def comparison(cls, nodelist):
if len(nodelist)>4:
raise SyntaxError("Chained comparison not allowed in environment markers")
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
raise SyntaxError(repr(cop)+" operator not allowed in environment markers")
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
python类comparison()的实例源码
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist)>4:
raise SyntaxError("Chained comparison not allowed in environment markers")
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
raise SyntaxError(repr(cop)+" operator not allowed in environment markers")
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
def get_op(cls, op):
ops = {
symbol.test: cls.test,
symbol.and_test: cls.and_test,
symbol.atom: cls.atom,
symbol.comparison: cls.comparison,
'not in': lambda x, y: x not in y,
'in': lambda x, y: x in y,
'==': operator.eq,
'!=': operator.ne,
'<': operator.lt,
'>': operator.gt,
'<=': operator.le,
'>=': operator.ge,
}
if hasattr(symbol, 'or_test'):
ops[symbol.or_test] = cls.test
return ops[op]
def comparison(cls, nodelist):
if len(nodelist) > 4:
msg = "Chained comparison not allowed in environment markers"
raise SyntaxError(msg)
comp = nodelist[2][1]
cop = comp[1]
if comp[0] == token.NAME:
if len(nodelist[2]) == 3:
if cop == 'not':
cop = 'not in'
else:
cop = 'is not'
try:
cop = cls.get_op(cop)
except KeyError:
msg = repr(cop) + " operator not allowed in environment markers"
raise SyntaxError(msg)
return cop(cls.evaluate(nodelist[1]), cls.evaluate(nodelist[3]))
