src/main/java/gui_server/server-temp/venv/lib/python3.10/site-packages/pip/_internal/metadata/_json.py

-# Extracted from https://github.com/pfmoore/pkg_metadata
-
-from email.header import Header, decode_header, make_header
-from email.message import Message
-from typing import Any, Dict, List, Union
-
-METADATA_FIELDS = [
-    # Name, Multiple-Use
-    ("Metadata-Version", False),
-    ("Name", False),
-    ("Version", False),
-    ("Dynamic", True),
-    ("Platform", True),
-    ("Supported-Platform", True),
-    ("Summary", False),
-    ("Description", False),
-    ("Description-Content-Type", False),
-    ("Keywords", False),
-    ("Home-page", False),
-    ("Download-URL", False),
-    ("Author", False),
-    ("Author-email", False),
-    ("Maintainer", False),
-    ("Maintainer-email", False),
-    ("License", False),
-    ("Classifier", True),
-    ("Requires-Dist", True),
-    ("Requires-Python", False),
-    ("Requires-External", True),
-    ("Project-URL", True),
-    ("Provides-Extra", True),
-    ("Provides-Dist", True),
-    ("Obsoletes-Dist", True),
-]
-
-
-def json_name(field: str) -> str:
-    return field.lower().replace("-", "_")
-
-
-def msg_to_json(msg: Message) -> Dict[str, Any]:
-    """Convert a Message object into a JSON-compatible dictionary."""
-
-    def sanitise_header(h: Union[Header, str]) -> str:
-        if isinstance(h, Header):
-            chunks = []
-            for bytes, encoding in decode_header(h):
-                if encoding == "unknown-8bit":
-                    try:
-                        # See if UTF-8 works
-                        bytes.decode("utf-8")
-                        encoding = "utf-8"
-                    except UnicodeDecodeError:
-                        # If not, latin1 at least won't fail
-                        encoding = "latin1"
-                chunks.append((bytes, encoding))
-            return str(make_header(chunks))
-        return str(h)
-
-    result = {}
-    for field, multi in METADATA_FIELDS:
-        if field not in msg:
-            continue
-        key = json_name(field)
-        if multi:
-            value: Union[str, List[str]] = [
-                sanitise_header(v) for v in msg.get_all(field)
-            ]
-        else:
-            value = sanitise_header(msg.get(field))
-            if key == "keywords":
-                # Accept both comma-separated and space-separated
-                # forms, for better compatibility with old data.
-                if "," in value:
-                    value = [v.strip() for v in value.split(",")]
-                else:
-                    value = value.split()
-        result[key] = value
-
-    payload = msg.get_payload()
-    if payload:
-        result["description"] = payload
-
-    return result