95     def __init__(self, varname, d, val = None):  argument
96         self.varname = varname
106             if self.varname and key:
107                 if self.varname == key:
108                     raise Exception("variable %s references itself!" % self.varname)
122             if self.varname:
123                 varname = 'Var <%s>' % self.varname
125                 varname = '<expansion>'
126             codeobj = compile(code.strip(), varname, "eval")
128             parser = bb.codeparser.PythonParser(self.varname, logger)
130             if self.varname:
131                 vardeps = self.d.getVarFlag(self.varname, "vardeps")
165     def __init__(self, varname, expression, exception):  argument
167         self.variablename = varname
169         self.varlist = [varname or expression or ""]
170         if varname:
172 …ding variable %s, expression was %s which triggered exception %s: %s" % (varname, expression, type…
174 …self.msg = "Failure expanding variable %s: %s: %s" % (varname, type(exception).__name__, exception)
178         self.args = (varname, expression, exception)
180     def addVar(self, varname):  argument
181         if varname:
182             self.varlist.append(varname)
442     def expandWithRefs(self, s, varname):  argument
445             return VariableParse(varname, self, s)
447         varparse = VariableParse(varname, self)
462                 e.addVar(varname)
470                 raise ExpansionError(varname, s, exc).with_traceback(tb) from exc
476     def expand(self, s, varname = None):  argument
477         return self.expandWithRefs(s, varname).value