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How do I tell CPAN to install all dependencies?
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If you get an error Can't locate object method "install" via package "xxx" at -e line 1. add a "+" right before the module name.
– Yann Sagon
Mar 28 '14 at 16:12
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How to reverse a 'rails generate'
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rails destroy controller Controller_name was returning a bunch of errors. To be able to destroy controller I had to remove related routes in routes.rb. P.S. I'm using rails 3.1
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impr...
How to print from GitHub
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answered May 12 '16 at 2:05
kitsunekitsune
12422 silver badges66 bronze badges
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How can I dynamically create derived classes from a base class
...Factory call
if key not in argnames:
raise TypeError("Argument %s not valid for %s"
% (key, self.__class__.__name__))
setattr(self, key, value)
BaseClass.__init__(self, name[:-len("Class")])
newclass = type(name, (BaseClass,),{...
Timeout on a function call
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I use Python 2.5.4. There is such an error: Traceback (most recent call last): File "aa.py", line 85, in func signal.signal(signal.SIGALRM, handler) AttributeError: 'module' object has no attribute 'SIGALRM'
– flypen
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PHP expects T_PAAMAYIM_NEKUDOTAYIM?
...ut a statement with anything other than :: after the cat would be a syntax error. If $mouse were not a declared property of cat you would get a fatal error, but still not a syntax error.
– chiliNUT
Jan 21 '16 at 2:56
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What is the most pythonic way to check if an object is a number?
...omething, you generally have to try something like:
try: 0 + x
except TypeError: canadd=False
else: canadd=True
The presence of __add__ per se tells you nothing useful, since e.g all sequences have it for the purpose of concatenation with other sequences. This check is equivalent to the definiti...
Returning value from called function in a shell script
...nuelJordan, Functions can only return exit codes and >&2 logs to stderror, so, the last echo is written to stdout, so, the calling function ONLY captures stdout and not stderr. Assuming execution is single threaded, a better option is to maintain a custom variable specific like TEST_LOCK_STAT...
Centering a background image, using CSS
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There's an error in your code. You're using a mix of full syntax and shorthand notation on the background-image property.This is causing the no-repeat to be ignored, since it's not a valid value for the background-image property.
body{...
Fastest Way to Find Distance Between Two Lat/Long Points
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Another error correction - you are missing a closing ) on the second to last line
– ina
Feb 21 '12 at 12:30
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