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What's the simplest way to subtract a month from a date in Python?

...at what they want can be done just by dt - timedelta(days=dt.day) As originally phrased though it sounded like they wanted to be able to subtract an arbitrary number of months and that is a bit harder. – Duncan Sep 19 '19 at 14:27 ...
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Converting a Java collection into a Scala collection

... but you can also avoid using jcl.Buffer: Set(javaApi.query(...).toArray: _*) Note that scala.collection.immutable.Set is made available by default thanks to Predef.scala. share | improve this an...
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Get an OutputStream into a String

... I would use a ByteArrayOutputStream. And on finish you can call: new String( baos.toByteArray(), codepage ); or better: baos.toString( codepage ); For the String constructor, the codepage can be a String or an instance of java.nio.charset.Charset. A possible value is java.nio.ch...
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How to replace multiple strings in a file using PowerShell

... PowerShell to continue parsing the expression on the next line: $original_file = 'path\filename.abc' $destination_file = 'path\filename.abc.new' (Get-Content $original_file) | Foreach-Object { $_ -replace 'something1', 'something1aa' ` -replace 'something2', 'something2bb' ` -re...
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Display block without 100% width

... gets positioned before the last span. Guess one solution would be to make all child elements in the li float. – Staffan Estberg Oct 3 '12 at 17:01 ...
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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...

...了一下,差不多几十页的样子,发现其中有六个函数phase_1……phase_6,基本上也就可以确定就是这六个关卡了。 ===============phase_1=============== 知识点:string,函数调用,栈 用了差不多一个星期断断续续地寻找感觉的phase_1,最...
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Rails: around_* callbacks

...classes/ActiveRecord/Callbacks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* . ...
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Manipulating an Access database from Java without ODBC

... UCanAccess is a pure Java JDBC driver that allows us to read from and write to Access databases without using ODBC. It uses two other packages, Jackcess and HSQLDB, to perform these tasks. The following is a brief overview of how to get it set up.   Option 1: Using...
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How to validate an OAuth 2.0 access token for a resource server?

...(RS) and Authorization Server (AS) for access token (AT) validation. It really depends on the AS's token format/strategy - some tokens are self-contained (like JSON Web Tokens) while others may be similar to a session cookie in that they just reference information held server side back at the AS. ...
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Copy a table from one database to another in Postgres

...ant, works great, just don't forget to set Disable triggers when exporting all database – norbertas.gaulia Sep 4 '15 at 15:38  |  show 2 more ...