[英]Escaped quotes in pandas read_csv
使用read_csv
时,我无法创建已转义引号的数据read_csv
。
(注意:R的read.csv
按预期工作。)
import pandas as pd
pd.read_csv('data.csv')
#error!
CParserError: Error tokenizing data. C error: Expected 2 fields in line 4, saw 3
SEARCH_TERM,ACTUAL_URL
"bra tv bord","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"
"tv på hjul","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"
"SLAGBORD, \"Bergslagen\", IKEA:s 1700-tals serie","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"
如何阅读此csv并避免此错误?
我的猜测是,大熊猫正在使用一些正则表达式,这些表达式无法处理第三行的歧义和行程,或者更具体地说: \\"Bergslagen\\"
。
它确实有效,但你必须指出嵌入式引号的转义字符:
In [1]: data = '''SEARCH_TERM,ACTUAL_URL
"bra tv bord","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"
"tv p\xc3\xa5 hjul","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"
"SLAGBORD, \\"Bergslagen\\", IKEA:s 1700-tals serie","http://www.ikea.com/se/sv/catalog/categories/departments/living_room/10475/?se%7cps%7cnonbranded%7cvardagsrum%7cgoogle%7ctv_bord"'''
In [2]: df = read_csv(StringIO(data), escapechar='\\', encoding='utf-8')
In [3]: df
Out[3]:
SEARCH_TERM ACTUAL_URL
0 bra tv bord http://www.ikea.com/se/sv/catalog/categories/d...
1 tv på hjul http://www.ikea.com/se/sv/catalog/categories/d...
2 SLAGBORD, "Bergslagen", IKEA:s 1700-tals serie http://www.ikea.com/se/sv/catalog/categories/d...
看到这个要点 。
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