Suggestions for code

The following packages have something in common with the package code. The packages are ordered in decreasing similarity.

Package minted-code: Predefined environments for typesetting LaTeX code with minted
Package tabverb: Verbatim text respecting TAB characters
Package astyped: Verbatim environment, with rather few escapes
Package alltt2: Indented version of alltt
Package verbtext: Verbatim, interpreting non-ascii text
Package verbinp: 8-bit verbatim
Package download: Allow LaTeX to download files using an external process
Package bashful: Invoke bash commands from within LaTeX
Package context-filter: Run external programs on the contents of a start-stop environment
Package samples: A collection of Plain TeX coding examples
Package cprotectinside: Use cprotect arbitrarily nested
Package gmverb: A variant of LaTeX \verb, verbatim and shortvrb
Package phfquotetext: Quote verbatim text without white space formatting
Package saveenv: Save environment content verbatim
Package verbatimcopy: Make copies of text documents from within LaTeX
Package jupynotex: Include whole or partial Jupyter notebooks in LaTeX documents
Package context-vim: Generate ConTeXt syntax highlighting code from vim
Package graphicscache: Cache includegraphics calls
Package hvextern: Write and execute external code, and insert the output
Package pageframe: Page frames, grids, etc., for LaTeX 2.09
Package hexdump: Read and typeset ASCII hexdump files
Package llist: List ASCII text files in landscape
Package nofill: Preserve spaces and line breaks when setting text
Package verbatim-tub: Plain TeX macros for verbatim
Package vrbexin: Verbatim input support
Package verbtim2: Verbatim listings in Plain TeX
Package idverb: Inline verbatim identifiers
Package sverb: A set of verbatim text manipulations
Package terminalcode: Terminal-style code display with ANSI colors, UTF-8 box-drawing, and dark/light themes
Package xurl: Allow URL breaks at any alphanumerical character
Package newvbtm: Define your own verbatim-like environment