old_contents: import sys
  
  from setuptools_scm import get_version
  from setuptools_scm.git import parse
  from setuptools_scm.utils import do_ex, do
  
  import pytest
  
  
  def test_pkginfo_noscmroot(tmpdir, monkeypatch):
      """if we are indeed a sdist, the root does not apply"""
      monkeypatch.delenv("SETUPTOOLS_SCM_DEBUG")
  
      # we should get the version from pkg-info if git is broken
      p = tmpdir.ensure('sub/package', dir=1)
      tmpdir.mkdir('.git')
      p.join('setup.py').write(
          'from setuptools import setup;'
          'setup(use_scm_version={"root": ".."})')
  
      _, stderr, ret = do_ex('python setup.py --version', p)
      assert 'setuptools-scm was unable to detect version for' in stderr
      assert ret == 1
  
      p.join("PKG-INFO").write('Version: 1.0')
      res = do('python setup.py --version', p)
      assert res == '1.0'
  
      do('git init', p.dirpath())
      res = do('python setup.py --version', p)
      assert res == '1.0'
  
  
  def test_pip_egg_info(tmpdir, monkeypatch):
      """if we are indeed a sdist, the root does not apply"""
  
      # we should get the version from pkg-info if git is broken
      p = tmpdir.ensure('sub/package', dir=1)
      tmpdir.mkdir('.git')
      p.join('setup.py').write(
          'from setuptools import setup;'
          'setup(use_scm_version={"root": ".."})')
  
      with pytest.raises(LookupError):
          get_version(root=p.strpath)
  
      p.ensure('pip-egg-info/random.egg-info/PKG-INFO').write('Version: 1.0')
      assert get_version(root=p.strpath) == '1.0'
  
  
  def test_use_scm_version_callable(tmpdir, monkeypatch):
      """use of callable as use_scm_version argument"""
      monkeypatch.delenv("SETUPTOOLS_SCM_DEBUG")
  
      p = tmpdir.ensure('sub/package', dir=1)
      p.join('setup.py').write(
          '''from setuptools import setup
  def vcfg():
      from setuptools_scm.version import guess_next_dev_version
      def vs(v):
          return guess_next_dev_version(v)
      return {"version_scheme": vs}
  setup(use_scm_version=vcfg)
  ''')
      p.join("PKG-INFO").write('Version: 1.0')
  
      res = do('python setup.py --version', p)
      assert res == '1.0'
  
  
  @pytest.mark.skipif(sys.platform != 'win32',
                      reason="this bug is only valid on windows")
  def test_case_mismatch_on_windows_git(tmpdir):
      """Case insensitive path checks on Windows"""
      p = tmpdir.ensure("CapitalizedDir", dir=1)
  
      do('git init', p)
      res = parse(str(p).lower())
      assert res is not None
  
new_contents: import sys
  
  from setuptools_scm import get_version
  from setuptools_scm.git import parse
  from setuptools_scm.utils import do_ex, do
  
  import pytest
  
  
  def test_pkginfo_noscmroot(tmpdir, monkeypatch):
      """if we are indeed a sdist, the root does not apply"""
      monkeypatch.delenv("SETUPTOOLS_SCM_DEBUG")
  
      # we should get the version from pkg-info if git is broken
      p = tmpdir.ensure('sub/package', dir=1)
      tmpdir.mkdir('.git')
      p.join('setup.py').write(
          'from setuptools import setup;'
          'setup(use_scm_version={"root": ".."})')
  
      _, stderr, ret = do_ex(sys.executable + ' setup.py --version', p)
      assert 'setuptools-scm was unable to detect version for' in stderr
      assert ret == 1
  
      p.join("PKG-INFO").write('Version: 1.0')
      res = do(sys.executable + ' setup.py --version', p)
      assert res == '1.0'
  
      do('git init', p.dirpath())
      res = do(sys.executable + ' setup.py --version', p)
      assert res == '1.0'
  
  
  def test_pip_egg_info(tmpdir, monkeypatch):
      """if we are indeed a sdist, the root does not apply"""
  
      # we should get the version from pkg-info if git is broken
      p = tmpdir.ensure('sub/package', dir=1)
      tmpdir.mkdir('.git')
      p.join('setup.py').write(
          'from setuptools import setup;'
          'setup(use_scm_version={"root": ".."})')
  
      with pytest.raises(LookupError):
          get_version(root=p.strpath)
  
      p.ensure('pip-egg-info/random.egg-info/PKG-INFO').write('Version: 1.0')
      assert get_version(root=p.strpath) == '1.0'
  
  
  def test_use_scm_version_callable(tmpdir, monkeypatch):
      """use of callable as use_scm_version argument"""
      monkeypatch.delenv("SETUPTOOLS_SCM_DEBUG")
  
      p = tmpdir.ensure('sub/package', dir=1)
      p.join('setup.py').write(
          '''from setuptools import setup
  def vcfg():
      from setuptools_scm.version import guess_next_dev_version
      def vs(v):
          return guess_next_dev_version(v)
      return {"version_scheme": vs}
  setup(use_scm_version=vcfg)
  ''')
      p.join("PKG-INFO").write('Version: 1.0')
  
      res = do(sys.executable + ' setup.py --version', p)
      assert res == '1.0'
  
  
  @pytest.mark.skipif(sys.platform != 'win32',
                      reason="this bug is only valid on windows")
  def test_case_mismatch_on_windows_git(tmpdir):
      """Case insensitive path checks on Windows"""
      p = tmpdir.ensure("CapitalizedDir", dir=1)
  
      do('git init', p)
      res = parse(str(p).lower())
      assert res is not None
  
subject: use sys.executable instead of 'python' for running regression tests