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Add text to Existing PDF using Python
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I recommend using PyPDF2 since it is more updated, also check their sample code: github.com/mstamy2/PyPDF2/blob/…
– blaze
Apr 23 '15 at 4:06
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Disable Required validation attribute under certain circumstances
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Is a statically-typed full Lisp variant possible?
...cheme code. See Typed Racket for a recent language that is a "Full Lisp" (more like Scheme, actually) with static typing.
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How can I override Bootstrap CSS styles?
...oints)
Among two selector styles browser will always choose the one with more weight. Order of your stylesheets only matters when priorities are even - that's why it is not easy to override Bootstrap.
Your option is to inspect Bootstrap sources, find out how exactly some specific style is defined...
How to profile a bash shell script slow startup?
...rofiling data), as one doesn't has to untangle stderr and set -x output anymore (so many edge cases).
– pawamoy
Apr 24 '19 at 19:54
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Escape a string for a sed replace pattern
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Warning: This does not consider newlines. For a more in-depth answer, see this SO-question instead. (Thanks, Ed Morton & Niklas Peter)
Note that escaping everything is a bad idea. Sed needs many characters to be escaped to get their special meaning. For example, if yo...
How to create an infinite loop in Windows batch file?
...sing good(?) old goto?
:loop
echo Ooops
goto loop
See also this for a more useful example.
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How can I troubleshoot my Perl CGI script?
...ng the warnings pragma to all of your files:
use warnings;
If you need more information than the short warning message, use the diagnostics pragma to get more information, or look in the perldiag documentation:
use diagnostics;
Did you output a valid CGI header first?
The server is expectin...
The new syntax “= default” in C++11
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Actually, 8.4.2/2 is more informative: "If a function is explicitly defaulted on its first declaration, (a) it is implicitly considered to be constexpr if the implicit declaration would be, (b) it is implicitly considered to have the same excepti...
How to debug Lock wait timeout exceeded on MySQL?
...tement that the query was attempting to change at least one row in one or more InnoDB tables.
Since you know the query, all the tables being accessed are candidates for being the culprit.
From there, you should be able to run SHOW ENGINE INNODB STATUS\G
You should be able to see the affected table(...