backwards-compatibility

问题 StringIO is the file-like string buffer object we use when reading pandas dataframe from text, e.g. "How to create a Pandas DataFrame from a string?" Which of these two imports should we use for StringIO (within pandas)? This is a long-running question that has never been resolved over four years. StringIO.StringIO (Python 2) / io.StringIO (Python 3) Advantages: more stable for futureproofing code, but forces us to version-fork, e.g. see code at bottom from EmilH. pandas.compat.StringIO

问题 Are there any resources that can test a jQuery script/extension/plugin/whatever for version compatibility issues? 回答1: Just wrote a small jQuery plugin to help with version compatibility issues... feel free to improve upon it. (function($) { /** * Used for version test cases. * * @param {string} left A string containing the version that will become * the left hand operand. * @param {string} oper The comparison operator to test against. By * default, the "==" operator will be used. * @param

问题 Are there any resources that can test a jQuery script/extension/plugin/whatever for version compatibility issues? 回答1: Just wrote a small jQuery plugin to help with version compatibility issues... feel free to improve upon it. (function($) { /** * Used for version test cases. * * @param {string} left A string containing the version that will become * the left hand operand. * @param {string} oper The comparison operator to test against. By * default, the "==" operator will be used. * @param

问题 From examples provided on the Android Developer pages I see that new Views, like the RecyclerView , are backward compatible ( android.support.v7.widget.RecyclerView ). Are all the new things introduced in Material Design backward compatible (to which version)? 回答1: Updating this answer as Lollipop OS is officially released with support libraries, which you can use inside your project to provide compatibility to older versions. Support library: v7 appcompat library This library adds support

问题 The context is as follows I want to refactor code by moving it around to different projects Some of this code comprises of serializable DTOs that are used to send and receive data across multiple endpoints If I move the code around, serialization breaks (therefore it is not backward compatible with older versions of my application) A solution to this problem is the SerializationBinder which allows me to "redirect" in a sense from one type to another. I therefore want to create a

问题 The context is as follows I want to refactor code by moving it around to different projects Some of this code comprises of serializable DTOs that are used to send and receive data across multiple endpoints If I move the code around, serialization breaks (therefore it is not backward compatible with older versions of my application) A solution to this problem is the SerializationBinder which allows me to "redirect" in a sense from one type to another. I therefore want to create a

问题 Backward binary compatibility (or downward compatibility) - an ability of clients built with an old version of library API to run on a new one (wiki). Upward binary compatibility (or forward compatibility) - an ability of clients built with a new version of library API to run on old one (wiki). The general Sun's document about JDK Incompatibilities in J2SE 5.0 since 1.4.2 (and Java SE 6 compatibility with J2SE 5.0 too) describes the compatibility of JDK as following: JDK 5.0 is upwards binary

问题 What is the best way to take advantage of the new auto layout features of iOS 6 while still providing compability with older devices on earlier versions of iOS? 回答1: Autolayout can be enabled or disabled on each .storyboard or .xib file. Just select the particular file and modify the "Use Autolayout" property using the File inspector in Xcode: Using autolayout enabled interface files with the deployment target set to an iOS version prior to 6.0 results in compilation errors, e.g.: Error in

问题 Consider the case where I'm using some functionality from the Linux headers exported to user space, such as perf_event_open from <linux/perf_event.h> . The functionality offered by this API has changed over time, as members have been added to the perf_event_attr , such as perf_event_attr.cap_user_time. How can I write source that compiles and uses these new functionalities if they are available locally, but falls back gracefully if they aren't and doesn't use them? In particular, how can I

问题 I'm hoping someone can either tell me what I'm doing wrong correct my flawed understanding of how this works and explain why it's not possible. I've been developing a fairly basic database/program for a client in Access. They have Office 2007, I have Office 2010. Initial test of creating a database in 2010 (in "2007" format) and opening the forms and data in Office 2007 showed no problems. Fast forward 3 weeks. I've sent them a recent copy for approval and they can't open it. Unrecognised