Get key based off of value in dictionary
Webdef appendabc (somedict): return dict (map (lambda (key, value): (str (key)+"abc", value), somedict.items ())) def transform (multilevelDict): new = appendabc (multilevelDict) for key, value in new.items (): if isinstance (value, dict): new [key] = transform (value) return new print transform ( {1:2, "bam":4, 33: {3:4, 5:7}}) WebJan 18, 2024 · You can use SelectMany to flatten the collection of dictionaries so you can iterate over each KeyValuePair in every dictionary: foreach (var temperature in temperatures .SelectMany (t => t)) { Label1.Text = $"at {temperature.Key} the temperture is {temperature.Value} degree"; }
Get key based off of value in dictionary
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WebApr 6, 2024 · Create a dictionary named test_dict and initialize it with key-value pairs. Create a list named filt_keys and initialize it with the keys that we want to extract values for. Print the original dictionary by converting it to a string and concatenating it with a string. WebAug 29, 2012 · If you want to check first, you can use TryGetValue like this: string xmlfile; if (!Data_Array.TryGetValue ("XML_File", out xmlfile)) { // the key isn't in the dictionary. …
WebDec 2, 2016 · If you just want one key, set k to 1 and extract the single element from the list that random.choices returns: random.choices (list (my_dict.keys ()), weights=my_dict.values (), k=1) [0] (If you don't convert my_dict.keys () to a list, you'll get a TypeError about how it's not subscriptable.) Here's the relevant snippet from the docs: WebAug 11, 2024 · Something like this can do it: for key, value in a.iteritems (): if value == 10: print key. If you want to save the associated keys to a value in a list, you edit the above …
WebAug 22, 2013 · You can do this for singular values (if you know the key) List values = myDictionary[someDateValue]; And you can use a foreach for iterating through all the … WebAug 25, 2012 · for key in d1: if key in wanted_keys: d2 [key] = d1 [key] update I recently figured out that there's a much cleaner way of doing that with dict comprehensions wanted_keys = set ( ['this_key', 'that_key']) new_dict = {k: d1 [k] for k in d1.keys () & wanted_keys} Share Improve this answer Follow edited Feb 15, 2024 at 13:10
WebDec 15, 2016 · Python: select dictionary items by key. a = { 'car1': ('high cp', 'low fd', 'safe'), 'car2': ('med cp', 'med fd', 'safe'), 'car3': ('low cp', 'high fd', 'safe'), 'taxi1': ('high cp', 'low …
WebAug 8, 2024 · dictA = { "key1": [val1, val2, val3], "key2": [val4, val5, val6], "key3": [val7, val8, val9] } key1 = { "A": "value", "B": "value", "C": "value" } for key, value in dictA.items (): … hepatosplenomegaly approachWebSo using Python 3.6+, you could get the index by converting the dict_keys to a list. dictionary = {'test': {1,3}, 'test2': {2}, 'test3': {2,3}} if 'test' in dictionary: print (list (dictionary).index ('test')) As another example, the following demonstrates how to find the index for a few keys of interest. hepatosplenomegaly anemiaWebJun 15, 2012 · A gotcha to be aware of when using .get(): If the dictionary contains the key used in the call to .get() and its value is None, the .get() method will return None even if … hepatosplenomegaly cancerWebMay 5, 2024 · You can just use the indexer ([]) of the Dictionary class along with the .ContainsKey() method. If you use something like this: string value; if … hepatosplenomegaly cholelithiasisWebexplanation : i.keys() and i.values() returns two lists with keys and values of the dictionary respectively. The zip function has the ability to tie together lists to produce a dictionary. p … hepatosplenomegaly in infantsWebMar 2, 2015 · Here you sort the dictionary items (key-value pairs) using a key - callable which establishes a total order on the items. Then, you just filter out needed values … hepatosplenomegaly ctWebSep 10, 2024 · You can create a dict that maps from values in the lists to keys in MainDict: MainDict= {'FAQ': ['FAQ','faq','Faq']} back_dict = {value: k for k,values in MainDict.items () for value in values} Then rewrite key_return to use this dict: def key_return (X): return back_dict [X] print (key_return ('faq')) hepatosplenomegaly medical definition