string to float to int

[wr]

BPO	2653
Nosy	@rhettinger, @amauryfa

^{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 2008-04-18.07:34:57.608>
created_at = <Date 2008-04-18.07:17:05.251>
labels = ['type-bug', 'invalid']
title = 'string to float to int'
updated_at = <Date 2008-04-18.08:12:26.816>
user = 'https://bugs.python.org/wr'

bugs.python.org fields:

activity = <Date 2008-04-18.08:12:26.816>
actor = 'rhettinger'
assignee = 'none'
closed = True
closed_date = <Date 2008-04-18.07:34:57.608>
closer = 'amaury.forgeotdarc'
components = ['None']
creation = <Date 2008-04-18.07:17:05.251>
creator = 'wr'
dependencies = []
files = []
hgrepos = []
issue_num = 2653
keywords = []
message_count = 3.0
messages = ['65602', '65604', '65605']
nosy_count = 3.0
nosy_names = ['rhettinger', 'amaury.forgeotdarc', 'wr']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue2653'
versions = ['Python 2.5']

[wr]

IDLE 1.2.1      
>>> print int(float('1.005')*1000)
1004

[amauryfa]

Yes, and 
  >>> 1.005 * 1000
  1004.9999999999999

Please read
http://www.python.org/doc/faq/general/#why-are-floating-point-calculations-so-inaccurate

To perform exact base-10 calculation, you may use the Decimal module.
Or use round() instead of the int() truncation.

[rhettinger]

>>> int('%.0f' % (float('1.005')*1000))
1005

>>> int(Decimal('1.005')*1000)
1005