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Support multiple characters for comment in read_csv #21725

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orangeSi opened this issue Jul 4, 2018 · 6 comments
Closed

Support multiple characters for comment in read_csv #21725

orangeSi opened this issue Jul 4, 2018 · 6 comments
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Duplicate Report Duplicate issue or pull request Enhancement IO CSV read_csv, to_csv

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@orangeSi
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orangeSi commented Jul 4, 2018

my code is:

vcf = pd.read_table("com8-2.N85-2.merge.snp.vcf", header=0, sep="\t", comment="##")

and get this error:

ValueError: Only length-1 comment characters supported
the error means the length of comment must be one ? why not allowed for two characters ?

The python version is python3.6,
pandas version is pandas-0.20.3

thanks~
Si
@TomAugspurger TomAugspurger changed the title ValueError: Only length-1 comment characters supported for comment Support multiple characters for comment in read_csv Jul 4, 2018
@TomAugspurger TomAugspurger added Enhancement IO CSV read_csv, to_csv labels Jul 4, 2018
@TomAugspurger TomAugspurger added this to the Someday milestone Jul 4, 2018
@TomAugspurger
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It doesn't look like this will be easy to support, but people are welcome to try to implement it if they want.

@jreback
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jreback commented Jul 4, 2018

dupe of #8727

@jreback jreback closed this as completed Jul 4, 2018
@jreback jreback added the Duplicate Report Duplicate issue or pull request label Jul 4, 2018
@krishdb38
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me same Problem
ValueError: Only length-1 comment characters supported
df = pd.read_csv("/BiO/Preterm/raw_data/1009/1009.vcf", comment="##",low_memory = False)
i am doing reasearch in genome data
very difficult to convert medical data to pandas df

@nameOnStone
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the same problem, it's really weired

@bioXiaoheng
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Same here

@Lewis-W-S-Fisher
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Did this get a fix or anything, I'm having this problem too?

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@jreback @TomAugspurger @orangeSi @nameOnStone @bioXiaoheng @krishdb38 @Lewis-W-S-Fisher