从 python 中的列表列表中删除逗号
remove comma from list of lists in python
我正在学习python。我有一长串包含餐厅数据的列表。每个嵌套列表的格式为 [餐厅名称、评级、价格、菜系]。
我想用映射到餐厅名称的美食来填充字典,但有些餐厅有多种美食。如何删除逗号?我尝试直接拆分列表但收到错误消息,阅读文档后我意识到拆分不是列表方法。然后我尝试先索引列表,然后拆分字符串,但它似乎也不起作用。我错过了什么吗?预先感谢您的建议。
>>> x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
尝试 1 次错误
>>> y = x.split(',')
Traceback (most recent call last):
File "<pyshell#54>", line 1, in <module>
y = x.split(',')
AttributeError: 'list' object has no attribute 'split'
>>>
尝试 2 错误
>>> y = x.split(x[3])
Traceback (most recent call last):
File "<pyshell#55>", line 1, in <module>
y = x.split(x[3])
AttributeError: 'list' object has no attribute 'split'
尝试3,没有错误,但不是我想要的:(
>>> y = x[3].split(',')
>>> y
['Chinese', 'Thai', 'Japanese']
>>>
您可以索引每个项目并构建一个 dict
>>> {'name': x[0], 'popularity': x[1], 'price': x[2], 'cuisine': x[3].split(',')}
{'popularity': '83%',
'cuisine': ['Chinese', 'Thai', 'Japanese'],
'price': '$$',
'name': 'Flavour Fusion'}
如果您只想删除逗号,请使用替换:
x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
print(x[3].replace(","," "))
'Chinese Thai Japanese'
In [102]: x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
In [103]: d = {x[0]: x[3].replace(","," ")}
In [104]: d
Out[104]: {'Flavour Fusion': 'Chinese Thai Japanese'}
我正在学习python。我有一长串包含餐厅数据的列表。每个嵌套列表的格式为 [餐厅名称、评级、价格、菜系]。
我想用映射到餐厅名称的美食来填充字典,但有些餐厅有多种美食。如何删除逗号?我尝试直接拆分列表但收到错误消息,阅读文档后我意识到拆分不是列表方法。然后我尝试先索引列表,然后拆分字符串,但它似乎也不起作用。我错过了什么吗?预先感谢您的建议。
>>> x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
尝试 1 次错误
>>> y = x.split(',')
Traceback (most recent call last):
File "<pyshell#54>", line 1, in <module>
y = x.split(',')
AttributeError: 'list' object has no attribute 'split'
>>>
尝试 2 错误
>>> y = x.split(x[3])
Traceback (most recent call last):
File "<pyshell#55>", line 1, in <module>
y = x.split(x[3])
AttributeError: 'list' object has no attribute 'split'
尝试3,没有错误,但不是我想要的:(
>>> y = x[3].split(',')
>>> y
['Chinese', 'Thai', 'Japanese']
>>>
您可以索引每个项目并构建一个 dict
>>> {'name': x[0], 'popularity': x[1], 'price': x[2], 'cuisine': x[3].split(',')}
{'popularity': '83%',
'cuisine': ['Chinese', 'Thai', 'Japanese'],
'price': '$$',
'name': 'Flavour Fusion'}
如果您只想删除逗号,请使用替换:
x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
print(x[3].replace(","," "))
'Chinese Thai Japanese'
In [102]: x = ['Flavour Fusion', '83%', '$$', 'Chinese,Thai,Japanese']
In [103]: d = {x[0]: x[3].replace(","," ")}
In [104]: d
Out[104]: {'Flavour Fusion': 'Chinese Thai Japanese'}