def test_get_custom_python_exe37(self):
exe = pytype_source_utils.get_custom_python_exe((3, 7))
if sys.version_info[:2] == (3, 7):
self.assertIsNone(exe)
elif os.path.exists(pytype_source_utils.CUSTOM_PY37_EXE):
self.assertIn("3.7", exe)
else:
self.assertIsNone(exe)
def get_python_exe(python_version):
"""Automatically infer the --python_exe argument.
Arguments:
python_version: the version tuple (e.g. (2, 7))
Returns:
The inferred python_exe argument
"""
python_exe = "python%d.%d" % python_version
# Use custom interpreters, if provided, in preference to the ones in $PATH
custom_python_exe = pytype_source_utils.get_custom_python_exe(python_exe)
if custom_python_exe:
python_exe = custom_python_exe
if USE_ANNOTATIONS_BACKPORT and python_version == (2, 7):
python_exe += " -T"
return python_exe
def get_python_exe(python_version):
"""Automatically infer the --python_exe argument.
Arguments:
python_version: the version tuple (e.g. (2, 7))
Returns:
A tuple of the inferred python_exe argument and any command-line flags
"""
# Use custom interpreters, if provided, in preference to the ones in $PATH
custom_python_exe = pytype_source_utils.get_custom_python_exe(python_version)
if custom_python_exe:
python_exe = custom_python_exe
else:
python_exe = "python%d.%d" % python_version
if USE_ANNOTATIONS_BACKPORT and python_version == (2, 7):
flags = ["-T"]
else:
flags = []
return python_exe, flags
def get_python_exes(python_version) -> Iterable[List[str]]:
"""Find possible python executables to use.
Arguments:
python_version: the version tuple (e.g. (3, 7))
Yields:
The path to the executable
"""
# Use custom interpreters, if provided, in preference to the ones in $PATH
custom_python_exe = pytype_source_utils.get_custom_python_exe(
python_version)
if custom_python_exe:
yield [custom_python_exe]
return
for version in (format_version(python_version), "3"):
if sys.platform == "win32":
python_exe = ["py", f"-{version}"]
else:
python_exe = [f"python{version}"]
yield python_exe
def get_python_exe(python_version) -> Tuple[List[str], List[str]]:
"""Find a python executable to use.
Arguments:
python_version: the version tuple (e.g. (2, 7))
Returns:
A tuple of the path to the executable and any command-line flags
"""
# Use custom interpreters, if provided, in preference to the ones in $PATH
custom_python_exe = pytype_source_utils.get_custom_python_exe(python_version)
if custom_python_exe:
python_exe = [custom_python_exe]
elif sys.platform == "win32":
python_exe = ["py", "-%d.%d" % python_version]
else:
python_exe = ["python%d.%d" % python_version]
if USE_ANNOTATIONS_BACKPORT and python_version == (2, 7):
flags = ["-T"]
else:
flags = []
return python_exe, flags
def testGetCustomPythonExe3(self):
exe = pytype_source_utils.get_custom_python_exe(sys.version_info[:2])
self.assertIn("python3", exe)
def testGetCustomPythonExe27(self):
exe = pytype_source_utils.get_custom_python_exe((2, 7))
self.assertIn("2.7", exe)
def testGetCustomPythonExe27(self):
exe = pytype_source_utils.get_custom_python_exe((2, 7))
if utils.USE_ANNOTATIONS_BACKPORT:
self.assertIn("2.7", exe)
else:
self.assertIsNone(exe)
def test_get_custom_python_exe3(self): exe = pytype_source_utils.get_custom_python_exe(sys.version_info[:2]) self.assertIsNone(exe)
