投稿時間:2023-01-07 16:21:17 RSSフィード2023-01-07 16:00 分まとめ(23件)

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python	Pythonタグが付けられた新着投稿 - Qiita	Pythonを改めてちゃんと学ぶメモ #6	https://qiita.com/hideh_hash_845/items/b46d2d82287f10bfb7c4	都度	2023-01-07 15:59:33
python	Pythonタグが付けられた新着投稿 - Qiita	文字列のパスワード強度を数値化する	https://qiita.com/ikuo0/items/cc5c85c4d85b4b07fbb6	compliance	2023-01-07 15:49:33
js	JavaScriptタグが付けられた新着投稿 - Qiita	詐欺あみだくじを作ろう！！	https://qiita.com/kakkun3/items/0f405879915410340ee3	運勢	2023-01-07 15:48:16
js	JavaScriptタグが付けられた新着投稿 - Qiita	【JavaScript】ロト6とロト7の当選データの傾向(フォーム部品の値取得,値設定～ファイル読み込みと出力)	https://qiita.com/xmorning777/items/d713d1f0fe901c98bb52	javapython	2023-01-07 15:07:57
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	Linuxmint(ubuntu)でIKEv2方式のVPNに接続する	https://qiita.com/blushpencil/items/51658f7a87a3ebb2f378	corei	2023-01-07 15:43:35
AWS	AWSタグが付けられた新着投稿 - Qiita	Amplifyで設定するAppSyncの証明書期限の更新方法	https://qiita.com/ayumu__/items/9f9d7ab85579e7888510	amplify	2023-01-07 15:58:27
AWS	AWSタグが付けられた新着投稿 - Qiita	Cloudflare R2で、ニアリアルタイムなAPIを劇的に安くする	https://qiita.com/ShotaOki/items/821ab449fbb1ceeb025a	apigateway	2023-01-07 15:34:43
AWS	AWSタグが付けられた新着投稿 - Qiita	サービスロールとは	https://qiita.com/Syusuke/items/b160839240a6cbb1a2bd	新規作成	2023-01-07 15:04:45
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails7 で deviseが何かと変	https://qiita.com/YumaInaura/items/8ef69ff67574c2ef1df7	devise	2023-01-07 15:13:34
海外TECH	DEV Community	Take Your Python Skills to the Next Level with Built-in Data Structures	https://dev.to/anurag629/take-your-python-skills-to-the-next-level-with-built-in-data-structures-5ec7	Take Your Python Skills to the Next Level with Built in Data Structures Day of Days Data Science Bootcamp from noob to expert GitHub link Complete Data Science Bootcamp Main Post Complete Data Science Bootcamp Recap Day Yesterday we have studied inm detail about basics of python What we will study in this In this lesson we will delve deeper into the various inbuilt data structures in Python and explore how they can be used in programs through detailed examples and exercises We will cover data structures such as lists tuples sets and dictionaries and discuss their unique characteristics and uses By the end of this lesson you will have a solid understanding of these data structures and be able to confidently utilize them in your Python programs Python has several inbuilt data data structure or data types including Integer int used to represent whole numbersFloat used to represent floating point valuesComplex used to represent complex numbersBoolean bool used to represent boolean values True or False String str used to represent sequences of charactersList used to represent ordered sequences of elementsTuple used to represent ordered sequences of elements that cannot be modifiedSet used to represent unordered collections of unique elementsFrozen set used to represent unordered collections of unique elements that cannot be modifiedDictionary used to represent key value pairsNone used to represent the absence of a value On day we briefly discussed the basics of these topics but now we will delve into them in more detail on List Tuple Set and Dictionary List Basics A list is a collection of items that are ordered and changeable Lists are written with square brackets and the items are separated by commas my list this is a list with four integersmy list apple banana cherry this is a list with three stringsmy list apple True this is a list with four items of different data typesprint my list print my list print my list apple banana cherry apple True There are several ways to create or declare a list in Python Using square brackets You can create a list by enclosing a comma separated list of items in square brackets my list this is a list of integersmy list apple banana cherry this is a list of stringsmy list apple True this is a list of items with different data typesprint my list print my list print my list apple banana cherry apple True Using the list function You can create a list by passing a sequence to the list function my list list range creates a list of integers from to my list list abcdefg creates a list of characters from the stringprint my list print my list Using list comprehension You can create a list using a single line of code with list comprehension my list x for x in range creates a list of integers from to my list x for x in abcdefg creates a list of characters from the stringprint my list print my list Using the operator You can create a list by duplicating an existing list using the operator my list creates a list with three copies of my list creates a list with ten copies of the integer my list hello creates a list with five copies of the string hello print my list print my list print my list hello hello hello hello hello Accessing Items You can access the items in a list using their index The index starts at for the first item and goes up by for each subsequent item my list print my list prints the first item in the list print my list prints the third item in the list Changing Items You can change the value of an item in a list by assigning a new value to its index my list my list changes the value of the first item in the list to print my list prints Adding Items You can add items to a list using the append method or the insert method The append method adds the item to the end of the list my list my list append adds to the end of the listprint my list prints The insert method adds the item at the specified index my list my list insert adds at index between and print my list prints Removing Items You can remove items from a list using the remove method or the pop method The remove method removes the first occurrence of the item my list my list remove removes the first occurrence of print my list prints The pop method removes the item at the specified index and returns the item my list item my list pop removes the item at index and assigns it to the variable item print my list prints print item prints Finding the Length of a List You can find the length of a list using the len function my list print len my list prints Advanced Here are some more advanced features of lists in Python Slicing You can slice a list to access a portion of it by specifying a range of indexes my list access the first three items in the listprint my list prints access the middle four items in the listprint my list prints access the last three items in the listprint my list prints access all items in the listprint my list prints Sorting You can sort a list using the sorted function or the sort method The sorted function returns a new sorted list while the sort my list sort the list using the sorted functionsorted list sorted my list print sorted list prints print my list prints sort the list using the sort methodmy list sort print my list prints Reverse You can reverse a list using the reverse method my list reverse the list using the reverse methodmy list reverse print my list prints Reverse using slicingmy list reverse using slicingprint my list List Comprehension List comprehension is a concise way to create a list using a single line of code create a list of squares of the numbers to squares x for x in range print squares prints create a list of even numbers between and even numbers x for x in range if x print even numbers prints Loops You can loop through the items in a list using a for loop loop through the items in a list and print each onemy list for item in my list print item loop through the items in a list and print their index and valuemy list apple banana cherry for i item in enumerate my list print i item output apple banana cherry apple banana cherry Enumerate The enumerate function returns a tuple with the index and value of each item in the list my list apple banana cherry for i item in enumerate my list print i item apple banana cherry Filtering You can filter a list to only include items that meet certain criteria using a list comprehension with a condition my list filter the list to only include even numberseven numbers x for x in my list if x print even numbers prints filter the list to only include numbers greater than greater than five x for x in my list if x gt print greater than five prints Mapping You can apply a function to each item in a list using a list comprehension my list multiply each item in the list by doubled list x for x in my list print doubled list prints convert each item in the list to a stringstring list str x for x in my list print string list prints Max and Min You can find the maximum and minimum value in a list using the max and min functions my list find the maximum value in the listmax value max my list print max value prints find the minimum value in the listmin value min my list print min value prints Sum You can find the sum of all the values in a list using the sum function my list find the sum of all the values in the listtotal sum my list print total prints Multidimensional Lists Lists can also contain other lists creating a multidimensional list create a D list with rows and columnsmy list access the first item in the first rowprint my list prints access the second item in the second rowprint my list prints access the fourth item in the third rowprint my list prints Conclusion Lists are a powerful and versatile data structure in Python They allow you to store and manipulate a collection of items in an ordered manner You can access change add remove and manipulate items in a list using various methods and functions You can also use list comprehension loops and other advanced techniques to work with lists more efficiently TupleA tuple is an immutable sequence type in Python It is similar to a list in that it can contain multiple values but unlike a list the values in a tuple cannot be modified once created This makes tuples more efficient for storing and manipulating data that does not need to be modified Here is an example of how to create a tuplemy tuple print my tuple You can also create a tuple with a single element by including a comma after the element my tuple print my tuple Without the comma Python will treat the parentheses as parentheses and not as the syntax for a tuple my tuple print my tuple You can access the elements of a tuple using indexing just like you would with a list For example my tuple print my tuple print my tuple print my tuple You can also use slicing to access a range of elements in a tuple my tuple print my tuple Tuples also support all of the common sequence operations such as concatenation repetition and membership testing my tuple print my tuple Output print my tuple Output print in my tuple Output Trueprint in my tuple Output False TrueFalseTuples are often used to store related pieces of data such as the name and age of a person person John name age personprint name Output John print age Output John SetsA set is a collection of unique elements in Python It is similar to a list or tuple but it is unordered and does not allow duplicate values Here is an example of how to create a set in Python create an empty setmy set set print my set create a set with valuesmy set print my set create a set from a listmy list my set set my list print my set set Sets can be modified using various methods such as add update remove and discard create a set with valuesmy set print my set add an element to the setmy set add print my set add multiple elements to the setmy set update print my set remove an element from the setmy set remove print my set remove an element from the set if it exists otherwise do nothingmy set discard print my set clear all elements from the setmy set clear print my set set Sets can also be used to perform set operations such as union intersection and difference set set find the union of two setsunion set union set print union find the intersection of two setsintersection set intersection set print intersection find the difference between two setsdifference set difference set print difference Overall sets are useful for storing and manipulating unique values in Python They are especially useful for performing set operations such as finding the intersection or difference between two sets Here is an example of how to use sets to find the common elements between two lists list list convert the lists to setsset set list set set list find the intersection of the setscommon set intersection set convert the intersection back to a listcommon list list common print common list Sets are also useful for removing duplicates from a list Here is an example of how to do this my list convert the list to a set to remove duplicatesmy set set my list convert the set back to a listunique list list my set print unique list ConclusionSets are a powerful data structure in Python and have many uses Some additional things to know about sets include Sets are unordered meaning that the elements are not stored in a specific order This means that you cannot access elements in a set by index like you can with a list or tuple Sets are mutable meaning that you can add or remove elements from the set after it has been created Sets are not indexed meaning that you cannot reference elements in a set using an index like you can with a list or tuple Sets are not sliceable meaning that you cannot use the slice operator to extract a portion of a set like you can with a list or tuple Sets are not subscriptable meaning that you cannot use the subscript operator to access elements in a set like you can with a list or tuple Sets do not support concatenation meaning that you cannot use the operator to combine two sets like you can with lists or tuples Sets do not support repetition meaning that you cannot use the operator to repeat a set like you can with a list or tuple As you can see sets have some limitations compared to other data structures in Python However they are still a useful tool to have in your toolkit especially when working with unique values or performing set operations DictionaryA dictionary is a collection of key value pairs in Python It is similar to a list or tuple but instead of using an index to access elements you use a key Here is an example of how to create a dictionary in Python create an empty dictionarymy dict create a dictionary with valuesmy dict key value key value print my dict create a dictionary from a list of tuplesmy list key value key value my dict dict my list print my dict key value key value key value key value Dictionaries can be modified using various methods such as update setdefault and pop create a dictionary with valuesmy dict key value key value print my dict add a key value pair to the dictionarymy dict key value print my dict update multiple key value pairs in the dictionarymy dict update key value key value print my dict set a default value for a key if it does not existmy dict setdefault key default value print my dict remove a key value pair from the dictionarymy dict pop key print my dict key value key value key value key value key value key value key value key value key value key value key value key value key value key value key value key default value key value key value key value key value key default value Dictionaries can also be used to perform dictionary operations such as merging and filtering dict key value key value dict key value key value merge two dictionariesmerged dict dict dict key value key value key value key value print merged dict filter a dictionary based on a conditionfiltered dict k v for k v in merged dict items if v value key value print filtered dict key value key value key value key value key value Here is an example of how to use a dictionary to store and retrieve student grades student grades John math english Mary math english Bob math english print student grades retrieve John s math gradejohn math grade student grades John math print john math grade update Mary s english gradestudent grades Mary english print student grades John math english Mary math english Bob math english John math english Mary math english Bob math english ConclusionDictionaries are a powerful data structure in Python and have many uses Some additional things to know about dictionaries include Dictionaries are mutable meaning that you can add or remove key value pairs from the dictionary after it has been created Dictionaries are unordered meaning that the key value pairs are not stored in a specific order Dictionaries do not support slicing meaning that you cannot use the slice operator to extract a portion of a dictionary like you can with a list or tuple Dictionaries do not support concatenation meaning that you cannot use the operator to combine two dictionaries like you can with lists or tuples Dictionaries do not support repetition meaning that you cannot use the operator to repeat a dictionary like you can with a list or tuple Function in PythonIn Python a function is a block of code that performs a specific task and can be called by other code Functions can take arguments also known as parameters and return a result Here is an example of a simple function in Python def greet name print Hello name greet John prints Hello John Hello JohnIn this example the function greet takes one argument name and prints a greeting with it The function is called with the argument John so it prints Hello John Functions can also return a value instead of printing it For example def add x y return x yresult add stores in resultprint result prints In this example the function add takes two arguments x and y and returns their sum When the function is called with the arguments and it returns which is then stored in the variable result and printed Functions can have default values for their arguments For example def greet name greeting Hello print greeting name greet John prints Hello John greet John Hi prints Hi John Hello JohnHi JohnIn this example the function greet has a default value of Hello for the greeting argument so if no value is provided for greeting when the function is called it will use Hello as the default Functions can take an arbitrary number of arguments using the args syntax For example def sum all args result for num in args result num return resultprint sum all prints print sum all prints In this example the function sum all takes an arbitrary number of arguments and returns their sum The arguments are treated as a tuple so you can access them like any other tuple Functions can also take an arbitrary number of keyword arguments using the kwargs syntax For example def print keyword args kwargs for key value in kwargs items print key value print keyword args name John age city New York name Johnage city New YorkIn this example the function print keyword args takes an arbitrary number of keyword arguments and prints them The keyword arguments are treated as a dictionary so you can access them like any other dictionary Functions can return multiple values using tuples For example def min max numbers return min numbers max numbers min val max val min max print min val prints print max val prints In this example the function min max returns a tuple containing the minimum and maximum values from the input list The tuple is then unpacked into the variables min val and max val which are printed Exercise Question you will find in the exercise notebook of Day on GitHub If you liked it then	2023-01-07 06:34:59
海外ニュース	Japan Times latest articles	Bomb threat prompts plane’s emergency landing at Chubu Airport	https://www.japantimes.co.jp/news/2023/01/07/national/jetstar-airlines-chubu-airport-emergency-landing/	Bomb threat prompts plane s emergency landing at Chubu AirportInvestigators said a phone call from Germany had been received around a m with a man claiming to have put kilograms of plastic explosives	2023-01-07 15:32:28
海外ニュース	Japan Times latest articles	After bitter intraparty dispute, McCarthy named U.S. House speaker	https://www.japantimes.co.jp/news/2023/01/07/world/politics-diplomacy-world/kevin-mccarthy-house-leadership-14th-loss/	After bitter intraparty dispute McCarthy named U S House speakerThe California Republican s victory after a week of repeated votes has highlighted divisions within the party and raised questions about their ability to govern	2023-01-07 15:04:27
ニュース	BBC News - Home	Kevin McCarthy elected US House Speaker amid angry scenes	https://www.bbc.co.uk/news/world-us-canada-64193932?at_medium=RSS&at_campaign=KARANGA	republican	2023-01-07 06:37:28
ニュース	BBC News - Home	Train drivers offered pay rise in bid to end strikes	https://www.bbc.co.uk/news/business-64191654?at_medium=RSS&at_campaign=KARANGA	drivers	2023-01-07 06:47:09
ニュース	BBC News - Home	The Papers: 'Fury at Harry's Taliban claims' and 'Chinese spy fears'	https://www.bbc.co.uk/news/blogs-the-papers-64194347?at_medium=RSS&at_campaign=KARANGA	spare	2023-01-07 06:12:52
ビジネス	不景気.com	熊本「植木カントリークラブ」運営会社が破産、負債12億円 - 不景気com	https://www.fukeiki.com/2023/01/ueki-cc.html	有限会社	2023-01-07 06:25:23
北海道	北海道新聞	北海道内５３５２人感染、１６人死亡　新型コロナ	https://www.hokkaido-np.co.jp/article/784513/	北海道内	2023-01-07 15:25:08
北海道	北海道新聞	後志管内１８４人感染　小樽市は９６人　新型コロナ	https://www.hokkaido-np.co.jp/article/784515/	新型コロナウイルス	2023-01-07 15:20:00
北海道	北海道新聞	上川管内４５４人感染　新型コロナ	https://www.hokkaido-np.co.jp/article/784514/	上川管内	2023-01-07 15:19:00
北海道	北海道新聞	リケジョ育成、日米連携へ　首脳会談でジェンダー協議	https://www.hokkaido-np.co.jp/article/784511/	女性問題	2023-01-07 15:11:00
北海道	北海道新聞	２０歳の抱負叫びバンジー、茨城　高さ１００ｍ、１０人が挑戦	https://www.hokkaido-np.co.jp/article/784510/	茨城県常陸太田市	2023-01-07 15:08:00
ビジネス	東洋経済オンライン	【後編】大河の主役｢徳川家康｣先祖の波瀾万丈 家康の祖父｢松平清康｣までの一族の歴史を辿る | 歴史 | 東洋経済オンライン	https://toyokeizai.net/articles/-/641391?utm_source=rss&utm_medium=http&utm_campaign=link_back	大河ドラマ	2023-01-07 15:01:00
海外TECH	reddit	Megathread: The US House of Representatives Selects Kevin McCarthy as Speaker	https://www.reddit.com/r/politics/comments/105hnam/megathread_the_us_house_of_representatives/	Megathread The US House of Representatives Selects Kevin McCarthy as SpeakerOn the th day of voting the US House of Representatives selected Kevin McCarthy the Republican from California s th District and the House minority leader from to to as its Speaker The th and deciding vote broke down largely along partisan lines All Democrats voted for Representative Hakeem Jeffries of New York s th District as they had every previous round with the exception of the th when Rep Trone Maryland was out for a previously scheduled surgery The House will proceed later with a vote on a rules package that was the subject of intense negotiations between Kevin McCarthy and the twenty or so Freedom Caucus members who had stymied McCarthy s bid for office According to this recommended AP article published just before the th ballot this would give even one House member the power to effectively force a new Speaker vote Additionally Other wins for the holdouts are more obscure and include provisions in the proposed deal to expand the number of seats available on the House Rules Committee to mandate hours for bills to be posted before votes and to promise to try for a constitutional amendment that would impose federal limits on the number of terms a person could serve in the House and Senate Submissions that may interest you SUBMISSION DOMAIN Kevin McCarthy elected House speaker after votes and days of negotiations npr org How Kevin McCarthy finally became Speaker of the House vox com McCarthy elected House speaker following high drama floor fight washingtonexaminer com Republican Kevin McCarthy elected US House speaker aljazeera com Kevin McCarthy wins House speaker bid after four days and votes theguardian com Kevin McCarthy Elected House Speaker Finally on th Vote rollingstone com After Tries and Most of His Dignity Gone Kevin McCarthy Becomes House Speaker newrepublic com Kevin McCarthy elected Republican U S House speaker but at a cost reuters com Kevin McCarthy elected speaker of the House ending days of Republican chaos and division in Washington businessinsider com Kevin McCarthy elected House speaker on th round after fight nearly breaks out independent co uk McCarthy speaker battle shows a party still incoherent ungovernable washingtonpost com Chaotic scene unfolds as McCarthy fails on th ballot for speaker pbs org House to hold th ballot for speaker after McCarthy short by one vote in th vote marketwatch com McCarthy loses th speaker vote after days of negotiations and failed votes cnn com Kevin McCarthy Loses th Vote for Speaker in Dramatic Defeat rollingstone com McCarthy fails his th round to become speaker by vote foxnews com House Speaker vote Drama on House floor as Gaetz vote sinks McCarthy Speakership bid thehill com The deal that may make Kevin McCarthy speaker explained vox com US House AdjournsーAgainーAfter Failed Votes to Select a Speaker quot If you think House Republicans chaos will end with electing a speaker you aren t paying attention quot said Rep Pramila Jayapal quot This is who they are Chaotic selfish and incapable of leadership quot commondreams org The Idiot Dream of the Unity Speaker Will Never Die McCarthy s epic struggle briefly gave the punditocracy a chance to indulge in one of their most persistentーand persistently stupidーfantasias newrepublic com Kevin McCarthy says he has votes to become US House Speaker bbc com House adjourns until p m as McCarthy nears the votes needed to become speaker nbcnews com Republicans failed to elect House speaker in votes this week What do Indiana reps think indystar com Why Does Kevin McCarthy Even Want to Be Speaker at This Point thedailybeast com Kevin McCarthy Could Be Our Nation s First SINO Speaker In Name Only esquire com The Never Kevin Chaos Is Tearing Fox News Apart The never ending House speaker vote has further divided Republicans but it has also exposed a giant rift within Fox News with Tucker openly calling one colleague a “moron thedailybeast com submitted by u PoliticsModeratorBot to r politics link comments	2023-01-07 06:08:41