 | |
| Developer(s) | John Mair (banisterfiend), Conrad Irwin, …many more |
|---|---|
| Stable release | 0.11.1 / September 26, 2017 (2017-09-26) |
| Repository | |
| Written in | Ruby |
| Operating system | Cross-platform |
| Platform | Ruby interpreter |
| Type | Ruby shell |
| License | MIT License |
| Website | pry |
Pry is an interactive shell for the Ruby programming language. It is notable for its Smalltalk-inspired ability to start a REPL within a running program. This lets programmers debug and modify the current state of a system.
Features
Pry exposes most of its introspective capabilities using a filesystem metaphor. For example, it has a cd command to start interacting with a particular object, and uses ls to list methods and variables.
It is possible to start Pry at any point inside a running program. Due to the reflective nature of Ruby, this lets the programmer inspect the program, change its current state, or correct the source code without restarting the process.
A number of third party plugins are available for Pry, these add tighter integration with other Ruby projects, enhance the abilities of Pry itself, and make Pry available over a remote connection.
See also
- Comparison of computer shells
- IPython — A similar piece of software for the Python programming language
- SLIME — An interactive Lisp shell for Emacs
- Tweak — A Smalltalk programming environment
References
- ^ The Pry Ecosystem — John Mair, 2012 link
- Pry — Reuven M. Lerner, LinuxJournal, July 2012, pp28 link, or
- Interactive Debugging With Pry — Alan MacDougall, 2012 link, or
External links
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