投稿時間:2021-12-05 19:20:42 RSSフィード2021-12-05 19:00 分まとめ(22件)

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python	Pythonタグが付けられた新着投稿 - Qiita	RDKitのフィンガープリントをPandasのデータフレームに取り込んで使い倒そう②	https://qiita.com/kimisyo/items/d82aa25dbf1d5cff10f0	従って計算しながらビット名をキーとして保持し、後から全化合物に対し存在しないビットの値をで補完する処理が必要となる。	2021-12-05 18:34:06
python	Pythonタグが付けられた新着投稿 - Qiita	【環境構築】macOS Big Sur 11.6.1 + Dockerのpython containerにpandasをinstall	https://qiita.com/cocoapuff/items/7d4b323d015cf5317a89	ということで、今回はpandsをinstall前回までの記事【環境構築】macOSBigSurにDockerをInstall【環境構築】macOSBigSurDockerでpythonpandsをインストールpythonのcontainerは動いている前提自分macにはpipをinstallしていないので、間違ってMacのterminalで実行しても問題ないけど、cpntainer側のCLIで実行するよう気をつけるpipinstallpandasこれだけです。	2021-12-05 18:28:22
python	Pythonタグが付けられた新着投稿 - Qiita	【Python】ネストされた辞書型配列の要素を検索・取得する方法	https://qiita.com/kajuta/items/06f111bda06864939f84	※既にあるのかも知れませんが、ググっても出てこなかったのであくまで教材・課題のつもりで※ご指摘、ご指南いただけるとありがたいです環境macOSMontereyPythonVisualStudioCodeコード関数内部で関数自身を呼び回帰関数、ネストが可変でも対応できるように実装。	2021-12-05 18:20:59
js	JavaScriptタグが付けられた新着投稿 - Qiita	【JavaScript】複数のaタグリンクを無効化する方法	https://qiita.com/ikura_22/items/3cc5cb19144d9339eccd	夏は時間程度寒いのが好きではないので早く月にならないかと思っております余談はさておき、仕事でJavaScriptを触る機会がありましてオンライン画面のリンクを無効化する処理を書きました。	2021-12-05 18:37:40
js	JavaScriptタグが付けられた新着投稿 - Qiita	JavaScriptで簡易な定数のグルーピング（ちょっとしたリファクタリングの話）	https://qiita.com/take8/items/fd9be242553cf6662013	※Javaとかならenumで解決な気がしますが、JavaScriptにはenumがないです。	2021-12-05 18:05:46
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	pipをアップグレードしようとするとエラー表示される	https://teratail.com/questions/372371?rss=all	pipをアップグレードしようとするとエラー表示される前提・実現したいこと形態素解析を行うためにMeCabをインストールし、Cygwinを使いPython上にmecabpythonの導入を行おうとしましたが、pipのバージョンが古いとエラーが出たので、quotpipnbspinstallnbspupgradenbsppipquotと入力しアップグレードを試みたところエラーが表示されました。	2021-12-05 18:49:56
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Android Studioでコードを保存前の状態に戻す　Gradle Project sync failed.	https://teratail.com/questions/372370?rss=all	AndroidStudioでコードを保存前の状態に戻すGradleProjectsyncfailedAndroidnbspStudioでアプリを開発していたところ、このようなエラーが表示されアプリを実行できなくなってしまいました・・・AndroidnbspStudioを再起動すると「GradlenbspfilesnbsphavenbspchangednbspsincenbsplastnbspprojectnbspsyncAnbspprojectnbspsyncnbspmaynbspbenbspnecessarynbspfornbspthenbspIDEnbsptonbspworknbspproperly」と出た後、こちらの画像の「GradlenbspProjectnbspsyncnbspfailed」と続きます。	2021-12-05 18:32:18
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	List<Point2f>の使い方と要素の応用について解決したい。	https://teratail.com/questions/372369?rss=all	ListltPointfgtの使い方と要素の応用について解決したい。	2021-12-05 18:30:49
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	python tkinter exe化　開かない	https://teratail.com/questions/372368?rss=all	エラー部分を見てみると以下のことが書かれていました。	2021-12-05 18:22:14
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Vueにて作成したプロジェクトの削除について	https://teratail.com/questions/372367?rss=all	nbspcreatenbspdemoproject	2021-12-05 18:14:00
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	option要素にtransformが効かない	https://teratail.com/questions/372366?rss=all		2021-12-05 18:11:09
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	railsのcallの使い方	https://teratail.com/questions/372365?rss=all		2021-12-05 18:09:54
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	UbuntuのNetwork Managerでメトリック値を変更する	https://qiita.com/funatsufumiya/items/9b25a1ccf4d4d7266dd6	UbuntuのNetworkManagerでメトリック値を変更するネットワークのメトリック値接続優先度、低いほど優先を適切に設定することで、複数のネットワークに同時接続しても安定して使用できるようになる例えばWiFiを常に有線LANより優先するなど。	2021-12-05 18:51:54
Docker	dockerタグが付けられた新着投稿 - Qiita	【環境構築】macOS Big Sur 11.6.1 + Dockerのpython containerにpandasをinstall	https://qiita.com/cocoapuff/items/7d4b323d015cf5317a89	ということで、今回はpandsをinstall前回までの記事【環境構築】macOSBigSurにDockerをInstall【環境構築】macOSBigSurDockerでpythonpandsをインストールpythonのcontainerは動いている前提自分macにはpipをinstallしていないので、間違ってMacのterminalで実行しても問題ないけど、cpntainer側のCLIで実行するよう気をつけるpipinstallpandasこれだけです。	2021-12-05 18:28:22
海外TECH	DEV Community	Building A TCP Bridger Server in Go - Part 1	https://dev.to/poolad/building-a-tcp-bridger-server-in-go-part-1-2735	Building A TCP Bridger Server in Go Part What is going on I was experimenting on how to transfer data between two clients using a tcp connection I began by building a server capable of connecting two clients in order to be able to send textual messages back and forth over a TCP connection Then tried to transfer voice packets using that connection and realized I can build different clients that can utilize the power of the same server to transfer well anything In this or part series I ll show you how to build such a server with two clients What is TCP According to OSI Model TCP is defined inside Transport Layer which is Layer That s where the notion of ports like etc is added to the previous layer Network Protocols like HTTP are build on top of TCP They are basically a set of standards that define how messages should be transferred and interpreted What are the Requirements Intermediate understanding of Go languageSome knowledge about networks What Let s start by building a tcp server that listens on a specific port like Start func main func main var port string flag StringVar amp port p port number flag Parse addr err net ResolveTCPAddr tcp fmt Sprintf s port if err nil log Fatalln err l err net ListenTCP tcp addr if err nil log Fatalln err defer l Close ResolveTCPAddr returns an address of TCP end point Then we provide it to ListenTCP which in turn gives us a pointer to net TCPListener TCPListener internally consists of a network file descriptor which is basically a file descriptor to a socket bound to that port and a ListenConfig struct that contains options for listening to an address We also defer the Close function on our newly created listener to make sure it gets closed when the outer function returns I m not gonna discuss how the internals really work for now but let me know if you re interested in a deep dive Accepting Connections and spawning a new go routine for each one fmt Printf waiting for clients on port s n port for c err l AcceptTCP if err nil fmt Println err return defer c Close fmt Printf client connected s n c RemoteAddr String err c Write byte Hello Client nYou deserve a new Go routine n if err nil fmt Println err greeting user err return go cmdHandler c End func main Inside a for loop we will wait for clients to reach out AcceptTCP blocks until a new client is connected Then it returns a pointer to net TCPConn net TCPConn contains another network file descriptor that again points to a socket It is really important to understand that each net TCPConn returned from Accept is unique in the sense that it s source IP and port are different from others We will come back to this topic later when we start building a client for our server Again defer the Close function since we are dealing with a file descriptor like net TCPListenerEach time you open a file or in general anything that gives you a file descriptor you have to close it when you no longer need it net TCPConn has some methods on it Read and Write are two of them In fact it implements both io Reader and io Writer interfaces That s what we expect from a connection right We want to be able to both read from and write to it c RemoteAddr String returns a string representation of newly connected user in the form of ip port That s the port I was talking about which is unique for each net TCPConn You can navigate to official documentations to see all available methods on net TCPConn So after a successful connection we send a message back to user using Write method which accepts a byte slice and returns number of bytes written and an error There are also other ways to send data to clients For example fmt Fprint w io Writer a interface It takes an io Writer which we now know that net TCPConn is one such thing and writes the provided data to it err fmt Fprint c Hello Client nYou deserve a new Go routine n if err nil fmt Println err greeting user err return If everything goes as planned we reach to the point that we spawn a go routine for each client with it s associated net TCPConn As you probably know this is accomplished by calling go cmdHandler c Now let s see how cmdHandler function looks like Although we have bigger plans as the subject suggests for now we just read the textual data sent by each client and print it to standard output of the server machine func cmdHandler c net TCPConn defer c Close for msg err bufio NewReader c ReadString n if err nil if err io EOF fmt Printf client s left the session n c RemoteAddr String return fmt Println err return fmt Printf s gt s c RemoteAddr String msg Well we start by entering a loop bufio NewReader c ReadString n blocks the loop until is reads the provided element from the Reader In our case Reader is a net TCPConn and the element we are waiting for to occur is n LF Let s talk a little bit about buffered I O If you ever try to run this program and connect to it using a tool like telnet you will see when you write something on the client side as soon as you press enter the data gets printed on the server side You might think the moment you press enter the data gets sent but that s not always the case Data is constantly coming from a client we want to interpret it as we wish so we use something called a buffer to store it only print it when it s somehow complete in our case when the data contains a line feed n But be aware that tools like telnet may themselves have an internal buffer so they won t send data to the server until you press enter So cmdHandler prints the data sent by client to server s standard output When the connection is closed manually or by the client the last message is the EOF which indicates the End Of File And finally c RemoteAddr String returns the string representation of the remote address I think here is a good place to end the part Let me know your ideas in the comments section and wait for part Here is the complete code for ctrl c ctrl v lovers like me package mainimport bufio flag fmt io log net func main var port string flag StringVar amp port p port number flag Parse addr err net ResolveTCPAddr tcp fmt Sprintf s port if err nil log Fatalln err l err net ListenTCP tcp addr if err nil log Fatalln err defer l Close fmt Printf waiting for clients on port s n port for c err l AcceptTCP if err nil fmt Println err return defer c Close fmt Printf client connected s n c RemoteAddr String err c Write byte Hello Client nYou deserve a new Go routine n if err nil fmt Println err greeting user err return go cmdHandler c func cmdHandler c net TCPConn defer c Close for msg err bufio NewReader c ReadString n if err nil if err io EOF fmt Printf client s left the session n c RemoteAddr String return fmt Println err return fmt Printf s gt s c RemoteAddr String msg	2021-12-05 09:28:03
ニュース	BBC News - Home	Covid travel test changes a 'hammer blow' to industry	https://www.bbc.co.uk/news/uk-59536795?at_medium=RSS&at_campaign=KARANGA	changes	2021-12-05 09:50:08
ニュース	BBC News - Home	Storm Arwen: Snow, rain, and wind set to hit homes still without power	https://www.bbc.co.uk/news/uk-59535707?at_medium=RSS&at_campaign=KARANGA	arwen	2021-12-05 09:38:10
ニュース	BBC News - Home	Hand cycling has given me my freedom back	https://www.bbc.co.uk/news/uk-scotland-edinburgh-east-fife-59514294?at_medium=RSS&at_campaign=KARANGA	backamputee	2021-12-05 09:01:54
北海道	北海道新聞	菅氏、グループ結成に含み　「同志と政策実現したい」	https://www.hokkaido-np.co.jp/article/619380/	首相	2021-12-05 18:16:00
北海道	北海道新聞	軽石回収、財政支援を強化　自治体独自事業も対象	https://www.hokkaido-np.co.jp/article/619379/	全国各地	2021-12-05 18:14:00
北海道	北海道新聞	副長官、３回目接種の前倒し明言　「自治体の能力踏まえ」	https://www.hokkaido-np.co.jp/article/619378/	新型コロナウイルス	2021-12-05 18:14:00
北海道	北海道新聞	日米の作戦指揮能力向上へ　演習「ヤマサクラ」、対面実施	https://www.hokkaido-np.co.jp/article/619376/	陸上自衛隊	2021-12-05 18:01:00