Properly catch import errors in apt

When one accidentally tries to run this module as a user, he gets the error message that python-apt must be installed, no matter what. Because importing apt will trigger an exception as a regular user. Explicitly catching the ImportError will let the exception bubble. The exception clearly says Permission denied somewhere, and the user has a better idea, what he must fix.

Properly catch import errors in apt
When one accidentally tries to run this module as a user, he gets the error message that python-apt must be installed, no matter what. Because importing apt will trigger an exception as a regular user. Explicitly catching the ImportError will let the exception bubble. The exception clearly says Permission denied somewhere, and the user has a better idea, what he must fix.
38d6956c · Patrick Gerken · 47bfa8b9 · 38d6956c
Commit 38d6956c authored Mar 14, 2014 by Patrick Gerken
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library/packaging/apt
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--- a/library/packaging/apt
+++ b/library/packaging/apt
@@ -153,7 +153,7 @@ HAS_PYTHON_APT = True
 try:
    import apt
    import apt_pkg
-except:
+except ImportError:
    HAS_PYTHON_APT = False
 def package_split(pkgspec):