get fullpath of given python executable when activating env

src/poetry/utils/env.py

@@ -465,6 +465,21 @@ class EnvManager:
  def __init__(self, poetry: "Poetry") -> None:
  self._poetry = poetry
 
+ def _full_python_path(self, python: str) -> str:
+ try:
+ executable = decode(
+ subprocess.check_output(
+ list_to_shell_command(
+ [python, "-c", '"import sys; print(sys.executable)"']
+ ),
+ shell=True,
+ ).strip()
+ )
+ except CalledProcessError as e:
+ raise EnvCommandError(e)
+
+ return executable
+
  def _detect_active_python(self, io: "IO") -> str:
  executable = None
 
@@ -474,14 +489,7 @@ def _detect_active_python(self, io: "IO") -> str:
  " config.",
  verbosity=Verbosity.VERBOSE,
  )
- executable = decode(
- subprocess.check_output(
- list_to_shell_command(
- ["python", "-c", '"import sys; print(sys.executable)"']
- ),
- shell=True,
- ).strip()
- )
+ executable = self._full_python_path("python")
  io.write_line(f"Found: {executable}", verbosity=Verbosity.VERBOSE)
  except CalledProcessError:
  io.write_line(
@@ -511,6 +519,8 @@ def activate(self, python: str, io: "IO") -> "Env":
  # Executable in PATH or full executable path
  pass
 
+ python = self._full_python_path(python)
+
  try:
  python_version = decode(
  subprocess.check_output(

tests/console/commands/env/helpers.py

@@ -25,6 +25,8 @@ def check_output(cmd: str, *_: Any, **__: Any) -> str:
  return version.text
  elif "sys.version_info[:2]" in cmd:
  return f"{version.major}.{version.minor}"
+ elif '-c "import sys; print(sys.executable)"' in cmd:
+ return f"/usr/bin/{cmd.split()[0]}"
  else:
  return str(Path("/prefix"))
 

tests/console/commands/env/test_use.py

@@ -69,7 +69,7 @@ def test_activate_activates_non_existing_virtualenv_no_envs_file(
  venv_py37 = venv_cache / f"{venv_name}-py3.7"
  mock_build_env.assert_called_with(
  venv_py37,
- executable="python3.7",
+ executable="/usr/bin/python3.7",
  flags={"always-copy": False, "system-site-packages": False},
  with_pip=True,
  with_setuptools=True,

tests/utils/test_env.py

@@ -154,12 +154,14 @@ def build_venv(path: Union[Path, str], **__: Any) -> None:
 
 def check_output_wrapper(
  version: Version = VERSION_3_7_1,
-) -> Callable[[List[str], Any, Any], str]:
- def check_output(cmd: List[str], *args: Any, **kwargs: Any) -> str:
+) -> Callable[[str, Any, Any], str]:
+ def check_output(cmd: str, *args: Any, **kwargs: Any) -> str:
  if "sys.version_info[:3]" in cmd:
  return version.text
  elif "sys.version_info[:2]" in cmd:
  return f"{version.major}.{version.minor}"
+ elif '-c "import sys; print(sys.executable)"' in cmd:
+ return f"/usr/bin/{cmd.split()[0]}"
  else:
  return str(Path("/prefix"))
 
@@ -193,7 +195,7 @@ def test_activate_activates_non_existing_virtualenv_no_envs_file(
 
  m.assert_called_with(
  Path(tmp_dir) / f"{venv_name}-py3.7",
- executable="python3.7",
+ executable="/usr/bin/python3.7",
  flags={"always-copy": False, "system-site-packages": False},
  with_pip=True,
  with_setuptools=True,
@@ -328,7 +330,7 @@ def test_activate_activates_different_virtualenv_with_envs_file(
 
  m.assert_called_with(
  Path(tmp_dir) / f"{venv_name}-py3.6",
- executable="python3.6",
+ executable="/usr/bin/python3.6",
  flags={"always-copy": False, "system-site-packages": False},
  with_pip=True,
  with_setuptools=True,
@@ -389,7 +391,7 @@ def test_activate_activates_recreates_for_different_patch(
 
  build_venv_m.assert_called_with(
  Path(tmp_dir) / f"{venv_name}-py3.7",
- executable="python3.7",
+ executable="/usr/bin/python3.7",
  flags={"always-copy": False, "system-site-packages": False},
  with_pip=True,
  with_setuptools=True,
@@ -1022,7 +1024,7 @@ def test_activate_with_in_project_setting_does_not_fail_if_no_venvs_dir(
 
  m.assert_called_with(
  poetry.file.parent / ".venv",
- executable="python3.7",
+ executable="/usr/bin/python3.7",
  flags={"always-copy": False, "system-site-packages": False},
  with_pip=True,
  with_setuptools=True,