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round docstring is inaccurate #47441

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mdickinson opened this issue Jun 24, 2008 · 2 comments
Closed

round docstring is inaccurate #47441

mdickinson opened this issue Jun 24, 2008 · 2 comments
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docs Documentation in the Doc dir

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@mdickinson
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BPO 3191
Nosy @birkenfeld, @mdickinson

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = 'https://github.com/mdickinson'
closed_at = <Date 2008-07-01.20:40:12.149>
created_at = <Date 2008-06-24.15:03:36.574>
labels = ['docs']
title = 'round docstring is inaccurate'
updated_at = <Date 2008-07-01.20:40:12.144>
user = 'https://github.com/mdickinson'

bugs.python.org fields:

activity = <Date 2008-07-01.20:40:12.144>
actor = 'georg.brandl'
assignee = 'mark.dickinson'
closed = True
closed_date = <Date 2008-07-01.20:40:12.149>
closer = 'georg.brandl'
components = ['Documentation']
creation = <Date 2008-06-24.15:03:36.574>
creator = 'mark.dickinson'
dependencies = []
files = []
hgrepos = []
issue_num = 3191
keywords = []
message_count = 2.0
messages = ['68690', '69073']
nosy_count = 2.0
nosy_names = ['georg.brandl', 'mark.dickinson']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue3191'
versions = ['Python 3.0']
@mdickinson
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In Python 3.0, help(round) gives the following:

round(...)
    round(number[, ndigits]) -> floating point number
    
    Round a number to a given precision in decimal digits (default 0 
digits).
    This returns an int when called with one argument, otherwise a 
float.
    Precision may be negative.

But in Python 3.x, round(x, n) doesn't always return a float; for
example, if x is a Decimal or Fraction then round(x, 2) is again a
Decimal or Fraction (respectively).

@mdickinson mdickinson added the docs Documentation in the Doc dir label Jun 24, 2008
@mdickinson mdickinson assigned mdickinson and unassigned birkenfeld Jun 30, 2008
@birkenfeld
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Fixed in r64634.

@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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