diff options
Diffstat (limited to 'docs/userguide')
| -rw-r--r-- | docs/userguide/extension.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/userguide/extension.rst b/docs/userguide/extension.rst index d5c169b9..78b2e7ef 100644 --- a/docs/userguide/extension.rst +++ b/docs/userguide/extension.rst @@ -103,7 +103,7 @@ The idea here is that the entry point defines a function that will be called to validate the ``setup()`` argument, if it's supplied. The ``Distribution`` object will have the initial value of the attribute set to ``None``, and the validation function will only be called if the ``setup()`` call sets it to -a non-None value. Here's an example validation function:: +a non-``None`` value. Here's an example validation function:: def assert_bool(dist, attr, value): """Verify that value is True, False, 0, or 1""" @@ -115,8 +115,8 @@ a non-None value. Here's an example validation function:: Your function should accept three arguments: the ``Distribution`` object, the attribute name, and the attribute value. It should raise a ``SetupError`` (from the ``setuptools.errors`` module) if the argument -is invalid. Remember, your function will only be called with non-None values, -and the default value of arguments defined this way is always None. So, your +is invalid. Remember, your function will only be called with non-``None`` values, +and the default value of arguments defined this way is always ``None``. So, your commands should always be prepared for the possibility that the attribute will be ``None`` when they access it later. |