本文整理汇总了Python中pip._vendor._markerlib.interpret方法的典型用法代码示例。如果您正苦于以下问题：Python _markerlib.interpret方法的具体用法？Python _markerlib.interpret怎么用？Python _markerlib.interpret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pip._vendor._markerlib的用法示例。
在下文中一共展示了_markerlib.interpret方法的11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: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [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.
"""
from pip._vendor 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: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [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.
"""
from pip._vendor 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: and_test
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
def and_test(cls, nodelist):
# MUST NOT short-circuit evaluation, or invalid syntax can be skipped!
return functools.reduce(operator.and_, [cls.interpret(nodelist[i]) for i in range(1,len(nodelist),2)]) 示例4: test
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
def test(cls, nodelist):
# MUST NOT short-circuit evaluation, or invalid syntax can be skipped!
return functools.reduce(operator.or_, [cls.interpret(nodelist[i]) for i in range(1,len(nodelist),2)]) 示例5: atom
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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])
raise SyntaxError("Language feature not supported in environment markers") 示例6: evaluate_marker
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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: and_test
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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8: test
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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9: atom
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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10: evaluate_marker
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [as 别名]
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11: _markerlib_evaluate
# 需要导入模块: from pip._vendor import _markerlib [as 别名]
# 或者: from pip._vendor._markerlib import interpret [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.
"""
from pip._vendor 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