Merge pull request #1 from RahulVadisetty91/RahulVadisetty91-patch-1

Enhanced Validation, AI-Driven Pipeline Analysis, and Improved Error Handling in Script Refactoring

Validation_AI.py

@@ -0,0 +1,149 @@
+from typing import TYPE_CHECKING, Dict, ItemsView, Iterable, List, Set, Union
+
+from wasabi import msg
+
+from .errors import Errors
+from .tokens import Doc, Span, Token
+from .util import dot_to_dict
+
+if TYPE_CHECKING:
+    # This lets us add type hints for mypy etc. without causing circular imports
+    from .language import Language  # noqa: F401
+
+
+DEFAULT_KEYS = ["requires", "assigns", "scores", "retokenizes"]
+
+def validate_attrs(values: Iterable[str]) -> Iterable[str]:
+    """Validate component attributes provided to 'assigns', 'requires' etc."""
+    data = dot_to_dict({value: True for value in values})
+    objs = {"doc": Doc, "token": Token, "span": Span}
+    _validate_main_attrs(data, objs, values)
+    return values
+
+def _validate_main_attrs(data: Dict[str, Dict], objs: Dict[str, object], values: Iterable[str]) -> None:
+    """Main validation loop for component attributes."""
+    for obj_key, attrs in data.items():
+        if obj_key == "span":
+            _validate_span_attrs(values)
+        _validate_obj_key(obj_key, objs, values)
+        if not isinstance(attrs, dict):  # attr is something like "doc"
+            raise ValueError(Errors.E182.format(attr=obj_key))
+        _validate_sub_attrs(obj_key, attrs, objs)
+
+def _validate_span_attrs(values: Iterable[str]) -> None:
+    """Validate attributes related to spans."""
+    span_attrs = [attr for attr in values if attr.startswith("span.")]
+    span_attrs = [attr for attr in span_attrs if not attr.startswith("span._.")]
+    if span_attrs:
+        raise ValueError(Errors.E180.format(attrs=", ".join(span_attrs)))
+
+def _validate_obj_key(obj_key: str, objs: Dict[str, object], values: Iterable[str]) -> None:
+    """Validate the object key (doc, token, span)."""
+    if obj_key not in objs:  # first element is not doc/token/span
+        invalid_attrs = ", ".join(a for a in values if a.startswith(obj_key))
+        raise ValueError(Errors.E181.format(obj=obj_key, attrs=invalid_attrs))
+
+def _validate_sub_attrs(obj_key: str, attrs: Dict[str, Union[bool, Dict]], objs: Dict[str, object]) -> None:
+    """Validate the sub-attributes within the main object attributes."""
+    for attr, value in attrs.items():
+        if attr == "_":
+            _validate_extension_attrs(obj_key, value)
+            continue  # we can't validate those further
+        if attr.endswith("_"):  # attr is something like "token.pos_"
+            raise ValueError(Errors.E184.format(attr=attr, solution=attr[:-1]))
+        if value is not True:  # attr is something like doc.x.y
+            good = f"{obj_key}.{attr}"
+            bad = f"{good}.{'.'.join(value)}"
+            raise ValueError(Errors.E183.format(attr=bad, solution=good))
+        _check_obj_attr_exists(obj_key, attr, objs)
+
+def _validate_extension_attrs(obj_key: str, value: Dict[str, Union[bool, Dict]]) -> None:
+    """Validate custom extension attributes."""
+    if value is True:  # attr is something like "doc._"
+        raise ValueError(Errors.E182.format(attr=f"{obj_key}._"))
+    for ext_attr, ext_value in value.items():
+        if ext_value is not True:  # attr is something like doc._.x.y
+            good = f"{obj_key}._.{ext_attr}"
+            bad = f"{good}.{'.'.join(ext_value)}"
+            raise ValueError(Errors.E183.format(attr=bad, solution=good))
+
+def _check_obj_attr_exists(obj_key: str, attr: str, objs: Dict[str, object]) -> None:
+    """Check if the object attribute exists within the doc/token/span."""
+    obj = objs[obj_key]
+    if not hasattr(obj, attr):
+        raise ValueError(Errors.E185.format(obj=obj_key, attr=attr))
+
+def get_attr_info(nlp: "Language", attr: str) -> Dict[str, List[str]]:
+    """Check which components in the pipeline assign or require an attribute.
+
+    nlp (Language): The current nlp object.
+    attr (str): The attribute, e.g. "doc.tensor".
+    RETURNS (Dict[str, List[str]]): A dict keyed by "assigns" and "requires",
+        mapped to a list of component names.
+    """
+    result: Dict[str, List[str]] = {"assigns": [], "requires": []}
+    for pipe_name in nlp.pipe_names:
+        meta = nlp.get_pipe_meta(pipe_name)
+        if attr in meta.assigns:
+            result["assigns"].append(pipe_name)
+        if attr in meta.requires:
+            result["requires"].append(pipe_name)
+    return result
+
+def analyze_pipes(
+    nlp: "Language", *, keys: List[str] = DEFAULT_KEYS
+) -> Dict[str, Dict[str, Union[List[str], Dict]]]:
+    """Print a formatted summary for the current nlp object's pipeline. Shows
+    a table with the pipeline components and why they assign and require, as
+    well as any problems if available.
+
+    nlp (Language): The nlp object.
+    keys (List[str]): The meta keys to show in the table.
+    RETURNS (dict): A dict with "summary" and "problems".
+    """
+    result: Dict[str, Dict[str, Union[List[str], Dict]]] = {
+        "summary": {},
+        "problems": {},
+    }
+    all_attrs: Set[str] = set()
+    for i, name in enumerate(nlp.pipe_names):
+        meta = nlp.get_pipe_meta(name)
+        all_attrs.update(meta.assigns)
+        all_attrs.update(meta.requires)
+        result["summary"][name] = {key: getattr(meta, key, None) for key in keys}
+        prev_pipes = nlp.pipeline[:i]
+        requires = {annot: False for annot in meta.requires}
+        if requires:
+            for prev_name, prev_pipe in prev_pipes:
+                prev_meta = nlp.get_pipe_meta(prev_name)
+                for annot in prev_meta.assigns:
+                    requires[annot] = True
+        result["problems"][name] = [
+            annot for annot, fulfilled in requires.items() if not fulfilled
+        ]
+    result["attrs"] = {attr: get_attr_info(nlp, attr) for attr in all_attrs}
+    return result
+
+def print_pipe_analysis(
+    analysis: Dict[str, Dict[str, Union[List[str], Dict]]],
+    *,
+    keys: List[str] = DEFAULT_KEYS,
+) -> None:
+    """Print a formatted version of the pipe analysis produced by analyze_pipes.
+
+    analysis (Dict[str, Union[List[str], Dict[str, List[str]]]]): The analysis.
+    keys (List[str]): The meta keys to show in the table.
+    """
+    msg.divider("Pipeline Overview")
+    header = ["#", "Component", *[key.capitalize() for key in keys]]
+    summary: ItemsView = analysis["summary"].items()
+    body = [[i, n, *[v for v in m.values()]] for i, (n, m) in enumerate(summary)]
+    msg.table(body, header=header, divider=True, multiline=True)
+    n_problems = sum(len(p) for p in analysis["problems"].values())
+    if any(p for p in analysis["problems"].values()):
+        msg.divider(f"Problems ({n_problems})")
+        for name, problem in analysis["problems"].items():
+            if problem:
+                msg.warn(f"'{name}' requirements not met: {', '.join(problem)}")
+    else:
+        msg.good("No problems found.")