tree-sitter-verilog

1.0.3 verified Sat May 09 auth: no python

Verilog grammar for tree-sitter. Version 1.0.3, updated 2025. Low cadence; provides a parser for Verilog and SystemVerilog files, used with the tree-sitter parsing library.

pip install tree-sitter-verilog

Common errors

error AttributeError: module 'tree_sitter_verilog' has no attribute 'language' ↓

cause Old import pattern using `language` instead of `language_verilog`.

fix

Use from tree_sitter_verilog import language_verilog and call language_verilog().

error TypeError: Language() argument after * must be an iterable, not function ↓

cause Passing the language function directly instead of calling it.

fix

Call the function: Language(tsverilog.language_verilog()).

Warnings

breaking The language function changed from `language` to `language_verilog` in v1.0.0. Old code using `from tree_sitter_verilog import language` will break. ↓

fix Change import to `from tree_sitter_verilog import language_verilog` and call `language_verilog()`.

deprecated tree-sitter versions below 0.20 are no longer supported. This grammar uses the newer API. ↓

fix Upgrade tree-sitter to >=0.20.

gotcha The grammar is for Verilog and SystemVerilog. However, some SystemVerilog constructs may not be fully supported. Check the grammar's issue tracker for known limitations. ↓

fix Test edge cases against the grammar's test suite.

Imports

language_verilog
```
from tree_sitter_verilog import language_verilog
```
The grammar language function for Verilog.
Language
wrong
```
from tree_sitter_verilog import Language
```
correct
```
from tree_sitter import Language
```
Language is from tree_sitter core, not from the grammar package.

Quickstart

Basic usage: import the grammar, build a Language, parse Verilog code.

import tree_sitter_verilog as tsverilog
from tree_sitter import Language, Parser

# Build Language object from grammar
VERILOG_LANGUAGE = Language(tsverilog.language_verilog())

# Initialize parser
parser = Parser(VERILOG_LANGUAGE)

# Parse a snippet
tree = parser.parse(bytes("module test; wire a; endmodule", "utf8"))
root_node = tree.root_node
print(root_node.sexp())