full web apps just from backend Node.js or Python code. If you love writing code but hate building UIs, you'll love building with Interval. Interval introduces a new programming model for building UIs. Simply make Interval SDK calls alongside your business logic, and Interval automatically produces UIs in your browser. Interval's component library compresses the tedious work of building and wiring up UIs for your tools into simple async method calls placed within your business logic. Interval automatically validates input in the UI and on the backend. The method call doesn't resolve until the user enters valid input. Interval renders a responsive, accessible UI in the user's browser. Interval returns the user-submitted value to your backend. All the network communication is handled for you—no need to write APIs for your internal tools.

Starting Price: $10 per user per month

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ToDesktop

We sign your desktop app with EV Microsoft Authenticode and Apple Gatekeeper certificates. Code signing is super-important because your app downloads and installs without warning dialogs. Your app will regularly auto-update to ensure the underlying browser is always up to date. Plus, this is how we deliver performance improvements, security patches, and additional features to your app. You'll get a customized installer for Windows, Mac and Linux. We even provide a magic link you can send your users which will detect their operating system and download the most up-to-date version of your app. ToDesktop will detect your icon and colors when you give it your web app's URL. Don't worry you can edit them if we don't get it right.

Starting Price: $58 per month

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Atri Framework

Atri Labs

Atri framework is a full-stack web development framework to build Progressive Web Apps. Use our visual editor to increase your productivity. You can also add your custom React code. Currently, we support Python for backend development. We are planning to add support for NodeJS soon. Our CLI provides rich support for easy deployment at your platform of choice such as GitHub Pages, AWS, etc. Atri framework comes with a suite of productivity tools such as a visual editor, asset management tools, etc. that significantly reduce development time from months to hours. Atri framework is extending the definition of full-stack to include non-web developers in the development and maintenance of an app.

Starting Price: $100 per user per month

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DevCycle

DevCycle is the leading feature management platform that combines the benefits of OpenFeature and continuous delivery. Open Source Flexibility + SaaS Simplicity: DevCycle is the only platform where OpenFeature is built-in to its SDKs and fully committed to the open standards community with open source SDKs and APIs. This flexibility is combined with DevCycle’s edge architecture and local bucketing to provide teams high scalability and low latency partnered with enterprise-level security and compliance guarantees. Total Observability Into Your Feature Flags: Teams have complete visibility into all their features across their organization. DevCycle observability integrations help track, monitor and diagnose feature flag usage while developer integrations and tooling give full control and visibility into feature flags within code. Customized Release Strategies: Teams can choose their preferred feature release strategies with advanced tools for gradual and percentage based rollout

Starting Price: 0

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Render

Developers have always been forced to pick between two extremes of cloud infrastructure: expensive yet inflexible platforms that fail to scale, or complex large clouds that impose steep learning curves and massive operations teams. ‍ Render offers the best of both worlds — incredible ease of use coupled with immense power and scalability to power everything from a simple HTML page to complex applications with hundreds of microservices.

Starting Price: $19 per user per month

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SuprSend

SuprSend has built-in integration with all channels and major providers. You can start with one channel, and add more channels within minutes. Add or remove providers without any lock-in, and route notifications between them easily. Empower the product team to design and manage templates on all channels at a central place. SuprSend provides powerful visual editors for all channels, decoupling templates from code. Send notifications on all channels with a single trigger. Maximize delivery, reduce latency and make notifications meaningful by configuring intelligent fallbacks, retries, and smart routing between channels. Send instant alerts to a large list of users and keep your users up to speed with key actions. Send OTPs, verification mails and activity updates instantly with high throughput and low latency.

Starting Price: $99 per month

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Cosine Genie

Cosine

Whether it’s high-level or nuanced, Cosine can understand and provide superhuman level answers. We're not just an LLM wrapper – we combine multiple heuristics including static analysis, semantic search and others. Simply ask Cosine how to add a new feature or modify existing code and we’ll generate a step by step guide. Cosine indexes and understands your codebase on multiple levels. From a graph relationship between files and functions to a deep semantic understanding of the code, Cosine can answer any question you have about your codebase. Genie is the best AI software engineer in the world by far - achieving a 30% eval score on the industry standard benchmark SWE-Bench. Genie is able to solve bugs, build features, refactor code, and everything in between either fully autonomously or paired with the user, like working with a colleague, not just a copilot.

Starting Price: $20/month

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Koyeb

Push code to production, everywhere, in minutes with Koyeb. Accelerate backend apps at the edge with high-performance hardware. Connect your GitHub account to Koyeb, choose a repository to deploy, and leave us the infrastructure. We build, deploy, run, and scale your application with zero configuration. Simply git push, and we build and deploy your app with blazing fast built-in continuous deployment. Develop fearlessly with native versioning of all deployments. Build Docker containers, host them on any registry, and atomically deploy your new version worldwide in a single API call. Invite your team to build together and enjoy a live preview after each push with built-in CI/CD. The Koyeb platform lets you combine the languages, frameworks, and technologies you use. Deploy any application without modifications thanks to native support of popular languages and Docker containers. Koyeb detects and builds apps in Node.js, Python, Go, Ruby, Java, PHP, Scala, Clojure, and more.

Starting Price: $2.7 per month

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SigNoz

SigNoz is an open source Datadog or New Relic alternative. A single tool for all your observability needs, APM, logs, metrics, exceptions, alerts, and dashboards powered by a powerful query builder. You don’t need to manage multiple tools for traces, metrics, and logs. Get great out-of-the-box charts and a powerful query builder to dig deeper into your data. Using an open source standard frees you from vendor lock-in. Use auto-instrumentation libraries of OpenTelemetry to get started with little to no code change. OpenTelemetry is a one-stop solution for all your telemetry needs. A single standard for all telemetry signals means increased developer productivity and consistency across teams. Write queries on all telemetry signals. Run aggregates, and apply filters and formulas to get deeper insights from your data. SigNoz uses ClickHouse, a fast open source distributed columnar database. Ingestion and aggregations are lightning-fast.

Starting Price: $199 per month

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Athina AI

Athina is a collaborative AI development platform that enables teams to build, test, and monitor AI applications efficiently. It offers features such as prompt management, evaluation tools, dataset handling, and observability, all designed to streamline the development of reliable AI systems. Athina supports integration with various models and services, including custom models, and ensures data privacy through fine-grained access controls and self-hosted deployment options. The platform is SOC-2 Type 2 compliant, providing a secure environment for AI development. Athina's user-friendly interface allows both technical and non-technical team members to collaborate effectively, accelerating the deployment of AI features.

Starting Price: Free

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Svix

Webhooks require a lot more engineering time, resources and ongoing maintenance than you would first expect. Building a secure, reliable, and scalable webhook service is hard and time consuming. We built it so you can focus on what matters most, your business. Customer endpoints fail or hang more often than you think. You need automatic retries to ensure deliverability. You need to monitor the deliverability of your webhooks to different endpoints, disable failing ones and notify your customers. Webhooks come with a myriad of security implications, such as SSRF, replay attacks and unauthenticated webhook events. You would need to build a UI for your users to add and remove endpoints, inspect logs and get ongoing reports. Offer your users a great developer experience, including the ability to test, inspect and replay their webhooks.

Starting Price: $490 per month

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Best Application Development Software for Python - Page 6

Compare the Top Application Development Software that integrates with Python as of November 2025 - Page 6

behave

RapidFort

gopaddle

Zebedee

Superblocks

MergeBase

Quix

Tarpaulin

kcov

pytest-cov

Akto

GraalVM

Refraction

SpellBox

Vega-Altair

Matplotlib

Cody

Lightly

Extism

Interval

ToDesktop

Atri Framework

DevCycle

Render

SuprSend

Cosine Genie

Koyeb

SigNoz

Athina AI

Svix

Best Application Development Software for Python - Page 6

Compare the Top Application Development Software that integrates with Python as of November 2025 - Page 6

behave

RapidFort

gopaddle

Zebedee

Superblocks

MergeBase

Quix

Tarpaulin

kcov

pytest-cov

Akto

GraalVM

Refraction

SpellBox

Vega-Altair

Matplotlib

Cody

Lightly

Extism

Interval

ToDesktop

Atri Framework

DevCycle

Render

SuprSend

Cosine Genie

Koyeb

SigNoz

Athina AI

Svix

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