saving to file add inexistance characters

[Gravitania]

BPO	23131
Nosy	@benjaminp
Files	Python_Send.7z: File with the Python script, the xml examples and the .csv result

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

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2014-12-30.05:59:06.794>
created_at = <Date 2014-12-30.04:21:10.466>
labels = ['type-bug', 'invalid', 'expert-IO']
title = 'saving to file add inexistance characters'
updated_at = <Date 2014-12-30.05:59:06.792>
user = 'https://bugs.python.org/Gravitania'

bugs.python.org fields:

activity = <Date 2014-12-30.05:59:06.792>
actor = 'benjamin.peterson'
assignee = 'none'
closed = True
closed_date = <Date 2014-12-30.05:59:06.794>
closer = 'benjamin.peterson'
components = ['IO']
creation = <Date 2014-12-30.04:21:10.466>
creator = 'Gravitania'
dependencies = []
files = ['37559']
hgrepos = []
issue_num = 23131
keywords = []
message_count = 2.0
messages = ['233190', '233192']
nosy_count = 2.0
nosy_names = ['benjamin.peterson', 'Gravitania']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue23131'
versions = ['Python 3.4']

[Gravitania]

I make an xml extractor for mexican internet invoices; the extraction is correct, but when save to csv, some numbers has additional numbers that does not exist, for example 5010.000000 is saved as 5010.0000002. As you can see in the print function at line 155.

The problem is in Python 3.4.2 in machines with windows xp, windows 7 and windows 8
It is an small error, but this data is used for Accounting.

Thanks in advance and best regards.
Rosa Maria

[benjaminp]

That's because line 153 prints extra numbers at the end of the total.