| About
            The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists. Whether you're new to programming or an experienced developer, it's easy to learn and use Python. Python can be easy to pick up whether you're a first-time programmer or you're experienced with other languages. The following pages are a useful first step to get on your way to writing programs with Python! The community hosts conferences and meetups to collaborate on code, and much more. Python's documentation will help you along the way, and the mailing lists will keep you in touch. The Python Package Index (PyPI) hosts thousands of third-party modules for Python. Both Python's standard library and the community-contributed modules allow for endless possibilities.
             | About
            Writing Swift code is interactive and fun, the syntax is concise yet expressive, and Swift includes modern features developers love. Swift code is safe by design and produces software that runs lightning-fast. Swift is the result of the latest research on programming languages, combined with decades of experience building Apple platforms. Named parameters are expressed in a clean syntax that makes APIs in Swift even easier to read and maintain. Even better, you don’t even need to type semi-colons. Inferred types make code cleaner and less prone to mistakes, while modules eliminate headers and provide namespaces. To best support international languages and emoji, Strings are Unicode-correct and use a UTF-8 based encoding to optimize performance for a wide-variety of use cases. You can even write concurrent code with simple, built-in keywords that define asynchronous behavior, making your code more readable and less error-prone.
             | About
            Tcl is a very simple programming language. If you have programmed before, you can learn enough to write interesting Tcl programs within a few hours. This page provides a quick overview of the main features of Tcl. After reading this you'll probably be able to start writing simple Tcl scripts on your own; however, we recommend that you consult one of the many available Tcl books for more complete information. Each Tcl command consists of one or more words separated by spaces. In this example there are four words: expr, 20, +, and 10. The first word is the name of a command and the other words are arguments to that command. All Tcl commands consist of words, but different commands treat their arguments differently. The expr command treats all of its arguments together as an arithmetic expression, computes the result of that expression, and returns the result as a string. In the expr command the division into words isn't significant. 
             | About
            Bug Tracking, Test Case Management and Version Control
devZing provides a hosted, managed environment with the tools you need for your project team to get things done. We make sure the servers are running fast, are backed up and have the most current versions. You create great software.
Bugzilla Hosting
Bugzilla is the classic bug tracker. Have an existing Bugzilla installation? We'll import it. 
Subversion Hosting
Do you have multiple developers writing code? Then you need Subversion.  Create as many repositories as you need and access them via Subversion clients such as TortoiseSVN.
MantisBT Hosting
A great alternative bug tracker. Can even be used as a ticketing system. 
Testopia Hosting
Testopia is a sophisticated addition to Bugzilla so you get integrated test case management and defect tracking in one package.
Trac Hosting
Trac is a fantastic combination of defect tracker, Subversion browser, Wiki and project management webapp.
             | |||
| Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
                On-Premises
            
            
         
            
                iPhone
            
            
         
            
                iPad
            
            
         
            
                Android
            
            
         
            
                Chromebook
            
            
         | Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
                On-Premises
            
            
         
            
                iPhone
            
            
         
            
                iPad
            
            
         
            
                Android
            
            
         
            
                Chromebook
            
            
         | Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
                On-Premises
            
            
         
            
                iPhone
            
            
         
            
                iPad
            
            
         
            
                Android
            
            
         
            
                Chromebook
            
            
         | Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
                On-Premises
            
            
         
            
                iPhone
            
            
         
            
                iPad
            
            
         
            
                Android
            
            
         
            
                Chromebook
            
            
         | |||
| Audience
        Developers interested in a beautiful but advanced programming language
         | Audience
        Developers looking for a programming language for iOS, iPadOS, macOS, tvOS, and watchOS
         | Audience
        Developers in need of a Programming Language solution
         | Audience
        Software Teams
         | |||
| Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | |||
| API
            
                Offers API
            
            
         | API
            
                Offers API
            
            
         | API
            
                Offers API
            
            
         | API
            
                Offers API
            
            
         | |||
| Screenshots and Videos | Screenshots and Videos | Screenshots and Videos | Screenshots and Videos | |||
| Pricing
        Free
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        Free
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        Free
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        $15.00/month
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | |||
| 
Reviews/ | 
Reviews/ | 
Reviews/ | 
Reviews/ | |||
| Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | |||
| Company InformationPython Founded: 1991 www.python.org | Company InformationApple developer.apple.com/swift/ | Company InformationTcl www.tcl.tk/about/language.html | Company InformationdevZing Founded: 2009 United States devzing.com | |||
| Alternatives | Alternatives | Alternatives | Alternatives | |||
|  | ||||||
|  |  |  | ||||
|  |  | |||||
|  | ||||||
| Categories | Categories | Categories | Categories | |||
| Bug Tracking Features
            
                Backlog Management
            
            
         
            
                Filtering
            
            
         
            
                Issue Tracking
            
            
         
            
                Release Management
            
            
         
            
                Task Management
            
            
         
            
                Ticket Management
            
            
         
            
                Workflow Management
            
            
         Software Testing Features
            
                Automated Testing
            
            
         
            
                Black-Box Testing
            
            
         
            
                Dynamic Testing
            
            
         
            
                Issue Tracking
            
            
         
            
                Manual Testing
            
            
         
            
                Quality Assurance Planning
            
            
         
            
                Reporting / Analytics
            
            
         
            
                Static Testing
            
            
         
            
                Test Case Management
            
            
         
            
                Variable Testing Methods
            
            
         
            
                White-Box Testing
            
            
         Source Code Management Features
            
                Access Controls/Permissions
            
            
         
            
                Bug Tracking
            
            
         
            
                Build Automation
            
            
         
            
                Change Management
            
            
         
            
                Code Review
            
            
         
            
                Collaboration
            
            
         
            
                Continuous Integration
            
            
         
            
                Repository Management
            
            
         
            
                Version Control
            
            
         | ||||||
| Integrations
            
                
    AI Dev Codes
            
            
         
            
                
    LETSCMS MLM
            
            
         
            
                
    LLM Gateway
            
            
         
            
                
    McAnswers AI
            
            
         
            
                
    Metabob
            
            
         
            
                
    Mozilla Firefox
            
            
         
            
                
    Polars
            
            
         
            
                
    Prompt flow
            
            
         
            
                
    Prophesee Metavision
            
            
         
            
                
    Sumocode
            
            
         | Integrations
            
                
    AI Dev Codes
            
            
         
            
                
    LETSCMS MLM
            
            
         
            
                
    LLM Gateway
            
            
         
            
                
    McAnswers AI
            
            
         
            
                
    Metabob
            
            
         
            
                
    Mozilla Firefox
            
            
         
            
                
    Polars
            
            
         
            
                
    Prompt flow
            
            
         
            
                
    Prophesee Metavision
            
            
         
            
                
    Sumocode
            
            
         | Integrations
            
                
    AI Dev Codes
            
            
         
            
                
    LETSCMS MLM
            
            
         
            
                
    LLM Gateway
            
            
         
            
                
    McAnswers AI
            
            
         
            
                
    Metabob
            
            
         
            
                
    Mozilla Firefox
            
            
         
            
                
    Polars
            
            
         
            
                
    Prompt flow
            
            
         
            
                
    Prophesee Metavision
            
            
         
            
                
    Sumocode
            
            
         | Integrations
            
                
    AI Dev Codes
            
            
         
            
                
    LETSCMS MLM
            
            
         
            
                
    LLM Gateway
            
            
         
            
                
    McAnswers AI
            
            
         
            
                
    Metabob
            
            
         
            
                
    Mozilla Firefox
            
            
         
            
                
    Polars
            
            
         
            
                
    Prompt flow
            
            
         
            
                
    Prophesee Metavision
            
            
         
            
                
    Sumocode
            
            
         | |||
|  |  |  |  | 
 
         
         
         
         
         
        