本文整理匯總了Python中_markerlib.interpret方法的典型用法代碼示例。如果您正苦於以下問題：Python _markerlib.interpret方法的具體用法？Python _markerlib.interpret怎麽用？Python _markerlib.interpret使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類_markerlib的用法示例。
在下文中一共展示了_markerlib.interpret方法的8個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: _markerlib_evaluate
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
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2: _markerlib_evaluate
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
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3: and_test
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
def and_test(cls, nodelist):
# MUST NOT short-circuit evaluation, or invalid syntax can be skipped!
items = [
cls.interpret(nodelist[i])
for i in range(1, len(nodelist), 2)
]
return functools.reduce(operator.and_, items) 示例4: test
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
def test(cls, nodelist):
# MUST NOT short-circuit evaluation, or invalid syntax can be skipped!
items = [
cls.interpret(nodelist[i])
for i in range(1, len(nodelist), 2)
]
return functools.reduce(operator.or_, items) 示例5: atom
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
def atom(cls, nodelist):
t = nodelist[1][0]
if t == token.LPAR:
if nodelist[2][0] == token.RPAR:
raise SyntaxError("Empty parentheses")
return cls.interpret(nodelist[2])
msg = "Language feature not supported in environment markers"
raise SyntaxError(msg) 示例6: evaluate_marker
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
def evaluate_marker(cls, text, extra=None):
"""
Evaluate a PEP 426 environment marker on CPython 2.4+.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
This implementation uses the 'parser' module, which is not implemented
on
Jython and has been superseded by the 'ast' module in Python 2.6 and
later.
"""
return cls.interpret(parser.expr(text).totuple(1)[1]) 示例7: interpret
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
def interpret(cls, nodelist):
while len(nodelist)==2: nodelist = nodelist[1]
try:
op = cls.get_op(nodelist[0])
except KeyError:
raise SyntaxError("Comparison or logical expression expected")
return op(nodelist) 示例8: _markerlib_evaluate
# 需要導入模塊: import _markerlib [as 別名]
# 或者: from _markerlib import interpret [as 別名]
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