a DOg@s&dZgdZddlZddlZddlZddlmZ ddlm Z ddlm Z ddlmZddlmZdd lmZdd lmZdd lmZzdd lmZWneyYn0ej ezdd lm!Z!WneyYn0ddZ"Gdddej#Z$Gdddej%Z&Gdddej'Z(Gddde)Z*Gddde+Z,zddlm,Z,WneyZYn0zddlm-Z-WneyddZ-Yn0ddddd d!Z.d"d#Z/zdd$lm/Z/WneyYn0Gd%d&d&e+Z0Gd'd(d(ej1Z2Gd)d*d*ej1Z3Gd+d,d,ejZ4Gd-d.d.ej5Z6dS)/a?This module implements specialized container datatypes providing alternatives to Python's general purpose built-in containers, dict, list, set, and tuple. * namedtuple factory function for creating tuple subclasses with named fields * deque list-like container with fast appends and pops on either end * ChainMap dict-like class for creating a single view of multiple mappings * Counter dict subclass for counting hashable objects * OrderedDict dict subclass that remembers the order entries were added * defaultdict dict subclass that calls a factory function to supply missing values * UserDict wrapper around dictionary objects for easier dict subclassing * UserList wrapper around list objects for easier list subclassing * UserString wrapper around string objects for easier string subclassing ) ChainMapCounter OrderedDictUserDictUserList UserString defaultdictdeque namedtupleN)chain)repeat)starmap) iskeyword)eq) itemgetter)recursive_repr)proxy)r)rcCsR|tjvr:tt|}ddl}|jdtdd|t|<|Stdtd|dS)Nr zUsing or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3, and in 3.10 it will stop working) stacklevelzmodule z has no attribute ) _collections_abc__all__getattrwarningswarnDeprecationWarningglobalsAttributeError__name__)nameobjrr 9/opt/alt/python39/lib64/python3.9/collections/__init__.py __getattr__7s   r"c@seZdZddZdS)_OrderedDictKeysViewccst|jEdHdSNreversed_mappingselfr r r! __reversed__Msz!_OrderedDictKeysView.__reversed__Nr __module__ __qualname__r*r r r r!r#Ksr#c@seZdZddZdS)_OrderedDictItemsViewccs$t|jD]}||j|fVq dSr$r%r)keyr r r!r*Rsz"_OrderedDictItemsView.__reversed__Nr+r r r r!r.Psr.c@seZdZddZdS)_OrderedDictValuesViewccs t|jD]}|j|Vq dSr$r%r/r r r!r*Xsz#_OrderedDictValuesView.__reversed__Nr+r r r r!r1Vsr1c@seZdZdZdS)_Link)prevnextr0 __weakref__N)rr,r- __slots__r r r r!r2\sr2c@seZdZdZd1ddZejeefddZej fddZ d d Z d d Z d dZ d2ddZ d3ddZddZejjZZddZddZddZejjZeZefddZd4dd Zed!d"Zd#d$Zd%d&Ze d5d'd(Z!d)d*Z"d+d,Z#d-d.Z$d/d0Z%dS)6rz)Dictionary that remembers insertion orderr cKs^z |jWn<tyFt|_t|j|_}||_|_i|_Yn0|j|fi|dS)zInitialize an ordered dictionary. 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Used by copy and pickle.r r()_tupler r!__getnewargs__sz"namedtuple..__getnewargs__.r ) rzr6r_field_defaultsrrrrbrrzAlias for field number r__main__)%rlstrreplacesplitrarorQinternset enumerate isidentifier _iskeyword startswithaddtyperrtuplerSrKr&zipjoinrevalrrz __defaults__r__func__r-r _getframe f_globalsgetrr,)typenamerrrrseenrrfield_defaultsarg_list namespacecoderrrrbrrmethodclass_namespacerr]r ) rrrrrrrrrr!r Ys                 r cCs&|j}|D]}||dd||<q dS)z!Tally elements from the iterable.r rPN)r)mappingrjZ mapping_getelemr r r!_count_elementssr)rcseZdZdZd/fdd ZddZd0ddZd d Zed1d d Z d2fd d Z d3ddZ ddZ ddZ fddZddZddZddZddZdd Zd!d"Zd#d$Zd%d&Zd'd(Zd)d*Zd+d,Zd-d.ZZS)4raDict subclass for counting hashable items. Sometimes called a bag or multiset. Elements are stored as dictionary keys and their counts are stored as dictionary values. >>> c = Counter('abcdeabcdabcaba') # count elements from a string >>> c.most_common(3) # three most common elements [('a', 5), ('b', 4), ('c', 3)] >>> sorted(c) # list all unique elements ['a', 'b', 'c', 'd', 'e'] >>> ''.join(sorted(c.elements())) # list elements with repetitions 'aaaaabbbbcccdde' >>> sum(c.values()) # total of all counts 15 >>> c['a'] # count of letter 'a' 5 >>> for elem in 'shazam': # update counts from an iterable ... c[elem] += 1 # by adding 1 to each element's count >>> c['a'] # now there are seven 'a' 7 >>> del c['b'] # remove all 'b' >>> c['b'] # now there are zero 'b' 0 >>> d = Counter('simsalabim') # make another counter >>> c.update(d) # add in the second counter >>> c['a'] # now there are nine 'a' 9 >>> c.clear() # empty the counter >>> c Counter() Note: If a count is set to zero or reduced to zero, it will remain in the counter until the entry is deleted or the counter is cleared: >>> c = Counter('aaabbc') >>> c['b'] -= 2 # reduce the count of 'b' by two >>> c.most_common() # 'b' is still in, but its count is zero [('a', 3), ('c', 1), ('b', 0)] Nc s t|j|fi|dS)a Create a new, empty Counter object. And if given, count elements from an input iterable. Or, initialize the count from another mapping of elements to their counts. >>> c = Counter() # a new, empty counter >>> c = Counter('gallahad') # a new counter from an iterable >>> c = Counter({'a': 4, 'b': 2}) # a new counter from a mapping >>> c = Counter(a=4, b=2) # a new counter from keyword args N)superr?rr)r)rjr=rhr r!r?Es zCounter.__init__cCsdS)z1The count of elements not in the Counter is zero.r r r/r r r! __missing__SszCounter.__missing__cCs6|durt|tdddStj||tddS)zList the n most common elements and their counts from the most common to the least. If n is None, then list all element counts. >>> Counter('abracadabra').most_common(3) [('a', 5), ('b', 2), ('r', 2)] NrPT)r0reverser0)sortedrYr_heapqnlargestr)rUr r r! most_commonXs zCounter.most_commoncCsttt|S)aIterator over elements repeating each as many times as its count. >>> c = Counter('ABCABC') >>> sorted(c.elements()) ['A', 'A', 'B', 'B', 'C', 'C'] # Knuth's example for prime factors of 1836: 2**2 * 3**3 * 17**1 >>> prime_factors = Counter({2: 2, 3: 3, 17: 1}) >>> product = 1 >>> for factor in prime_factors.elements(): # loop over factors ... product *= factor # and multiply them >>> product 1836 Note, if an element's count has been set to zero or is a negative number, elements() will ignore it. )_chain from_iterable_starmap_repeatrYr(r r r!elementseszCounter.elementscCs tddS)Nz@Counter.fromkeys() is undefined. 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Source can be an iterable, a dictionary, or another Counter instance. >>> c = Counter('which') >>> c.subtract('witch') # subtract elements from another iterable >>> c.subtract(Counter('watch')) # subtract elements from another counter >>> c['h'] # 2 in which, minus 1 in witch, minus 1 in watch 0 >>> c['w'] # 1 in which, minus 1 in witch, minus 1 in watch -1 Nr rP)rrlrrrYsubtractrr r r!rs zCounter.subtractcCs ||S)zReturn a shallow copy.rhr(r r r!rdsz Counter.copycCs|jt|ffSr$)r`rKr(r r r!rgszCounter.__reduce__cs||vrt|dS)zGLike dict.__delitem__() but does not raise KeyError for missing values.N)rrG)r)rrhr r!rGszCounter.__delitem__cCsR|s|jjdSzt|}Wnty<t|}Yn0|jjd|dS)Nz()rr)r`rrKrr)r)dr r r!rbs zCounter.__repr__cCspt|tstSt}|D]$\}}|||}|dkr|||<q|D] \}}||vrJ|dkrJ|||<qJ|S)zAdd counts from two counters. >>> Counter('abbb') + Counter('bcc') Counter({'b': 4, 'c': 2, 'a': 1}) r rlrrurYr)r<r]rrnewcountr r r!__add__s    zCounter.__add__cCstt|tstSt}|D]$\}}|||}|dkr|||<q|D]$\}}||vrJ|dkrJd|||<qJ|S)z Subtract count, but keep only results with positive counts. >>> Counter('abbbc') - Counter('bccd') Counter({'b': 2, 'a': 1}) r rrr r r!__sub__s   zCounter.__sub__cCs|t|tstSt}|D]0\}}||}||kr8|n|}|dkr|||<q|D] \}}||vrV|dkrV|||<qV|S)zUnion is the maximum of value in either of the input counters. >>> Counter('abbb') | Counter('bcc') Counter({'b': 3, 'c': 2, 'a': 1}) r rr)r<r]rr other_countrr r r!rxs   zCounter.__or__cCsRt|tstSt}|D]0\}}||}||kr8|n|}|dkr|||<q|S)z Intersection is the minimum of corresponding counts. >>> Counter('abbb') & Counter('bcc') Counter({'b': 1}) r rrr r r!__and__'s  zCounter.__and__cCs,t}|D]\}}|dkr|||<q|S)zEAdds an empty counter, effectively stripping negative and zero countsr rrYr)r]rrr r r!__pos__8s  zCounter.__pos__cCs0t}|D]\}}|dkrd|||<q|S)z{Subtracts from an empty counter. 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