是否有可能读取CSV文件空白的标题并且不区分大小写?至于现在,我像这样使用csv.dictreader
:
import csv
csvDict = csv.DictReader(open('csv-file.csv', 'rU'))
# determine column_A name
if 'column_A' in csvDict.fieldnames:
column_A = 'column_A'
elif ' column_A' in csvDict.fieldnames:
# extra space
column_A = ' column_A'
elif 'Column_A' in csvDict.fieldnames:
# capital A
column_A = 'Column_A'
# get column_A data
for lineDict in csvDict:
print(lineDict[column_A])
从代码中可以看出,我的csv文件有时会有额外的空格或大写字母,例如
我想使用这样的东西:
column_A = ' Column_A'.strip().lower()
print(lineDict[column_A])
有什么想法吗?
答案 0 :(得分:9)
您可以重新定义reader.fieldnames
:
import csv
import io
content = '''column_A " column_B"
1 2'''
reader = csv.DictReader(io.BytesIO(content), delimiter = ' ')
reader.fieldnames = [field.strip().lower() for field in reader.fieldnames]
for line in reader:
print(line)
产量
{'column_b': '2', 'column_a': '1'}
答案 1 :(得分:5)
如何覆盖DictReader.fieldnames
属性?
class MyDictReader(DictReader):
@property
def fieldnames(self):
return [field.strip().lower() for field in super(MyDictReader, self).fieldnames]