“namedtuple python” Código de respuesta

namedtuple python

# Python code to demonstrate namedtuple() and
# _make(), _asdict() and "**" operator
 
# importing "collections" for namedtuple()
import collections
 
# Declaring namedtuple()
Student = collections.namedtuple('Student',
                                 ['name', 'age', 'DOB'])
 
# Adding values
S = Student('Nandini', '19', '2541997')
 
# initializing iterable
li = ['Manjeet', '19', '411997']
 
# initializing dict
di = {'name': "Nikhil", 'age': 19, 'DOB': '1391997'}
 
# using _make() to return namedtuple()
print("The namedtuple instance using iterable is  : ")
print(Student._make(li))
 
# using _asdict() to return an OrderedDict()
print("The OrderedDict instance using namedtuple is  : ")
print(S._asdict())
 
# using ** operator to return namedtuple from dictionary
print("The namedtuple instance from dict is  : ")
print(Student(**di))
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mostrador de pitón

sum(c.values())                 # total of all counts
c.clear()                       # reset all counts
list(c)                         # list unique elements
set(c)                          # convert to a set
dict(c)                         # convert to a regular dictionary
c.items()                       # convert to a list of (elem, cnt) pairs
Counter(dict(list_of_pairs))    # convert from a list of (elem, cnt) pairs
c.most_common()[:-n-1:-1]       # n least common elements
c += Counter()                  # remove zero and negative counts
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