File poetry-4749-1.1.patch of Package python-poetry

Index poetry-1.1.10
Index: poetry-1.1.12/pyproject.toml
===================================================================
--- poetry-1.1.12.orig/pyproject.toml
+++ poetry-1.1.12/pyproject.toml
@@ -40,7 +40,8 @@ html5lib = "^1.0"
 shellingham = "^1.1"
 tomlkit = ">=0.7.0,<1.0.0"
 pexpect = "^4.7.0"
-packaging = "^20.4"
+# packaging uses calver, so version is unclamped
+packaging = ">=20.4"
 virtualenv = { version = "^20.0.26" }
 
 # The typing module is not in the stdlib in Python 2.7
Index: poetry-1.1.12/poetry/utils/env.py
===================================================================
--- poetry-1.1.12.orig/poetry/utils/env.py
+++ poetry-1.1.12/poetry/utils/env.py
@@ -7,7 +7,6 @@ import re
 import shutil
 import sys
 import sysconfig
-import textwrap
 
 from contextlib import contextmanager
 from copy import deepcopy
@@ -44,6 +43,25 @@ from poetry.utils.helpers import is_dir_
 from poetry.utils.helpers import paths_csv
 
 
+GET_SYS_TAGS = f"""
+import importlib.util
+import json
+import sys
+
+from pathlib import Path
+
+spec = importlib.util.spec_from_file_location("packaging", Path(r"{packaging.__file__}"))
+packaging = importlib.util.module_from_spec(spec)
+sys.modules[spec.name] = packaging
+
+spec = importlib.util.spec_from_file_location("packaging.tags", Path(r"{packaging.tags.__file__}"))
+packaging_tags = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(packaging_tags)
+
+print(json.dumps([(t.interpreter, t.abi, t.platform) for t in packaging_tags.sys_tags()]))
+"""
+
+
 GET_ENVIRONMENT_INFO = """\
 import json
 import os
@@ -1382,32 +1400,7 @@ class VirtualEnv(Env):
         return [self._bin(self._pip_executable)]
 
     def get_supported_tags(self):  # type: () -> List[Tag]
-        file_path = Path(packaging.tags.__file__)
-        if file_path.suffix == ".pyc":
-            # Python 2
-            file_path = file_path.with_suffix(".py")
-
-        with file_path.open(encoding="utf-8") as f:
-            script = decode(f.read())
-
-        script = script.replace(
-            "from ._typing import TYPE_CHECKING, cast",
-            "TYPE_CHECKING = False\ncast = lambda type_, value: value",
-        )
-        script = script.replace(
-            "from ._typing import MYPY_CHECK_RUNNING, cast",
-            "MYPY_CHECK_RUNNING = False\ncast = lambda type_, value: value",
-        )
-
-        script += textwrap.dedent(
-            """
-            import json
-
-            print(json.dumps([(t.interpreter, t.abi, t.platform) for t in sys_tags()]))
-            """
-        )
-
-        output = self.run_python_script(script)
+        output = self.run(self._executable, "-", input_=GET_SYS_TAGS)
 
         return [Tag(*t) for t in json.loads(output)]
 
Index: poetry-1.1.12/tests/utils/test_env.py
===================================================================
--- poetry-1.1.12.orig/tests/utils/test_env.py
+++ poetry-1.1.12/tests/utils/test_env.py
@@ -97,6 +97,16 @@ def test_env_shell_commands_with_stdinpu
     )
 
 
+def test_env_get_supported_tags_matches_inside_virtualenv(tmp_dir, manager):
+    venv_path = Path(tmp_dir) / "Virtual Env"
+    manager.build_venv(str(venv_path))
+    venv = VirtualEnv(venv_path)
+
+    import packaging.tags
+
+    assert venv.get_supported_tags() == list(packaging.tags.sys_tags())
+
+
 @pytest.fixture
 def in_project_venv_dir(poetry):
     os.environ.pop("VIRTUAL_ENV", None)