def find_python3_interpreter(self):
"""
Finds a Python 3 interpreter
:return: The path to the first Python 3 interpreter found, or None
"""
# Try with embedded interpreter first
if self.home is not None:
path = os.path.join(self.home, "bin", "python3")
if os.path.exists(path):
return os.path.abspath(path)
# Try with current interpreter
if sys.version_info[0] == 3 and sys.executable is not None:
return sys.executable
# Try with common names
common_names = ("python3", "python3.3", "python3.4", "python3.5")
for name in common_names:
found = utils.find_in_path(name)
if found is not None:
return found
# Not found
return None
def find_java_interpreter(self, java_home):
"""
Finds the Java interpreter, in the given Java Home if possible
:param java_home: The preferred Java home
"""
# Case 1 : Try "preferred" JVM (embedded one)
java_home = utils.remove_quotes(java_home)
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 2 : Use registry
java_home = get_registry_java_home()
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 3 : Try with JAVA_HOME environment variable
java_home = utils.remove_quotes(os.getenv(cohorte.ENV_JAVA_HOME))
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 4 : Try with all with PATH
return utils.find_in_path("java.exe")
def find_python2_interpreter(self):
"""
Finds a Python 2 interpreter
:return: The path to the first Python 2 interpreter found, or None
"""
# Try with embedded interpreter first
if self.home is not None:
path = os.path.join(self.home, "bin", "python2")
if os.path.exists(path):
return os.path.abspath(path)
# Try with current interpreter
if sys.version_info[0] == 2 and sys.executable is not None:
return sys.executable
# Try with common names
common_names = ("python", "python2", "python2.7")
for name in common_names:
found = utils.find_in_path(name)
if found is not None:
return found
# Not found
return None
def find_java_interpreter(self, java_home):
"""
Finds the Java interpreter, in the given Java Home if possible
:param java_home: The preferred Java home
:return: The path to the first Java interpreter found, or None
"""
# Case 1 : Try "preferred" JVM (embedded one)
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 2 : Try with JAVA_HOME environment variable
java_home = os.getenv(cohorte.ENV_JAVA_HOME)
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 3 : Try with all with PATH
return utils.find_in_path("java")
def find_java_interpreter(self, java_home):
"""
Finds the Java interpreter, in the given Java Home if possible
:param java_home: The preferred Java home
:return: The path to the first Java interpreter found, or None
"""
# Case 1 : Try "preferred" JVM (embedded one)
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 2 : Try with JAVA_HOME environment variable
java_home = os.getenv(cohorte.ENV_JAVA_HOME)
java = self._test_java_path(java_home)
if java is not None:
return java
# Case 3 : Try with all with PATH
return utils.find_in_path("java")
def find_python3_interpreter(self):
"""
Finds a Python 3 interpreter
:return: The path to the first Python 3 interpreter found, or None
"""
# Try with embedded interpreter first
if self.home is not None:
path = os.path.join(self.home, "bin", "python3", "bin",
"python3.exe")
if os.path.exists(path):
return os.path.abspath(path)
# Try with current interpreter
if sys.version_info[0] == 3 and sys.executable is not None:
return sys.executable
# TODO: try with the registry
# Try in the path
return utils.find_in_path("python.exe")
