pycodetool

(formerly PythonCodeTranslators)

Process code using Python. Search and process various languages using context (such as scope, comments, quotes, and escaping).

Features

Python parsing

• Export a list of all global identifiers (after pre-processing on load).
• Convert IronPython to standard Python: Remove the need for framework dependencies, using automatic refactoring and shim functions (see fxshim.py).

Commands

Installing the module provides the following commands:

• changes: Look for repos in the current directory and show what changes are not yet committed (including untracked).
• ggrep: Get a geany command to go to the line in the file from grep (searching within file(s)). Recursively search directories by default.

This package is used by:

• linux-preinstall: Extract linux-preinstall and add linux-preinstall/utilities and linux-preinstall/utilities-developer to your environment's PATH to get the commands above without installing pycodetool. For best results, place the linux-preinstall and pycodetool repos in the same directory.

Python.NET to standard Python

(framework_to_standard_python)

Note that GUI conversion is not tested or supported, but you can try it the manually implement whatever is missing (or use IronPython as necessary and not use pycodetool).

STEP 1

For now, you must use SharpDevelop 4.4.

• Why: The snippet converter isn't online anymore--only a stripped down open source one is there and it only converts between C# and VB.NET. See icsharpcode/CodeConverter#709.

1. Open the project in SharpDevelop (4.4 is tested). If you can't open the project, merely create a new project and add all of the C# files first.
2. Click "Project" (in the Menu bar at the top), "Convert", "From C# to Python"

See also C# to Haxe converters:

• CS2HX
• Phase

(Haxe can now output Python)

See also C# to Python converters:

• https://github.com/isukces/cs2python: Convert C# numpy code to Python numpy code properly.
• https://github.com/poikilos/csharp-to-python: Convert aspx properly (syntax only).
  • Manual changes are necessary afterward. See csharp-to-python.md

Discussions about C# to Python conversion:

• https://www.codeproject.com/Questions/1243096/I-wanted-to-convert-Csharp-code-into-Python-code

Non-working:

• http://www.developerfusion.com/tools/convert/csharp-to-python/

STEP 2

This step (and this project) is only necessary if you have some sort of IronPython code (such as created using SharpDevelop's C# to Python converter).

python_remove_dotnet.py removes non-standard Python as follows:

• Eliminates various issues and .NET calls such as introduced by SharpDevelop's C# to Python translation (formerly available in icsharpcode snippet converter)
• Removes "from System" imports
• Removes "Exception" and uses traceback instead of an exception object
• Changes "Substring" to slice notation (converts count to end)
• Fixes issue with icsharpcode snippet converter using ArrayList and forgetting it renamed it starting with _
• Changes ArrayList iteration to list iteration
• Comments duplicate methods (and shows warning during parsing)
• Changes Console.Error.Write to sys.stdout.write (and ALWAYS prepends 'import sys' if not already present)
• Changes Console.WriteLine to print
• Changes Console.Error.WriteLine to sys.stderr.write, write("\n"), flush()
• Changes something.ToString() to str(something)
• Add 'pass' where icsharpcode converter issue leaves no indented area under 'except' or 'finally'
• Parse StreamReader (local) usage, changing 'while' to 'for', making temp variable for ReadLine and then putting temp.rstrip() into the programmer's variable
• Parse StreamWriter (scope not yet checked) changing WriteLine(something) to write(something+"\n")
• Change '.Trim()' to '.strip()'

Changes

See changelog.md.

Known Issues

• (wontfix) (This is not possible to fix) Correct icsharpcode snippet converter issue where even public member variables have underscore prefix (which denotes private in python)
• See also https://github.com/poikilos/pycodetool/issues

Developer Notes

Documentation

• https://stackoverflow.com/questions/70730966/recognizing-multi-line-sections-with-lark-grammar
• https://stackoverflow.com/questions/14922242/how-to-convert-bnf-to-ebnf
• https://stackoverflow.com/questions/23456868/c-sharp-5-0-ebnf-grammar
• https://lark-parser.readthedocs.io/en/latest/parsers.html
• Add documentation for LALR and EARLY’s differences
• https://github.com/ligurio/lark-grammars
  • Lua

Tools

• https://github.com/lark-parser/ide
  • live instance: https://www.lark-parser.org/ide/

Testing

Use nose such as via python3 -m nose in the repo directory (requires the nose package such as via python3 -m pip install --user nose).