[Tutor] Importing and creation on the fly

[Tino Dai]

Hi there,

     I've been banging my head on this for about two weeks, and I can't
figure out a solution to this. I'm wondering if you could assist me on this
pesky problem.

     I'm reading in an xml file that has the name of class, location, and
the filename into a dictionary. I want to import these classes and create
instances of them.  The code in question is as follows:

 36       for xmlKey in self.dictXML.keys():
 37             if not self.dictXML[xmlKey]['location'] in sys.path and \
 38             not self.dictXML[xmlKey]['location'] == os.getcwd():
 39                 sys.path.append(self.dictXML[xmlKey]['location'])
 40             try:
 41                 if os.stat(self.dictXML[xmlKey]['location'] + \
 42                 self.dictXML[xmlKey]['filename']):
 43                     eval('import ' + self.dictXML[xmlKey]["class"])
<-- syntax error here
 44                     actionStmt=self.dictXML[xmlKey]["class"] + '.' +
self.dictXML[xmlKey]["class"] + '()' 45
45                          self.objList.append(eval(actionStmt))
46             except:
 47                 pass


I have also tried: __import__(self.dictXML[xmlKey]["class"]), which gave me
an error when I did the eval(actionStmt). Could anybody shed some light on
this? Thanks in advance.

-Tino
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