state

python shell: pickle entire state

天大地大妈咪最大 提交于 2019-12-01 08:58:19
When using either " ipython " or " code.interact(local=locals()) ", I'd like to have a way to save the entire program address space into a pickle file, and similarly a way to load such a file and then start executing in that context. This should be totally possible for simple scripts because of virtual memory. All defined names (and the non-orphaned objects they point to), from locals up through globals and global functions, would be pickled. When unpickling, those names would be assigned again, at their original scope. Assume that the program doesn't use the network, so state discontinuity

python shell: pickle entire state

。_饼干妹妹 提交于 2019-12-01 06:53:42
问题 When using either " ipython " or " code.interact(local=locals()) ", I'd like to have a way to save the entire program address space into a pickle file, and similarly a way to load such a file and then start executing in that context. This should be totally possible for simple scripts because of virtual memory. All defined names (and the non-orphaned objects they point to), from locals up through globals and global functions, would be pickled. When unpickling, those names would be assigned

Is it bad to commit mutations without using actions in Vuex?

懵懂的女人 提交于 2019-12-01 06:38:48
I have been using Vuex for awhile now, and I have always been following the pattern: Components use Actions to commit Mutations to mutate the Store. I thought this was the proper way to do things considering this diagram from the docs: I came across code where people were committing mutations directly in components, and not even creating simple actions which have no purpose other than to trigger mutations. I even found several examples of this in the Vuex docs. I figured since it's used in the docs this must be an acceptable pattern, and I was wondering if skipping Actions and directly

What is the difference between a “stateful” and “stateless” system?

a 夏天 提交于 2019-12-01 06:23:51
问题 Apache Spark brags that its operators (nodes) are "stateless". This allows Spark's architecture to use simpler protocols for things like recovery, load balancing, and handling stragglers. On the other hand Apache Flink describes its operators as "stateful", and claim that statefulness is necessary for applications like machine learning. Yet Spark programs are able to pass forward information and maintain application data in RDDs without maintaining "state". What is happening here? Is Spark

Is it bad to commit mutations without using actions in Vuex?

不打扰是莪最后的温柔 提交于 2019-12-01 03:23:23
问题 I have been using Vuex for awhile now, and I have always been following the pattern: Components use Actions to commit Mutations to mutate the Store. I thought this was the proper way to do things considering this diagram from the docs: I came across code where people were committing mutations directly in components, and not even creating simple actions which have no purpose other than to trigger mutations. I even found several examples of this in the Vuex docs. I figured since it's used in

How to listen to localstorage in react.js

≯℡__Kan透↙ 提交于 2019-12-01 01:43:56
问题 I'm having a problem with a component that gets data from an array in localstorage. It gets the initial data when the page loads, but how do I update when localstorage is changed? import React, {Component} from 'react'; class MovieList extends Component { constructor(props){ super(props) this.state = { filmList: [] } } componentWillMount(){ var film = [], keys = Object.keys(localStorage), i = keys.length; while ( i-- ) { film.push( localStorage.getItem(keys[i])) } this.setState({filmList:

Android - Save activity state when starting new activity

时光怂恿深爱的人放手 提交于 2019-12-01 01:32:26
I'm currently working an application that should have the following behavior : In one of the activities, the user can select different items into a list. While doing that, he should be able to take a picture, save it, and return to the previous activity. I'm having the following problem : when the user goes back to the activity after taking the picture, the progress (basically, the items selected) is lost. I tried to use android:launchMode="singleInstance" (as well as singleTask) and android:alwaysRetainTaskState="true" on my activity to save its current state (and it works great when the user

how can I save a bitmap with onRetainNonConfigurationInstance() for screen orientation?

蓝咒 提交于 2019-11-30 21:19:34
In my class view phone cam will be opened and programme shows the bitmap after user take photo from phone cam but at the same time the user rotates the screen to "landscape" bitmap will disappear and activity's oncreate() will load again and then camera will be opened again. I didnt know save bitmap with onRetainNonConfigurationInstance() or onSaveInstanceState(). The question is this how can I save the bitmap(taken from phone cam) before user rotates the phone so that even if phone is landscape mode same bitmap will be showed in the screen?? ---EDIT--- Adding to AndroidManifest.xml is a good

jqGrid Grouping state when filtering

会有一股神秘感。 提交于 2019-11-30 21:15:14
I am using a filter for my jqGrid grid, and the data is in groups, defaulting first state of collapsed. If a user open a group or 2 (expaning the groups) , then does the filter, the grid reloads the data, filters it correctly, but then I loose the expanded state of the groups the user opened. Is there a way to not have it, toggle back to the default state of collapsed when doing a filter? Thanks in Advance. Oleg I find your question interesting. So +1 from me. I made a demo which shows how to implement your requirements. The main idea of the implementation is the same as in the answer . I

Android - Save activity state when starting new activity

你说的曾经没有我的故事 提交于 2019-11-30 20:52:58
问题 I'm currently working an application that should have the following behavior : In one of the activities, the user can select different items into a list. While doing that, he should be able to take a picture, save it, and return to the previous activity. I'm having the following problem : when the user goes back to the activity after taking the picture, the progress (basically, the items selected) is lost. I tried to use android:launchMode="singleInstance" (as well as singleTask) and android