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A suggested change #66722

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PadmanabhanTr mannequin opened this issue Oct 1, 2014 · 4 comments
Closed

A suggested change #66722

PadmanabhanTr mannequin opened this issue Oct 1, 2014 · 4 comments
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interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error

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@PadmanabhanTr
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Mannequin

PadmanabhanTr mannequin commented Oct 1, 2014

BPO 22532
Nosy @Wooble

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 = None
closed_at = <Date 2014-10-01.14:49:19.682>
created_at = <Date 2014-10-01.14:27:46.892>
labels = ['interpreter-core', 'type-bug', 'invalid']
title = 'A suggested change'
updated_at = <Date 2014-10-01.16:04:25.539>
user = 'https://bugs.python.org/PadmanabhanTr'

bugs.python.org fields:

activity = <Date 2014-10-01.16:04:25.539>
actor = 'Padmanabhan.Tr'
assignee = 'none'
closed = True
closed_date = <Date 2014-10-01.14:49:19.682>
closer = 'eric.smith'
components = ['Interpreter Core']
creation = <Date 2014-10-01.14:27:46.892>
creator = 'Padmanabhan.Tr'
dependencies = []
files = []
hgrepos = []
issue_num = 22532
keywords = []
message_count = 4.0
messages = ['228073', '228076', '228080', '228081']
nosy_count = 2.0
nosy_names = ['geoffreyspear', 'Padmanabhan.Tr']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue22532'
versions = ['Python 3.4']
@PadmanabhanTr
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PadmanabhanTr mannequin commented Oct 1, 2014

Take a complex number n = 3+4j. n.real is taken as 3.0 & n.imag as 4.0 in Python3. One has to use the int(0 function to get back the parts as integers. I guess this is a compiler error?

@PadmanabhanTr PadmanabhanTr mannequin added the build The build process and cross-build label Oct 1, 2014
@Wooble
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Wooble mannequin commented Oct 1, 2014

From the documentation: "Complex numbers have a real and imaginary part, which are each a floating point number."

Needing to use int() to convert these floats to integers is not a bug, it's the expected behavior.

@Wooble Wooble mannequin added interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error and removed build The build process and cross-build labels Oct 1, 2014
@PadmanabhanTr
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PadmanabhanTr mannequin commented Oct 1, 2014

Dear Mr SpearThanks for the prompt response & clarification.(in Python) If the real & imaginary parts of numbers you deal with are integers, results of operations (except division)  - like +, -, *, **, - appear with respective integers as real & imginary parts.  In line with these, changes in '.real' & '.imag' may be desirable?

 On Wednesday, October 1, 2014 8:19 PM, Eric V. Smith <report@bugs.python.org> wrote:

Changes by Eric V. Smith <eric@trueblade.com>:

----------
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

Python tracker <report@bugs.python.org>
<http://bugs.python.org/issue22532\>

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@PadmanabhanTr
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PadmanabhanTr mannequin commented Oct 1, 2014

Dear Mr SpearThanks for the prompt response & clarification.(in Python) If the real & imaginary parts of numbers you deal with are integers, results of operations (except division)  - like +, -, *, **, - appear with respective integers as real & imginary parts.  In line with these, changes in '.real' & '.imag' may be desirable?

 On Wednesday, October 1, 2014 8:19 PM, Eric V. Smith <report@bugs.python.org> wrote:

Changes by Eric V. Smith <eric@trueblade.com>:

----------
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

Python tracker <report@bugs.python.org>
<http://bugs.python.org/issue22532\>

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