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| -rw-r--r-- | Doc/reference/executionmodel.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Doc/reference/executionmodel.rst b/Doc/reference/executionmodel.rst index 69a6259a23..c5a24e9ca0 100644 --- a/Doc/reference/executionmodel.rst +++ b/Doc/reference/executionmodel.rst @@ -52,7 +52,13 @@ variable is defined in a block, its scope includes that block. If the definition occurs in a function block, the scope extends to any blocks contained within the defining one, unless a contained block introduces a different binding for the name. The scope of names defined in a class block is limited to the -class block; it does not extend to the code blocks of methods. +class block; it does not extend to the code blocks of methods -- this includes +generator expressions since they are implemented using a function scope. This +means that the following will fail:: + + class A: + a = 42 + b = list(a + i for i in range(10)) .. index:: single: environment |