[Zope3-checkins] CVS: Zope3/src/zope/configuration - config.py:1.10

[Jim Fulton]

Update of /cvs-repository/Zope3/src/zope/configuration
In directory cvs.zope.org:/tmp/cvs-serv16020/src/zope/configuration

Modified Files:
	config.py 
Log Message:
The old strategy for analyzing import errors was flawed. It could be
broken by installing import hooks.


=== Zope3/src/zope/configuration/config.py 1.9 => 1.10 ===
--- Zope3/src/zope/configuration/config.py:1.9	Sun Aug 17 02:08:49 2003
+++ Zope3/src/zope/configuration/config.py	Sun Sep 21 13:34:10 2003
@@ -174,6 +174,22 @@
             try:
                 return __import__(mname+'.'+oname, *_import_chickens)
             except ImportError:
+                
+                # We need to try to figure out what module the import
+                # error is complaining about.  If the import failed
+                # due to a failure to import some other module
+                # imported by the module we are importing, we want to
+                # know it. Unfortunately, the value of the import
+                # error is just a string error message. :( We can't
+                # pull it apart directly to see what module couldn't
+                # be imported. The only thing we can really do is to
+                # try to "screen scrape" the error message:
+
+                if str(sys.exc_info()[1]).find(oname) < 0:
+                    # There seems to have been an error further down,
+                    # so reraise the exception so as not to hide it.
+                    raise
+
                 raise ConfigurationError("Module %s has no global %s"
                                          % (mname, oname))