从python中的列表元素列表中删除双引号

Question

我有一个列表，我想从每一行中删除内部双引号

最初是这样的：

[['"MILK,BREAD,BISCUIT"'], ['"BREAD,MILK,BISCUIT,CORNFLAKES"']]

在修复代码后，我得到了以下信息：

[['"MILK', 'BREAD', 'BISCUIT"'], ['"BREAD', 'MILK', 'BISCUIT', 'CORNFLAKES"']]

我想要这样的

[['MILK', 'BREAD', 'BISCUIT'], ['BREAD', 'MILK', 'BISCUIT', 'CORNFLAKES']]

我尽了最大的努力，但我不知道怎么做

我的代码如下所示：

def getFeatureData(featureFile):
x=[]
dFile = open(featureFile, 'r')
for line in dFile:
    row = line.split()
    #row[-1]=row[-1].strip()
    x.append(row)
dFile.close()
print(x)
return x

Answer 1

尝试以下方法，使用列表：

initial = [['"MILK,BREAD,BISCUIT"'], ['"BREAD,MILK,BISCUIT,CORNFLAKES"']]

final = [item[0].replace('"', '').split(',') for item in initial]

print(final)

输出：

[['MILK', 'BREAD', 'BISCUIT'], ['BREAD', 'MILK', 'BISCUIT', 'CORNFLAKES']]

Answer 2

您可以使用替换和列表理解

list_with_quotes = [['"MILK,BREAD,BISCUIT"'], ['"BREAD,MILK,BISCUIT,CORNFLAKES"']]
list_without_quotes = [[l[0].replace('"','')] for l in list_with_quotes]
print(list_without_quotes)
>>out
>>[['MILK,BREAD,BISCUIT'], ['BREAD,MILK,BISCUIT,CORNFLAKES']]

很抱歉，我做得很快，没有注意到我的输出并不是您想要的。下面是执行此任务的for循环：

list_without_quotes = []
for l in list_with_quotes:
    # get list
    with_quotes = l[0]
    # separate words by adding spaces before and after comma to use split
    separated_words = with_quotes.replace(","," ")
    # remove quotes in each word and recreate list
    words = [ w.replace('"','') for w in separated_words.split()]
    # append list to final list
    list_without_quotes.append(words)
print(list_without_quotes)
>>out
>>[['MILK', 'BREAD', 'BISCUIT'], ['BREAD', 'MILK', 'BISCUIT', 'CORNFLAKES']]