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+--- Thread: extracting second values elements only in every keys in an OrderedDict (/thread-30883.html)
extracting second values elements only in every keys in an OrderedDict - glennford49 - Nov-11-2020
i have this code, i want to extract the second values elements only in every keys in an OrderedDict,
i dont want to use for loop,any idea on this ?
from collections import OrderedDict
regDict= OrderedDict()
regDict["glenn"] = (100,200)
regDict["elena"] = (10,20)
print("values",list(regDict.values())[0][1])
print("values",list(regDict.values())[1][1])print:values 200 values 20target output:
values 200,20 # or values ( 200,20 )
RE: extracting second values elements only in every keys in an OrderedDict - DeaD_EyE - Nov-11-2020
Straight forward with a list comprehension:
from collections import OrderedDict
regDict = OrderedDict([('glenn', (100, 200)), ('elena', (10, 20))])
second_values = [vals[1] for vals in regDict.values()]There are other methods like using itemgetter and map.from collections import OrderedDict
from operator import itemgetter
regDict = OrderedDict([('glenn', (100, 200)), ('elena', (10, 20))])
getter = itemgetter(1)
second_values = list(map(getter, regDict.values()))
RE: extracting second values elements only in every keys in an OrderedDict - Gribouillis - Nov-11-2020
glennford49 Wrote:i dont want to use for loopWhy don't you want to use for loop? Where does this requirement come from?
RE: extracting second values elements only in every keys in an OrderedDict - DeaD_EyE - Nov-11-2020
(Nov-11-2020, 02:25 PM)Gribouillis Wrote: Where does this requirement come from?
From the teacher, I guess.
What I posted with
map is also a loop, but hidden in C.
RE: extracting second values elements only in every keys in an OrderedDict - glennford49 - Nov-12-2020
thanks, +1, this saves my day