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Mercurial for Beginners: The Definitive Practical Guide

...s configured in a normal text file called .hgignore in the root of your repository. Add it just like a normal file with: hg add .hgignore There are two syntax options available for file matching, glob and regexp. glob is unix-like filename expansion and regexp is regular expressions. You activate...
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how to create a file name with the current date & time in python?

... @rwbyrd That is odd, I just tried those exact 3 lines (copy-paste) with Python 3.4.1 and 2.7.6 and it works - though with Python 3 you need to use print(timestr). Did you copy this text from above? Perhaps a typo otherwise? – Levon ...
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Activity transition in Android

... Thanks iandisme. overridePengingTransition is API level 5. Is it not possible to do this for level 3 (Android 1.5)? – hpique Aug 2 '10 at 16:11 ...
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App Inventor 2 列表代码块 · App Inventor 2 中文网

...异常、报错。 如果给定列表是一个二维列表,如 [["abc","123"],["xyz","456"]] ,则返回的列表项也是一个列表对象,如 ["abc","123"]。 求对象在列表中的位置 返回指定对象在列表中的位置,从 1 开始,如果不在列...
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CPU Privilege Rings: Why rings 1 and 2 aren't used?

...iminished greatly. The intent by Intel in having rings 1 and 2 is for the OS to put device drivers at that level, so they are privileged, but somewhat separated from the rest of the kernel code. Rings 1 and 2 are in a way, "mostly" privileged. They can access supervisor pages, but if they attempt ...
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Windows batch files: .bat vs .cmd?

... From this news group posting by Mark Zbikowski himself: The differences between .CMD and .BAT as far as CMD.EXE is concerned are: With extensions enabled, PATH/APPEND/PROMPT/SET/ASSOC in .CMD files will set ERRORLEVEL regardless of error...
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Are default enum values in C the same for all compilers?

...tion: Value of jan will be 0,feb will be 1,mar will be 2. enum months{jan=123,feb=999,mar} Explanation: Value of jan will be 123,feb will be 999,mar will be 1000. enum months{jan='a',feb='s',mar} Explanation: Value of jan will be 'a',feb will be 's',mar will be 't'. ...
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Which is the preferred way to concatenate a string in Python?

... to a string, then to a list: a += b: 0.10780501365661621 a.append(b): 0.1123361587524414 OK, turns out that even when the resulting string is a million characters long, appending was still faster. Now let's try with appending a thousand character long string a hundred thousand times: a += b: 0...
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Command line to remove an environment variable from the OS level configuration

... Ah! What do you suppose the rational is for that?? I always avoid admin as much as possible - UNIX/BSD/Linux upbringing. Thanks a mil for the awesome diligence. +1 – caasjj Apr 5 '16 at 20:36 ...
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How can I Remove .DS_Store files from a Git repository?

How can I remove those annoying Mac OS X .DS_Store files from a Git repository? 25 Answers ...