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How to open a file using the open with statement
...output in Python. I've written the following code to read a list of names (one per line) from a file into another file while checking a name against the names in the file and appending text to the occurrences in the file. The code works. Could it be done better?
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HTTP POST Returns Error: 417 “Expectation Failed.”
... to Twitter that suddenly stopped working the day after Christmas. They'd done an upgrade or config change that caused their servers to start choking on that header. It was a pain to find the fix.
– xcud
Feb 19 '09 at 20:00
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Get protocol, domain, and port from URL
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Or just turn it into a one-liner: window.location.href.split('/').slice(0, 3).join('/')
– Ryan McGeary
May 16 '17 at 19:35
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How to generate a random int in C?
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It is a common practice alright, but not the correct one. See this and this.
– Lazer
Aug 1 '10 at 7:33
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MySQL error: key specification without a key length
...ch! This is maybe the easiest solution, but in lot situations not the best one. Your key is consisting of two columns and column order is important.
– MrD
Nov 22 '15 at 12:19
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How to export revision history from mercurial or git to cvs?
...do. My suggestions (and what we do here at $work):
Creating the Initial Clone
Use git cvsimport to clone the CVS revision history into a git repository. I use the following invocation:
% git cvsimport -d $CVSROOT -C dir_to_create -r cvs -k \
-A /path/to/authors/file cvs_module_to_checkout
The -...
Question mark and colon in JavaScript
... To be pedantic, it's a ternary operator, which happens to be the only one in most programming languages. Any operator that works on 3 parts is a ternary operator, just like addition is a binary operator that operates on the preceding and following expressions (e.g. 1+2 the plus operates on 1 a...
How can I extract embedded fonts from a PDF as valid font files?
...hey include just the subset of glyphs used in the document.
Using pdftops
One of the most frequently used methods to do this on *nix systems consists of the following steps:
Convert the PDF to PostScript, for example by using XPDF's pdftops (on Windows: pdftops.exe helper program.
Now fonts will b...
When should you not use virtual destructors?
...irtual destructor for a class? When should you specifically avoid writing one?
12 Answers
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