[Zope3-checkins] SVN: Zope3/trunk/src/zope/tales/pythonexpr.py separate the compilation step from the rest of the initialization so

[Fred L. Drake, Jr.]

Log message for revision 26679:
  separate the compilation step from the rest of the initialization so
  it can be overridden by a subclass
  


Changed:
  U   Zope3/trunk/src/zope/tales/pythonexpr.py


-=-
Modified: Zope3/trunk/src/zope/tales/pythonexpr.py
===================================================================
--- Zope3/trunk/src/zope/tales/pythonexpr.py	2004-07-22 14:02:17 UTC (rev 26678)
+++ Zope3/trunk/src/zope/tales/pythonexpr.py	2004-07-22 15:21:40 UTC (rev 26679)
@@ -20,13 +20,16 @@
     def __init__(self, name, expr, engine):
         text = ' '.join(expr.splitlines()).strip()
         self.text = text
-        # The next line can legally raise SyntaxError.
         try:
-            self._code = code = compile(text, '<string>', 'eval')
+            code = self._compile(text, '<string>')
         except SyntaxError, e:
             raise engine.getCompilerError()(str(e))
+        self._code = code
         self._varnames = code.co_names
 
+    def _compile(self, text, filename):
+        return compile(text, filename, 'eval')
+
     def _bind_used_names(self, econtext, builtins):
         # Bind template variables
         names = {}