Ivan Vilata i Balaguer wrote:
[SNIP] > > Though I admit it may be strange for this error to be triggered. > > (I had a little mess with using ``expressions.ExpressionNode`` instead > of ``expr.ExpressionNode``... I still don't see why the private copy of > the module is necessary.) > > It's an attempt to make things thread safe. Since we are mucking around with the internals of the expression module, if there were multiple threads one might thread might change get_context out from under the other one. Giving each call to stringToExpression its own copy of the expression module prevents this. It is, admittedly, a kind of stupid way to do this. A more sane thing to do would probably to have some sort of expression object that we instantiate for each call to stringToExpression instead of mucking around with modules, which really aren't meant to be (ab)used this way. However, this would require a major rewrite of the expression module and I was feeling lazy at the time (and still am), so I resorted to questionable hackery. -tim ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Numpy-discussion mailing list Numpy-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/numpy-discussion
