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    <p>First, I am not aware of any tool or libraries implemented in Python that specifically designed for refactoring Java code, and a Google search did not give me any leads.</p> <p>Second, I would posit that writing such a decent tool or library for refactoring Java in Python would be a large task. You would have to implement a Java compiler front-end (lexer/parser, AST builder and type analyser) in Python, then figure out how to integrate this with a program editor. I'm not surprised that nobody has done this ... given that mature alternatives already exist.</p> <p>Thirdly, doing refactoring without a full analysis of the source code (but uses pattern matching for example) will be incapable of doing complex refactoring, and will is likely to make mistakes in edge cases that the implementor did not think of. I expect that is the level at which the OP is currently operating ...</p> <p>Given that bleak outlook, what are the alternatives:</p> <p>One alternative is to use one of the existing Java IDEs (e.g. NetBeans, Eclipse, IDEA. etc) as a refactoring tool. The OP won't be able to extend the capabilities of such a tool in Python code, but the chances are that he won't really need to. I expect that at least one of these IDEs does 95% of what he needs, and (if he is realistic) that should be good enough. Especially when you consider that IDEs have lots of incidental features that help make refactoring easier; e.g. structured editing, undo/redo, incremental compilation, intelligent code completion, intelligent searching, type and call hierarchy views, and so on.</p> <p>(Aside ... if existing IDEs are not good enough (@WizardOfOdds - only the OP can make that call!!), it would make more sense to try to extend the refactoring capability of an existing IDE than start again in a different implementation language.)</p> <p>Depending on what he is actually doing, model-driven code generation may be another alternative. For instance, if the refactoring is happening because he is frequently creating and recreating his object model(s), then an alternative is to code the models in some modeling language and generate his code from those models. My tool of choice when doing this kind of thing is Eclipse EMF and related technologies. The EMF technologies include generation of editors, XML serialization, persistence, queries, model to model transformation and so on. I have used EMF to implement and roll out projects with object models consisting of 50 to 100 distinct classes with complex relationships and validation requirements. EMF's support for merging source code edits when you regenerate from an updated model is a key feature.</p>
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    1. POIntelligent search and generation of Java code, preferrably using Python?
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    1. POIntelligent search and generation of Java code, preferrably using Python?
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    1. COConsider the python thing a very soft constraint: if it can't, it can't. As some of the other answers suggest, the refactoring tools in my IDE (Eclipse) don't seem to be quite what I'm looking for. (In fact, my most recent want of this tool was to repair a refactoring that went badly.) Also, I think model-driven generation is overkill for my needs; many of the scenarios I want this for are specifically one-offs.
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    2. CO@Ipsquiggle - It appears that no tool currently exists that directly addresses your needs. If you want to do something about it, consider fixing / enhancing the refactoring component of one of the IDEs.
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    3. COThat does seem to be the case. It appears as if Eclipse actually will perform contextual *searches*, but gives no tools for manipulation after the fact. That, at least, is promising.
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