lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser Class Reference

Inheritance diagram for lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser:

Public Member Functions
def	__init__ (self, **kwargs)
def	visit_Name (self, node)
def	visit_Num (self, node)
def	visit_NameConstant (self, node)
def	visit_UnaryOp (self, node)
def	visit_BinOp (self, node)
def	visit_Call (self, node)
def	generic_visit (self, node)

Public Attributes
	variables

Detailed Description

Definition at line 46 of file _evalColumnExpression.py.

Constructor & Destructor Documentation

__init__()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.__init__	(		self,
		**	kwargs
	)

Definition at line 47 of file _evalColumnExpression.py.

    def __init__(self, **kwargs):
        self.variables = kwargs
        self.variables['log'] = log
 

Member Function Documentation

generic_visit()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.generic_visit	(		self,
			node
	)

Definition at line 79 of file _evalColumnExpression.py.

    def generic_visit(self, node):
        raise ValueError("String not recognized")
 
 

visit_BinOp()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_BinOp	(		self,
			node
	)

Definition at line 67 of file _evalColumnExpression.py.

    def visit_BinOp(self, node):
        lhs = self.visit(node.left)
        rhs = self.visit(node.right)
        return OPERATORS[type(node.op)](lhs, rhs)
 

visit_Call()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_Call	(		self,
			node
	)

Definition at line 72 of file _evalColumnExpression.py.

    def visit_Call(self, node):
        if node.func.id in self.variables:
            function = self.visit(node.func)
            return function(self.visit(node.args[0]))
        else:
            raise ValueError("String not recognized")
 

visit_Name()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_Name	(		self,
			node
	)

Definition at line 51 of file _evalColumnExpression.py.

    def visit_Name(self, node):
        if node.id in self.variables:
            return self.variables[node.id]
        else:
            return None
 

visit_NameConstant()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_NameConstant	(		self,
			node
	)

Definition at line 60 of file _evalColumnExpression.py.

    def visit_NameConstant(self, node):
        return node.value
 

visit_Num()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_Num	(		self,
			node
	)

Definition at line 57 of file _evalColumnExpression.py.

    def visit_Num(self, node):
        return node.n
 

visit_UnaryOp()

def lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.visit_UnaryOp	(		self,
			node
	)

Definition at line 63 of file _evalColumnExpression.py.

    def visit_UnaryOp(self, node):
        val = self.visit(node.operand)
        return OPERATORS[type(node.op)](val)
 

Member Data Documentation

variables

lsst.pipe.tasks.dataFrameActions._evalColumnExpression.ExpressionParser.variables

Definition at line 48 of file _evalColumnExpression.py.

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The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-0.7.0/Linux64/pipe_tasks/21.0.0-172-gfb10e10a+18fedfabac/python/lsst/pipe/tasks/dataFrameActions/_evalColumnExpression.py