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Make TypeError message from Command.__init__ more useful

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Éric Araujo 2011-07-29 02:32:41 +02:00
parent 943006bf68
commit 7b0908a8e4
1 changed files with 2 additions and 1 deletions
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3
Lib/packaging/command/cmd.py
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@ -57,7 +57,8 @@ class Command:
from packaging.dist import Distribution from packaging.dist import Distribution
if not isinstance(dist, Distribution): if not isinstance(dist, Distribution):
raise TypeError("dist must be a Distribution instance") raise TypeError("dist must be an instance of Distribution, not %r"
% type(dist))
if self.__class__ is Command: if self.__class__ is Command:
raise RuntimeError("Command is an abstract class") raise RuntimeError("Command is an abstract class")