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How to know if an object has an attribute in Python
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hasattr is exactly the same as using try/except AttributeError: the docstring of hasattr (in Python 2.7) says that it uses getattr hand catches exceptions.
– Jeff Tratner
Apr 27 '12 at 3:04
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How to get just one file from another branch
...t can be a good question to ask here, with specific details like the exact error message, and version of Git and OS used.
– VonC
Jun 5 '14 at 21:23
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Simulate delayed and dropped packets on Linux
...empting to use tc qdisc change on an interface with no rules will give the error RTNETLINK answers: No such file or directory.
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Optional Parameters with C++ Macros
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XXX_4(1,2,3,4);
5;
PS: Remove the #define for XXX_0 to get a compile error [ie: if a no-argument option is not allowed].
PPS: Would be nice to have the invalid situations (eg: 5) be something that gives a clearer compilation error to the programmer!
PPPS: I'm not an expert, so I'm very happy...
How to install CocoaPods?
...ed to install but always failed because of the starting steps. I found one error whereby I can't install gems first. Can anyone give me the steps one by one? How to install or demo.
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Delete all Duplicate Rows except for One in MySQL? [duplicate]
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The subquery in a subquery is necessary for MySQL, or you'll get a 1093 error.
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Create Windows service from executable
...egistering a non-service executable as a service, you'll get the following error upon trying to start the service:
Error 1053: The service did not respond to the start or control request in a timely fashion.
There are tools that can create a Windows Service from arbitrary, non-service executab...
Any good boolean expression simplifiers out there? [closed]
... at 21:12
500 - Internal Server Error500 - Internal Server Error
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Is it ok to use dashes in Python files when trying to import them?
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the problem has nothing to do with style, it's a syntax error
– user3850
Apr 19 '09 at 0:09
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PostgreSQL - how to quickly drop a user with existing privileges
...USER testuser; GRANT ALL ON foo TO testuser; DROP USER testuser gave the error messages: ERROR: role "testuser" cannot be dropped because some objects depend on it DETAIL: access to table foo. However, DROP OWNED BY testuser did the trick, apparently Postgres considers grants to be droppable ob...