mirror of
https://github.com/hwchase17/langchain.git
synced 2025-11-18 00:20:11 +00:00
a0c2281540
```python
"""python scripts/update_mypy_ruff.py"""
import glob
import tomllib
from pathlib import Path
import toml
import subprocess
import re
ROOT_DIR = Path(__file__).parents[1]
def main():
for path in glob.glob(str(ROOT_DIR / "libs/**/pyproject.toml"), recursive=True):
print(path)
with open(path, "rb") as f:
pyproject = tomllib.load(f)
try:
pyproject["tool"]["poetry"]["group"]["typing"]["dependencies"]["mypy"] = (
"^1.10"
)
pyproject["tool"]["poetry"]["group"]["lint"]["dependencies"]["ruff"] = (
"^0.5"
)
except KeyError:
continue
with open(path, "w") as f:
toml.dump(pyproject, f)
cwd = "/".join(path.split("/")[:-1])
completed = subprocess.run(
"poetry lock --no-update; poetry install --with typing; poetry run mypy . --no-color",
cwd=cwd,
shell=True,
capture_output=True,
text=True,
)
logs = completed.stdout.split("\n")
to_ignore = {}
for l in logs:
if re.match("^(.*)\:(\d+)\: error:.*\[(.*)\]", l):
path, line_no, error_type = re.match(
"^(.*)\:(\d+)\: error:.*\[(.*)\]", l
).groups()
if (path, line_no) in to_ignore:
to_ignore[(path, line_no)].append(error_type)
else:
to_ignore[(path, line_no)] = [error_type]
print(len(to_ignore))
for (error_path, line_no), error_types in to_ignore.items():
all_errors = ", ".join(error_types)
full_path = f"{cwd}/{error_path}"
try:
with open(full_path, "r") as f:
file_lines = f.readlines()
except FileNotFoundError:
continue
file_lines[int(line_no) - 1] = (
file_lines[int(line_no) - 1][:-1] + f" # type: ignore[{all_errors}]\n"
)
with open(full_path, "w") as f:
f.write("".join(file_lines))
subprocess.run(
"poetry run ruff format .; poetry run ruff --select I --fix .",
cwd=cwd,
shell=True,
capture_output=True,
text=True,
)
if __name__ == "__main__":
main()
```
74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
"""Experimental implementation of RELLM wrapped LLM."""
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from __future__ import annotations
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from typing import TYPE_CHECKING, Any, List, Optional, cast
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from langchain_community.llms.huggingface_pipeline import HuggingFacePipeline
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from langchain_community.llms.utils import enforce_stop_tokens
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from langchain_core.callbacks.manager import CallbackManagerForLLMRun
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from langchain_experimental.pydantic_v1 import Field, root_validator
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if TYPE_CHECKING:
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import rellm
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from regex import Pattern as RegexPattern
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else:
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try:
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from regex import Pattern as RegexPattern
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except ImportError:
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pass
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def import_rellm() -> rellm:
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"""Lazily import of the rellm package."""
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try:
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import rellm
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except ImportError:
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raise ImportError(
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"Could not import rellm python package. "
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"Please install it with `pip install rellm`."
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)
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return rellm
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class RELLM(HuggingFacePipeline):
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"""RELLM wrapped LLM using HuggingFace Pipeline API."""
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regex: RegexPattern = Field(..., description="The structured format to complete.")
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max_new_tokens: int = Field(
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default=200, description="Maximum number of new tokens to generate."
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)
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# TODO: move away from `root_validator` since it is deprecated in pydantic v2
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# and causes mypy type-checking failures (hence the `type: ignore`)
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@root_validator # type: ignore[call-overload]
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def check_rellm_installation(cls, values: dict) -> dict:
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import_rellm()
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return values
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def _call(
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self,
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prompt: str,
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stop: Optional[List[str]] = None,
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run_manager: Optional[CallbackManagerForLLMRun] = None,
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**kwargs: Any,
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) -> str:
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rellm = import_rellm()
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from transformers import Text2TextGenerationPipeline
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pipeline = cast(Text2TextGenerationPipeline, self.pipeline)
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text = rellm.complete_re(
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prompt,
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self.regex,
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tokenizer=pipeline.tokenizer,
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model=pipeline.model,
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max_new_tokens=self.max_new_tokens,
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)
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if stop is not None:
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# This is a bit hacky, but I can't figure out a better way to enforce
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# stop tokens when making calls to huggingface_hub.
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text = enforce_stop_tokens(text, stop)
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return text
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