[Zope] lambda's in external methods

In the zope 2.7 book it mentions that an optimization technique for external methods is to compile regular expressions in global scope to the module. The re's will then be compiled at zope load time. I am wondering if the same holds for lambdas. I created some simple filters using lambdas. I defined them in the functions where I use them. Is there any advantage to defining them globally to the module? Are there any gottcha's with globally scope objects? -- David Bear phone: 602-496-0424 fax: 602-496-0955 College of Public Programs/ASU University Center Rm 622 411 N Central Phoenix, AZ 85007-0685 "Beware the IP portfolio, everyone will be suspect of trespassing"