本文整理汇总了Python中_markerlib.default_environment方法的典型用法代码示例。如果您正苦于以下问题：Python _markerlib.default_environment方法的具体用法？Python _markerlib.default_environment怎么用？Python _markerlib.default_environment使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类_markerlib的用法示例。
在下文中一共展示了_markerlib.default_environment方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _markerlib_evaluate
# 需要导入模块: import _markerlib [as 别名]
# 或者: from _markerlib import default_environment [as 别名]
def _markerlib_evaluate(cls, text):
"""
Evaluate a PEP 426 environment marker using markerlib.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
"""
import _markerlib
# markerlib implements Metadata 1.2 (PEP 345) environment markers.
# Translate the variables to Metadata 2.0 (PEP 426).
env = _markerlib.default_environment()
for key in env.keys():
new_key = key.replace('.', '_')
env[new_key] = env.pop(key)
try:
result = _markerlib.interpret(text, env)
except NameError:
e = sys.exc_info()[1]
raise SyntaxError(e.args[0])
return result 示例2: _markerlib_evaluate
# 需要导入模块: import _markerlib [as 别名]
# 或者: from _markerlib import default_environment [as 别名]
def _markerlib_evaluate(cls, text):
"""
Evaluate a PEP 426 environment marker using markerlib.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
"""
import _markerlib
# markerlib implements Metadata 1.2 (PEP 345) environment markers.
# Translate the variables to Metadata 2.0 (PEP 426).
env = _markerlib.default_environment()
for key in env.keys():
new_key = key.replace('.', '_')
env[new_key] = env.pop(key)
try:
result = _markerlib.interpret(text, env)
except NameError as e:
raise SyntaxError(e.args[0])
return result 示例3: _markerlib_evaluate
# 需要导入模块: import _markerlib [as 别名]
# 或者: from _markerlib import default_environment [as 别名]
def _markerlib_evaluate(cls, text):
"""
Evaluate a PEP 426 environment marker using markerlib.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
"""
import _markerlib
env = cls._translate_metadata2(_markerlib.default_environment())
try:
result = _markerlib.interpret(text, env)
except NameError as e:
raise SyntaxError(e.args[0])
return result 示例4: test_markers
# 需要导入模块: import _markerlib [as 别名]
# 或者: from _markerlib import default_environment [as 别名]
def test_markers(self):
from _markerlib import interpret, default_environment, compile
os_name = os.name
self.assertTrue(interpret(""))
self.assertTrue(interpret("os.name != 'buuuu'"))
self.assertTrue(interpret("os_name != 'buuuu'"))
self.assertTrue(interpret("python_version > '1.0'"))
self.assertTrue(interpret("python_version < '5.0'"))
self.assertTrue(interpret("python_version <= '5.0'"))
self.assertTrue(interpret("python_version >= '1.0'"))
self.assertTrue(interpret("'%s' in os.name" % os_name))
self.assertTrue(interpret("'%s' in os_name" % os_name))
self.assertTrue(interpret("'buuuu' not in os.name"))
self.assertFalse(interpret("os.name == 'buuuu'"))
self.assertFalse(interpret("os_name == 'buuuu'"))
self.assertFalse(interpret("python_version < '1.0'"))
self.assertFalse(interpret("python_version > '5.0'"))
self.assertFalse(interpret("python_version >= '5.0'"))
self.assertFalse(interpret("python_version <= '1.0'"))
self.assertFalse(interpret("'%s' not in os.name" % os_name))
self.assertFalse(interpret("'buuuu' in os.name and python_version >= '5.0'"))
self.assertFalse(interpret("'buuuu' in os_name and python_version >= '5.0'"))
environment = default_environment()
environment['extra'] = 'test'
self.assertTrue(interpret("extra == 'test'", environment))
self.assertFalse(interpret("extra == 'doc'", environment))
def raises_nameError():
try:
interpret("python.version == '42'")
except NameError:
pass
else:
raise Exception("Expected NameError")
raises_nameError()
def raises_syntaxError():
try:
interpret("(x for x in (4,))")
except SyntaxError:
pass
else:
raise Exception("Expected SyntaxError")
raises_syntaxError()
statement = "python_version == '5'"
self.assertEqual(compile(statement).__doc__, statement)