Support option to not depend on parent package in spacy package

spacy/cli/package.py

@@ -30,6 +30,7 @@ def package_cli(
     version: Optional[str] = Opt(None, "--version", "-v", help="Package version to override meta"),
     build: str = Opt("sdist", "--build", "-b", help="Comma-separated formats to build: sdist and/or wheel, or none."),
     force: bool = Opt(False, "--force", "-f", "-F", help="Force overwriting existing data in output directory"),
+    no_require_parent: bool = Opt(False, "--no-require-parent", "-R", "-R", help="Don't include the parent package (e.g. spacy) in the requirements"),
     # fmt: on
 ):
     """
@@ -60,6 +61,7 @@ def package_cli(
         create_sdist=create_sdist,
         create_wheel=create_wheel,
         force=force,
+        no_require_parent=no_require_parent
         silent=False,
     )
 
@@ -74,6 +76,7 @@ def package(
     create_meta: bool = False,
     create_sdist: bool = True,
     create_wheel: bool = False,
+    no_require_parent: bool = False,
     force: bool = False,
     silent: bool = True,
 ) -> None:
@@ -114,6 +117,8 @@ def package(
         msg.fail("Can't load pipeline meta.json", meta_path, exits=1)
     meta = srsly.read_json(meta_path)
     meta = get_meta(input_dir, meta)
+    if no_require_parent:
+        msg.info("Excluding parent package {about.__title__} from requirements")
     if meta["requirements"]:
         msg.good(
             f"Including {len(meta['requirements'])} package requirement(s) from "
@@ -186,7 +191,8 @@ def package(
         imports.append(code_path.stem)
         shutil.copy(str(code_path), str(package_path))
     create_file(main_path / "meta.json", srsly.json_dumps(meta, indent=2))
-    create_file(main_path / "setup.py", TEMPLATE_SETUP)
+
+    create_file(main_path / "setup.py", TEMPLATE_SETUP.format(require_parent="False" if no_require_parent else "True"))
     create_file(main_path / "MANIFEST.in", TEMPLATE_MANIFEST)
     init_py = TEMPLATE_INIT.format(
         imports="\n".join(f"from . import {m}" for m in imports)
@@ -302,6 +308,8 @@ def get_third_party_dependencies(
                 modules.add(func_info["module"].split(".")[0])  # type: ignore[union-attr]
     dependencies = []
     for module_name in modules:
+        if no_depend_on_spacy and module_name == "spacy":
+            continue
         if module_name in distributions:
             dist = distributions.get(module_name)
             if dist:
@@ -511,6 +519,9 @@ from shutil import copy
 from setuptools import setup
 
 
+REQUIRE_PARENT_PACKAGE = {require_parent}
+
+
 def load_meta(fp):
     with io.open(fp, encoding='utf8') as f:
         return json.load(f)
@@ -536,7 +547,10 @@ def list_files(data_dir):
 
 def list_requirements(meta):
     parent_package = meta.get('parent_package', 'spacy')
-    requirements = [parent_package + meta['spacy_version']]
+    if REQUIRE_PARENT_PACKAGE:
+        requirements = [parent_package]
+    else:
+        requirements = []
     if 'setup_requires' in meta:
         requirements += meta['setup_requires']
     if 'requirements' in meta: