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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Implement remaining string format codes for floats","articleBody":"## Feature\r\n\r\nImplement the `g`, `G`, `e`, `E`, `n`, and `%` format codes for floats.\r\n\r\n- [x] g\r\n- [x] G\r\n- [x] e\r\n- [x] E\r\n- [x] n\r\n- [x] %\r\n\r\n## A few examples from CPython:\r\n```Python\r\n\u003e\u003e\u003e '{:g}'.format(10.0)\r\n'10'\r\n\u003e\u003e\u003e '{:.1g}'.format(10.0)\r\n'1e+01'\r\n\u003e\u003e\u003e '{:e}'.format(10.0)\r\n'1.000000e+01'\r\n\u003e\u003e\u003e '{:.1e}'.format(10.0)\r\n'1.0e+01'\r\n\u003e\u003e\u003e '{:n}'.format(999999.1234)\r\n'999999'\r\n\u003e\u003e\u003e '{:n}'.format(1000000.1234)\r\n'1e+06'\r\n\u003e\u003e\u003e '{:.8n}'.format(1000000.1234)\r\n'1000000.1'\r\n\u003e\u003e\u003e '{:.11n}'.format(1000000.1234)\r\n'1000000.1234'\r\n\u003e\u003e\u003e '{:%}'.format(10.0)\r\n'1000.000000%'\r\n```\r\n## RustPython\r\n```Python\r\n\u003e\u003e\u003e\u003e\u003e '{:g}'.format(10.0)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\nValueError: Format code 'g' for object of type 'float' not implemented yet\r\n\u003e\u003e\u003e\u003e\u003e '{:G}'.format(10.0)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\nValueError: Format code 'G' for object of type 'float' not implemented yet\r\n\u003e\u003e\u003e\u003e\u003e '{:e}'.format(10.0)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\nValueError: Format code 'e' for object of type 'float' not implemented yet\r\n\u003e\u003e\u003e\u003e\u003e '{:E}'.format(10.0)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\nValueError: Format code 'E' for object of type 'float' not implemented yet\r\n\u003e\u003e\u003e\u003e\u003e '{:n}'.format(10.0)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\nValueError: Format code 'n' for object of type 'float' not implemented yet\r\n\u003e\u003e\u003e\u003e\u003e '{:%}'.format(10.0)\r\n'10.0'\r\n```\r\n\r\n## Python Documentation\r\n\r\nSee the section after `The available presentation types for floating point and decimal values are` in the docs found [here](https://docs.python.org/3/library/string.html#format-specification-mini-language).\r\n","author":{"url":"https://github.com/doyshinda","@type":"Person","name":"doyshinda"},"datePublished":"2020-01-02T23:09:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/1656/RustPython/issues/1656"}