Webfor some reason dict.fromkeys () is making every key's value to be duplicated ( like the items i gave are all "linked" or pointing to the same place in memory ) try: a = dict.fromkeys ( ['op1', 'op2'], {}) and then a ["op1"] = 3 you'll see that also a ["op2"] was populated – Ricky Levi Nov 29, 2024 at 19:56 Add a comment 19 WebApr 10, 2014 · – dreftymac Jan 6, 2024 at 3:31 Add a comment 6 Answers Sorted by: 42 Another option is to use .fromkeys (): fromkeys (seq [, value]) Create a new dictionary with keys from seq and values set to value. d = d.fromkeys (d, 0) Demo:

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WebAlternatively make a dict_set and iterate over locals () but this is uglier than sin. dict_set = {dict1,dicta,dict666} for name,value in locals ().items (): if value in dict_set: print 'the name of the dictionary is ', name print 'the dictionary looks like ', value Again: uglier than sin, but it DOES work. Share Improve this answer Follow WebSep 28, 2024 · a quick explanation about the fromkeys method. bin the banter

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Web使用.fromkeys()類方法 ：. dayDict = dict.fromkeys(weekList, 0) 它使用第一個參數（一個序列）的元素作為鍵，並使用第二個參數（默認為None ）作為所有條目的值來構建字典。. 從本質上講，此方法將對所有鍵重用該值； 不要將其傳遞為可變值，例如列表或字典，並希望它為每個鍵創建該可變值的單獨副本。 WebPhương thức fromkeys () được sử dụng để tạo một Dictionary mới từ dãy seq và value1. Trong đó dãy seq tạo nên các key và tất cả các key chia sẻ các giá trị từ value1. Trong trường hợp value1 không được cung cấp thì value của các key được thiết lập là None. WebFeb 25, 2016 · Syntax Following is the syntax for fromkeys () method − dict.fromkeys (seq [, value])) Parameters -seq -- This is the list of values which would be used for dictionary keys preparation. -value -- This is optional, if provided then value would be set to this value I hope it can help you. Share Follow edited Oct 24, 2015 at 10:14 binthe biluhuta