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TypeError: sequence item 0: expected string, int found
... data from a dictionary into a database. I want to iterate over the values and format them accordingly, depending on the data type. Here is a snippet of the code I am using:
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Should __init__() call the parent class's __init__()?
...cessary, since the super method is empty. Same for __del__.
On the other hand, for __new__, you should indeed call the super method, and use its return as the newly-created object - unless you explicitly want to return something different.
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How are virtual functions and vtable implemented?
...t 1 virtual function. There is a space overhead associated with the vtable and a time overhead associated with calling a virtual function vs a non-virtual function.
Do abstract classes simply have a NULL for the function pointer of at least one entry?
The answer is it is unspecified by the languag...
How do I check if a column is empty or null in MySQL?
...e_col = ' ' (one space inserted in the string) then it works on both MySQL and Oracle, see answer of "onedaywhen". some_col = '' doesn't work on Oracle as empty strings mean NULL there.
– Johanna
May 18 '15 at 14:07
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How do you use https / SSL on localhost?
...SSL
Enabled = true” in the project properties window.
See the steps and pictures at this code project.
IIS Express will generate a certificate for you (you'll be prompted for it, etc.). Note that depending on configuration the site may still automatically start with the URL rather than the SS...
Performance optimization strategies of last resort [closed]
...ite already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization.
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Split string in Lua?
...imple split of a string, but there doesn't seem to be a function for this, and the manual way I tested didn't seem to work. How would I do it?
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Logger slf4j advantages of formatting with {} instead of string concatenation
...ameters since API version 1.7.
For those cases where you need more than 2 and you're stuck with pre-1.7 SLF4J, then just use either string concatenation or new Object[] { param1, param2, param3, ... }. There should be few enough of them that the performance is not as important.
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How do I check if a list is empty?
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Playing devil's advocate. I don't understand why this idiom is considered pythonic. 'Explicit is better then implicit', correct? This check doesn't seem very explicit about what is is checking.
– James McMahon
Nov 22 '11 at 6:1...
Using --no-rdoc and --no-ri with bundler
When using gem install gem_name I can pass --no-rdoc and --no-ri switches to skip generating RDoc/RI documentation for the gem on install.
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