# PEP 570: Python Positional-Only Parameters

**URL:** <https://discuss.python.org/t/pep-570-python-positional-only-parameters/1078>\
**Category:** PEPs\
**Created:** [March 28, 2019, 12:04am UTC](https://discuss.python.org/t/pep-570-python-positional-only-parameters/1078 "2019-03-28T00:04:34Z")\
**Posts on this page:** 1\
**Showing post:** 53

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**Author:** ![steve.dower](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/steve.dower/32/56_2.png) [@steve.dower](https://discuss.python.org/u/steve.dower)\
**Post date:** [March 29, 2019, 6:03pm UTC](https://discuss.python.org/t/pep-570-python-positional-only-parameters/1078/53 "2019-03-29T18:03:29Z")

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Many of these changes are breaking, since people may be passing the existing arguments by name. How much more difficult do we want to make it to port to 3.8? **(Edit: or whichever version this lands in)**

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