[3.14] gh-144545: Improve handling of default values in Argument Clinic (GH-146016)#146052
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serhiy-storchaka merged 1 commit intopython:3.14from Mar 17, 2026
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…t Clinic (pythonGH-146016) * Add the c_init_default attribute which is used to initialize the C variable if the default is not explicitly provided. * Add the c_default_init() method which is used to derive c_default from default if c_default is not explicitly provided. * Explicit c_default and py_default are now almost always have precedence over the generated value. * Add support for bytes literals as default values. * Improve support for str literals as default values (support non-ASCII and non-printable characters and special characters like backslash or quotes). * Fix support for str and bytes literals containing trigraphs, "/*" and "*/". * Improve support for default values in converters "char" and "int(accept={str})". * Converter "int(accept={str})" now requires 1-character string instead of integer as default value. * Add support for non-None default values in converter "Py_buffer": NULL, str and bytes literals. * Improve error handling for invalid default values. * Rename Null to NullType for consistency. (cherry picked from commit 99e2c5e) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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