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Trending in Stackoverflow

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Date: 2018-01-16

  1. How do I delete (unset) an exported environment variable?

    tags: linux, environment-variables, unset

    967 votes, 3 answers and 547486 views

    \r\n Before installing gnuplot I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src.\n\nDuring the installation something went wrong; now I want to remove the GNUPLOT_DRIVER_DIR ...\r\n

  2. What do the python file extensions, .pyc .pyd .pyo stand for?

    tags: python

    296 votes, 3 answers and 190055 views

    \r\n What do these python file extensions mean?\r\n.pyc\n.pyd\n.pyo\r\nWhat are the differences between them and how are they generated from a *.py file?\r\n

  3. How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'

    tags: mysql, deadlock

    186 votes, 5 answers and 222363 views

    \r\n I have a innoDB table which records online users. It gets updated on every page refresh by a user to keep track of which pages they are on and their last access date to the site. I then have a cron ...\r\n

  4. How do I get my python program to sleep for 50 milliseconds?

    tags: python, timer, sleep

    321 votes, 4 answers and 260863 views

    \r\n How do I get my python program to sleep for 50 milliseconds?\r\n

  5. Extract value of attribute node via XPath

    tags: xml, xpath

    186 votes, 6 answers and 290319 views

    \r\n How can I extract the value of an attribute node via XPath?\n\nA sample XML file is:\n\n\n \n \n &...\r\n

  6. Schema for a multilanguage database

    tags: database-design, localization, multilingual

    186 votes, 10 answers and 73627 views

    \r\n I'm developing a multilanguage software. As far as the application code goes, localizability is not an issue. We can use language specific resources and have all kinds of tools that work well with ...\r\n

  7. Convert string[] to int[] in one line of code using LINQ

    tags: c#, .net, linq, extension-methods

    187 votes, 6 answers and 147919 views

    \r\n I have an array of integers in string form:\n\nvar arr = new string[] { "1", "2", "3", "4" };\r\nI need to an array of 'real' integers to push it further:\n\nvoid Foo(int[] arr) { .. }\r\nI tried to cast int ...\r\n

  8. How can Python iterate over dictionaries with 'for' loops using only the dict keys?

    tags: python, python-2.7, dictionary, key, iteration

    1657 votes, 12 answers and 2233477 views

    \r\n I am a bit puzzled by the following code:\n\nd = {'x': 1, 'y': 2, 'z': 3} \nfor key in d:\n print key, 'corresponds to', d[key]\r\nWhat I don't understand is the key portion. How does Python recognize ...\r\n

  9. Entity Framework - Include Multiple Levels of Properties

    tags: c#, entity-framework

    207 votes, 6 answers and 116843 views

    \r\n The Include() method works quite well for Lists on objects. But what if I need to go two levels deep? For example, the method below will return ApplicationServers with the included properties shown ...\r\n

  10. Rename a table in MySQL

    tags: mysql, database, table-rename

    185 votes, 12 answers and 256295 views

    \r\n Renaming a table is not working in MySQL\n\nRENAME TABLE group TO member;\r\nThe error message is\n\n#1064 - You have an error in your SQL syntax; check the manual that corresponds\n to your MySQL ...\r\n