将python列表放入dict [英] python list into dict

问题描述

这是我的问题.

我有一个这样的列表(在我已经分配给列表元素的.txt文件中):

I have a list like this (out of a .txt file I have already assigned to a list element):

sharenames = ['VIAB:Viacom Inc.', 'DLTR:Dollar Tree Inc.', 'AAL:American Airlines Group Inc.', 'ROST:Ross Stores Inc.', 'VRTX:Vertex Pharmaceuticals Incorporated', 'WDC:Western Digital Corp', 'NCLH:Norwegian Cruise Line Holdings Ltd', 'SWKS:Skyworks Solutions Inc.', 'BBBY:Bed Bath & Beyond Inc.', 'BIDU:Baidu Inc (ADR)', 'ENDP:Endo International plc', '"FRA:DBK":Deutsche Bank AG', '"FRA:FME":Fresenius Medical Care AG & Co. KGaA', '"FRA:DAI":Daimler AG']

我想创建一个我可以访问访问权限的字典

I want to create a dictionary I can access access like

wertA = sharenames["FRA:FME"]  # as an example

或

wertA = sharenames[ROST]  # as an example

经过数小时的尝试和错误，希望您能为我提供帮助.

After some hours of try and error I hope you can help me out.

推荐答案

您可以从元组列表创建映射:

You can create a mapping from a list of tuples:

data =  ['VIAB:Viacom Inc.', 'DLTR:Dollar Tree Inc.', 'AAL:American Airlines Group Inc.', 'ROST:Ross Stores Inc.', 'VRTX:Vertex Pharmaceuticals Incorporated', 'WDC:Western Digital Corp', 'NCLH:Norwegian Cruise Line Holdings Ltd', 'SWKS:Skyworks Solutions Inc.', 'BBBY:Bed Bath & Beyond Inc.', 'BIDU:Baidu Inc (ADR)', 'ENDP:Endo International plc', '"FRA:DBK":Deutsche Bank AG', '"FRA:FME":Fresenius Medical Care AG & Co. KGaA', '"FRA:DAI":Daimler AG']
mapping = dict(entry.rsplit(':', 1) for entry in data)

注意，我正在最大程度地使用string.rsplit进行单个拆分(第二个参数).另外，这假设您的值中没有冒号.

Notice I'm using string.rsplit to the maximum of a single split (second argument). Also, this assumes you have no colons in your values.

映射项:

ENDP -> Endo International plc
WDC -> Western Digital Corp
VIAB -> Viacom Inc.
AAL -> American Airlines Group Inc.
DLTR -> Dollar Tree Inc.
BBBY -> Bed Bath & Beyond Inc.
"FRA:DAI" -> Daimler AG
VRTX -> Vertex Pharmaceuticals Incorporated
"FRA:FME" -> Fresenius Medical Care AG & Co. KGaA
SWKS -> Skyworks Solutions Inc.
NCLH -> Norwegian Cruise Line Holdings Ltd
ROST -> Ross Stores Inc.
"FRA:DBK" -> Deutsche Bank AG
BIDU -> Baidu Inc (ADR)

要清除双引号中的键，您可以执行以下操作:

To clean keys from double-quotes you can do:

clean_mapping = {k.replace('"',''): v for k, v in mapping}

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