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Gmail supports 10 GB attachment after integrating with Google Drive
Google today announced Gmail allows users to send attachment up to 10GB after integrating with Google Drive, the attachment size can be 400 times larger than traditional mail attachment size.Google also added another feature recently, it will pop up a separate window when writing new email. The integration of Gmail with Google Drive will introduce one Google Drive button at the bottom of the popup window, as a solution for sending large attachment.At the same time, because the attachment will b...
Google Drive, Gmail,SkyDrive,attachment 2012-11-28 11:12:56
Problem and Solution for Installing wxPython on Ubuntu 20.04
When we try to install wxPython lib on Ubuntu system to do software GUI development, most of time we may meet some installation and lib dependency problems. For the latest Ubuntu version, the problems still happen. Below are some common problems which happened frequently and their solution: --------------------------------------------------------------------------------------------------------------- Problem [1]: Install wxPython on Ubuntu 20.04 fail because of dependency package Gtk is not in...
PYTHON,WXPYTHON,UBUNTU 20.04 2020-09-09 05:32:35
mysql – connection example
Mysql is a database, and to gain access to the data within C++ you will need to be able to “talk†to the database via queries (just like on the mysql command line interface e.g. select * from tablename), the connection process is very similar to the command line interface you will need to supply connection details as in hostname (localhost normally), username, password, database to use and also there are other details that you can pass e.g port number more information can be gained f...
C++,Database,MySQL,Connection,Example 2011-10-29 00:42:10
The details and analysis of capturing gRPC packets
Introduction If you're only using gRPC at the application layer, I believe studying the examples on the gRPC official website is sufficient. However, when planning to extensively use gRPC within a team, you will face many challenges, such as authentication schemes between services, routing solutions for multi-region services, and compatibility solutions with existing RESTful services. I recently realized that applying a technology stack requires mastering a wealth of information about that stack...
Best practices of front end optimization
1. Use DocumentFragment or innerHTML to replace complex elements insertion DOM operation on browser is expensive. Although browser performance is improved much, multiple DOM elements insertion is still expensive and will affect the page load speed. Assume we have an ul element on our page, we now want to retrieve a JSON list using AJAX and then update the ul using JavaScript. Usually we may write it as : var list = document.querySelector('ul'); ajaxResult.items.forEach(function(item) { // ...
JavaScript,Front end,Optimization,Tips 2013-07-06 11:26:27
What can .htaccess file do?
A .htaccess file is a directory-level configuration file supported by several web servers, that allows for decentralized management of web server configuration. What can a .htaccess file do? We summarized some of them here. Hope it may help you. 1. Timezone settingSometimes when you use date() or mktime() functions in PHP, , it may display some weird information because of the timezone difference. For example, one possible warning is :Warning: date(): It is not safe to rely on the syste...
One reason why mcrypt responds slowly
This morning one colleague came over and talked about one script which used mcrypt responded very slowly, the server configurations are fine. But the reason for the slowness is unknown. Here is one script which reproduces the issue: <?php $dmcryptText = "dummy"; $key = "foobar"; $size = mcrypt_get_iv_size(MCRYPT_BLOWFISH,MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($size); //Take care $m = mcrypt_ecb(MCRYPT_BLOWFISH, $key, $dmcryptText, MCRYPT_DECRYPT, $iv); var_dump($m); When 20 requests of&...
<=> operator in MySQL
Have you ever seen "<=>" in a SQL query while using MySQL? Does it mean less and equals to and greater than? Actually if you consider it as the union of <= and =>, great, you are close to it. This is one form of equal operator in MySQL, it has the similar meaning to the = operator with some subtle difference. According to MySQL documentation, <=> is NULL-safe equal. This operator performs an equality comparison like the = operator, but returns 1 rather than NULL if both operand...
Create successful Python projects
The ecosystem for open source Python projects is both rich and diverse. This enables you to stand on the shoulders of giants in the production of your next open source project. In addition, it means that there's a set of community norms and best practices. By adhering to these conventions and applying the practices in your project, you may gain wider adoption for your software. This article covers practi...
Python,Project,Open Source,Team Management 2012-02-03 08:09:27
Maybe we need //Comment comment
Do we need comment in our programs? Depends, if we can write a program which can clearly tell s the reader what the program does, then we had better to avoid unnecessary comments. However, if the program we develop is complex enough and it involves some uncommon logic which needs more explanation, then we have to add comment and make sure the comment we add can correctly tell the readers what we do. The worst scenarios is not you forget or you don't want to add comment, it's that you add comment...
comment,programming 2014-07-23 04:38:04
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