Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

tuple to dict

A
Avante last edited by
```
g = (('a','1'),('a','2'),('b','1'),('b','2'))
dict((y, x) for y, x in g)
{'a': '2', 'b': '2'}
```
How do you get all the keys and meanings in dict?
Reply Quote 0
1 Reply Last reply

magpie QA Engineer

If I understand correctly, you need a multimap analog from C+++. There's no such thing in the python, but You can just use the dict that keeps the lists:

import collections
from collections import defaultdict
g = (('a','1'),('a','2'),('b','1'),('b','2'))

d = defaultdict(list)

[d[x].append(y) for (x, y) in g]

print d
>>> defaultdict(<type 'list'>, {'a': ['1', '2'], 'b': ['1', '2']})

python 57244

2
Posts

0
Views

Suggested Topics

K

Group list of tuples in dictionary optimally on Python
Software Programming • python optimization group by itertools • • kalena

2

0
Votes

2
Posts

0
Views

B

Curiously a much more "ingenuo" approach, without use of itertoolsproduces a much shorter time:from collections import defaultdict def transformar(lista): diccionario = defaultdict(list) for letra, numero in lista: diccionario[letra].append(numero) return diccionario As your implementation reports to me a time of execution of 17.18s, which I have just proposed takes only 3.96sI guess it's redundant in your code to call first itertools.group(), which has to iterate all the list to create the groups, to then go back to iterar in each created group. In the end you would go twice for the same data, while my code would only be one. On the other hand, the use of defaultdict Makes it unnecessary to call setdefault()That your code was running numero times and possibly the main reason for the execution time.
A

How can we find the words that are given in the second set in the first set?
Software Programming • python python 3.x • • Anderson

2

0
Votes

2
Posts

0
Views

Determine the necessary values:elements = ['vlrtakeon', 'itredflow', 'ntuemturn', 'trgteaylp', 'arraysryi', 'gshjshhkg', 'etoesingg'] words = ['vintage' 'take', 'flow', 'remark', 'tea', 'array', 'toe', 'sing', 'turn', 'red', 'pig'] Example of a horizontal solution:for word in words: for element in elements: if word in element: print(word, ' входит в ', element) Consul:# flow входит в itredflow tea входит в trgteaylp array входит в arraysryi toe входит в etoesingg sing входит в etoesingg turn входит в ntuemturn red входит в itredflow Example of the vertical solution:verical_words = [] # Создадим массив для слов по вертикали every_element_len = 9 # Зададим значение для длины каждого слова for i in range (0, every_element_len): # Пройдемся циклом от 0 до заданной длины каждого слова vertical_word = [] # Создадим массив для каждого знака вертикального слова for element in elements: # Пройдемся циклом по всем элементам vertical_word.append(element[i]) # Наполним массив для каждого знака значениями verical_words.append(''.join(vertical_word)) # Конвертируем знаки в строковые значения Выполним поиск (смысл vertical_word заменится): for word in words: for vertical_word in verical_words: if word in vertical_word: print(word, ' входит в ', vertical_word) Consul:# vintage входит в vintage pig входит в nwnpigg
Z

How to make a restriction by variable in random.randint()
Software Programming • python emergency numbers aiogram • • zymir

2

0
Votes

2
Posts

0
Views

P

According to your code, the user sends the team. start and you're in the same function checking what's in it. message.textAlthough there's only a team. start♪So your code is about the following:Если пользователь отправляет команду "start", то отправить ему сообщение "Напишите число, от 1 до которого я загадаю число:" Получить, что написал пользователь (будет "start") и преобразовать это в число Because you can't turn "start" into one, Python is making a mistake. Also try instead of your code, write this one:@dp.message_handler(commands=['start']) async def start(message: types.Message): await bot.send_message(message.chat.id, 'Напишите число, от 1 до которого я загадаю число:') print(message.text, type(message.text)) If that's what makes you, for example:1 intIf there may be a problem in the other part of the code, then if there are:start strIf there's a team in the previous report, you should read the messages that come into the bonnet. startIf there's a mistake, we need to write this message to the user so he can send again. If there are no errors, generate a random number and check all user messages on this number until he knows
T

saving list of dict in file
Software Programming • python python 3.x json list dic languagetionary • • tahishae

2

0
Votes

2
Posts

0
Views

A

Well, a possible solution is to use garbage collector to catch the dictionary of each instance of your class, add these dictionaries in a list and save the list with the pickle. See:import gc import pickle class Conta: def init(self, num_conta, item_num, item_desc, item_price): self.num_conta = num_conta self.item_num = item_num self.item_desc = item_desc self.item_price = item_price conta1 = Conta(1,2,3,4) conta2 = Conta(3,5,7,9) #criando uma lista de dicionários das instâncias da classe Conta lista_instancia =[] for obj in gc.get_objects(): if isinstance(obj, Conta): lista_instancia.append(obj.dict) print(lista_instancia) Output:[{'num_conta': 1, 'item_num': 2, 'item_desc': 3, 'item_price': 4}, {'num_conta': 3, 'item_num': 5, 'item_desc': 7, 'item_price': 9}] Saving:f = open('minha_lista.pkl', 'wb') pickle.dump(lista_instancia, f) f.close()
D

A multi-level menu of bot telegrams (inline - callback = answer) on python?
Software Programming • python python 3.x telegram bot • • derk

2

0
Votes

2
Posts

0
Views

R

Try to remove four ruptures (or one tabulation symbol) before bot.send_message(call.message.chat.id, answer)♪Because if you don't, that line will be the last elif-block.
N

Meeting the challenge. Dictionary &quot; named tuples
Software Programming • python • • Nykeriab

2

0
Votes

2
Posts

0
Views

Since you haven't given the desired result, I'm not sure that my decision suits you, that's my option:from collections import Counter from collections import namedtuple import sys def data(): with open(sys.argv[1], 'r') as file: return file.read().strip() def first(arg): # Подсчет слов return f'Результат первой функции {len(arg.split())}\n' def two(arg): # Слово и его кол-во return f'Результат второй функции {Counter(arg.split())}\n' def three(arg): # Слово и его кол-во в виде namedtuple name = namedtuple('NAME', ['word', 'count']) return f'Результат третьей функции {tuple(name(word, arg.count(word)) for word in set(arg.split()))}' Use: In launching the crypt, give 1 parameter in cmd the way to the file, and then:print(first(data())) print(two(data())) print(three(data())) The result of the data you gave on the question:Результат первой функции 37 Результат второй функции Counter({'and': 6, 'cloud': 4, 'in': 3, 'Python,': 3, 'document': 3, 'for': 3, 'Design,': 2, 'develop,': 2, 'test': 2, 'applications': 2, 'API': 2, 'services.': 2, 'maintain': 1, 'design,': 1, 'services': 1}) Результат третьей функции (NAME(word='API', count=2), NAME(word='cloud', count=4), NAME(word='document', count=3), NAME(word='Python,', count=3), NAME(word='for', count=3), NAME(word='services.', count=2), NAME(word='test', count=2), NAME(word='in', count=5), NAME(word='Design,', count=2), NAME(word='develop,', count=2), NAME(word='applications', count=2), NAME(word='services', count=3), NAME(word='and', count=6), NAME(word='design,', count=1), NAME(word='maintain', count=1))
C

Solve duplicate items in dict in Python 3
Software Programming • python list dic languagetionary • • courtlanda

2

0
Votes

2
Posts

0
Views

E

You didn't say the most important thing: what to do when you find duplicate keys! A dictionary has to have distinct keys - but nothing prevents each value from being itself another tuple, or even another dictionary, with various other data inside.So, if you want each key in the dictionary to be a single list, with the values of your concatenate list, you can make a me consizo using the method setdefault of the dictionaries: this method returns the value associated with a key, if it already exists - if it does not exist, it associates the second parameter passed as value for that key, and returns the same. That is, meudict.setdefault("chave", []) returns the value that is in meudict["chave"], or put an empty list in meudict["chave"] and return this list - which we can then manipulate with append or extend.Then to concatenate your values in large lists in case of repeated keys:meu_dict = {} for chave, valor in lista_tupla: meu_dict.set_default(chave, []).extend(valor) Now, if you don't want to concatenate the content of the dioncars, but make each dictionary value a list whose items are the other lists of values in your original sequencing (this way you preserve the independence of these sequences), it's just to change the last line above by: meu_dict.set_default(chave, []).append(valor)
O

What should be Query to get a result of tuples in which the value of a column is 'x'?
Software Programming • php mysql sql • • obi

2

0
Votes

2
Posts

0
Views

B

You have this example below.Understand that in printf to compare it uses $row["id"], i.e. as array index it uses the field name you return. In your case if($row['valor de categoria_inscricao'] == $x) Severe that ... if you don't record that. http://www.php.net/manual/pt_BR/function.mysql-fetch-array.php <?php mysql_connect("localhost", "mysql_user", "mysql_password") or die("Não foi possível conectar: " . mysql_error()); mysql_select_db("mydb"); $result = mysql_query("SELECT id, name FROM mytable"); while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { printf("ID: %s Name: %s", $row["id"], $row["name"]); } mysql_free_result($result); ?>
O

NameError error: name 'value' is not defined
Software Programming • python classes op • • obi

2

0
Votes

2
Posts

0
Views

R

import random class Speed: def lte(self, number: int): value = 0 if number == 1: value = random.randint(0,40) if number == 2: value = random.randint(0,100) if number == 3: value = random.randint(0,250) self.value = value my_lte_1 = Speed() my_lte_2.lte(2) print(my_lte_1.value) my_lte_2 = Sensors() my_lte_2.lte(2) print(my_lte_2.value) my_lte_3 = Sensors() my_lte_3.lte(3) print(my_lte_3.value)
C

How to get the payload of the request POST
Software Programming • php python curl request response • • Cleofas

2

0
Votes

2
Posts

0
Views

B

For php:$postdata = json_decode(file_get_contents("php://input"), true); echo $postdata["csrf_token"]; T. on request type of content application/jsonaccess to raw data of the request is obtained through reading from the flow php://input♪ Further, it remains only to convert data from json-format into an associated area.
Several languages on Django
Software Programming • python django • • briley

2

0
Votes

2
Posts

0
Views

I'll answer my own question. instead from django.utils.translation import ugettext as _wrote a letter. from django.utils.translation import gettext_lazy as _And it's working, maybe it' interesting.
R

Access the elements of a tuple and list on python using FastAPI
Software Programming • python python 3.x list python requests tuplas • • Raziyah00

2

0
Votes

2
Posts

0
Views

A

following your example you can access as follows:x[0]['name']
Y

User-Agent change with QWebEngineProfile on QWebEngineView. How's that?
Software Programming • python pyqt5 • • yajahira

2

0
Votes

2
Posts

0
Views

E

Use that code:self.useragent = QWebEngineProfile(self.browser) self.useragent.defaultProfile().setHttpUserAgent('Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36')
A

python: How do you put the meaning in a two-storey mass?
Software Programming • python • • Anderson

2

0
Votes

2
Posts

0
Views

C

You've got a mistake to go outside the list range.In Python, in order to change the value of the index element, it is necessary to add this element to the list first.It'll work like this:for i, snt in enumerate(text_list): matrix.append([]) # append new sublist to the list for j, wrd in enumerate(dict): matrix[i].append(snt.count(wrd)) # append the value to the sublist On every external cycle we create an empty subscription and add it to the list. The internal cycle adds an element to the subscription.After adding the elements, they may be referred to indexes.A functions print I don't know what the indexes are.
R

Piton and tkinter classes
Software Programming • python python 3.x tkinter • • Raziyah00

2

0
Votes

2
Posts

0
Views

K

Comments on your codenew_ball #Рисую его на холсте No, actually, this line doesn't do anything at all, and the balloon is already painted in setting up the object. Ballwhen in the method __init__ method canv.create_oval♪canv.delete(new_ball) #Хочу удалить с холста но не удаляется Of course not, because the lobby knows nothing about your class. Ball♪ Method delete The holding facility shall be located at the inlet with the identification of the removed object (e.g., that the method has returned create_oval) or the current of the removed objects (the text tag can be linked to a number of objects at the canvass and work with them as one object).new_ball #Хочу нарисовать еще один с новой х но ничего #не происходит The same thing in the first case, this line doesn't do anything.This is a working example:from tkinter import * from random import randrange as rnd, choice import time class Ball: # Шарик со случайными координатами и цветом в пределах канваса def init(self, canv): self.canv = canv self.x = rnd(100, 700) self.y = rnd(100, 500) self.r = rnd(30, 50) colors = ['red','orange','yellow','green','blue'] self.id = canv.create_oval(self.x-self.r, self.y-self.r, self.x+self.r, self.y+self.r, fill=choice(colors), width=1) def delete(self): self.canv.delete(self.id) def move(self): self.canv.coords(self.id, self.x-self.r, self.y-self.r, self.x+self.r, self.y+self.r) def main(): root = Tk() root.geometry('800x600') canv = Canvas(root,bg='white') canv.pack(fill=BOTH,expand=1) # Вместо использования глобальной переменной передаем холст при создании объекта new_ball = Ball(canv) print('x=',new_ball.x, 'y=',new_ball.y, 'r=',new_ball.r) root.update() # Обновляем окно, чтобы изменения (только что созданный шарик) отобразились до паузы time.sleep(1) new_ball.x = 100 print('x=', new_ball.x) new_ball.move() # Переместить шарик по координатам, которые в нем хранятся root.update() # Обновляем окно, чтобы изменения отобразились до паузы time.sleep(1) new_ball.delete() # Удаляем шарик с помощью его метода # После удаления в данной реализации класса Ball заново отобразить его не получится root.mainloop() if name == 'main': main() I used it. time.sleepto make changes visible to the eye (without sleep and root.update We'd only see the final state after we removed the balloon.Actually, time.sleep It's best not to use the window applications, as the window is still running. Instead, better plan action (functions) through a method root.after(delay, func)where delay - delay, func - a function to be performed after a delay.

tuple to dict

Suggested Topics

Group list of tuples in dictionary optimally on Python Software Programming • python optimization group by itertools • • kalena

How can we find the words that are given in the second set in the first set? Software Programming • python python 3.x • • Anderson

How to make a restriction by variable in random.randint() Software Programming • python emergency numbers aiogram • • zymir

saving list of dict in file Software Programming • python python 3.x json list dic languagetionary • • tahishae

A multi-level menu of bot telegrams (inline - callback = answer) on python? Software Programming • python python 3.x telegram bot • • derk

Meeting the challenge. Dictionary &amp;quot; named tuples Software Programming • python • • Nykeriab

Solve duplicate items in dict in Python 3 Software Programming • python list dic languagetionary • • courtlanda

What should be Query to get a result of tuples in which the value of a column is 'x'? Software Programming • php mysql sql • • obi

NameError error: name 'value' is not defined Software Programming • python classes op • • obi

How to get the payload of the request POST Software Programming • php python curl request response • • Cleofas

Several languages on Django Software Programming • python django • • briley

Access the elements of a tuple and list on python using FastAPI Software Programming • python python 3.x list python requests tuplas • • Raziyah00

User-Agent change with QWebEngineProfile on QWebEngineView. How's that? Software Programming • python pyqt5 • • yajahira

python: How do you put the meaning in a two-storey mass? Software Programming • python • • Anderson

Piton and tkinter classes Software Programming • python python 3.x tkinter • • Raziyah00

Group list of tuples in dictionary optimally on Python
Software Programming • python optimization group by itertools • • kalena

How can we find the words that are given in the second set in the first set?
Software Programming • python python 3.x • • Anderson

How to make a restriction by variable in random.randint()
Software Programming • python emergency numbers aiogram • • zymir

saving list of dict in file
Software Programming • python python 3.x json list dic languagetionary • • tahishae

A multi-level menu of bot telegrams (inline - callback = answer) on python?
Software Programming • python python 3.x telegram bot • • derk

Meeting the challenge. Dictionary " named tuples
Software Programming • python • • Nykeriab

Solve duplicate items in dict in Python 3
Software Programming • python list dic languagetionary • • courtlanda

What should be Query to get a result of tuples in which the value of a column is 'x'?
Software Programming • php mysql sql • • obi

NameError error: name 'value' is not defined
Software Programming • python classes op • • obi

How to get the payload of the request POST
Software Programming • php python curl request response • • Cleofas

Several languages on Django
Software Programming • python django • • briley

Access the elements of a tuple and list on python using FastAPI
Software Programming • python python 3.x list python requests tuplas • • Raziyah00

User-Agent change with QWebEngineProfile on QWebEngineView. How's that?
Software Programming • python pyqt5 • • yajahira

python: How do you put the meaning in a two-storey mass?
Software Programming • python • • Anderson

Piton and tkinter classes
Software Programming • python python 3.x tkinter • • Raziyah00