<Test>test_strformat.py (test_format_field_name_split)</Test>
 
D:\rft\vsl\dlr\Languages\IronPython\Tests>26 -c "list('a[1]a'._formatter_field_name_split()[1])"
 
D:\rft\vsl\dlr\Languages\IronPython\Tests>27 -c "list('a[1]a'._formatter_field_name_split()[1])"
Traceback (most recent call last):
File "<string>", line 1, in <module>
ValueError: Only '.' or '[' may follow ']' in format field specifier
 
D:\rft\vsl\dlr\Languages\IronPython\Tests>ipyd -c "list('a[1]a'._formatter_field_name_split()[1])"
 
D:\rft\vsl\dlr\Languages\IronPython\Tests>