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How to check if type of a variable is string?
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isinstance(s, basestring)
basestring is the abstract superclass of str and unicode. It can be used to test whether an object is an instance of str or unicode.
In Python 3.x, the correct test is
isinstance(s, str)
The bytes class isn't considered a string type in Python 3.
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How to kill/stop a long SQL query immediately?
I am using SQL server 2008 and its management studio. I executed a query that yields many rows. I tried to cancel it via the red cancel button, but it has not stopped for the past 10 minutes. It usually stops within 3 minutes.
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MySQL load NULL values from CSV data
...is will do what you want. It reads the fourth field into a local variable, and then sets the actual field value to NULL, if the local variable ends up containing an empty string:
LOAD DATA INFILE '/tmp/testdata.txt'
INTO TABLE moo
FIELDS TERMINATED BY ","
LINES TERMINATED BY "\n"
(one, two, three, ...
Python append() vs. + operator on lists, why do these give different results?
...ethod however does literally what you ask: append the object on the right-hand side that you give it (the array or any other object), instead of taking its elements.
An alternative
Use extend() if you want to use a function that acts similar to the + operator (as others have shown here as well). It'...
git-upload-pack: command not found, when cloning remote Git repo
..., try this:
ssh you@remotemachine echo \$PATH
(That works in Bash, Zsh, and tcsh, and probably other shells too.)
If the path it gives back doesn't include the directory that has git-upload-pack, you need to fix it by setting it in .bashrc (for Bash), .zshenv (for Zsh), .cshrc (for tcsh) or equi...
Variable number of arguments in C++?
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You probably shouldn't, and you can probably do what you want to do in a safer and simpler way. Technically to use variable number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that opera...
Remove DEFINER clause from MySQL Dumps
...them after the dump file is created.
Open the dump file in a text editor and replace all occurrences of DEFINER=root@localhost with an empty string ""
Edit the dump (or pipe the output) using perl:
perl -p -i.bak -e "s/DEFINER=\`\w.*\`@\`\d[0-3].*[0-3]\`//g" mydatabase.sql
Pipe the output throug...
Static Indexers?
... indexers disallowed in C#? I see no reason why they should not be allowed and furthermore they could be very useful.
7 Ans...
What's a quick way to comment/uncomment lines in Vim?
...nfused by the usage, default leader is "\" so 10\cc will comment ten lines and 10\cu will uncomment those ten lines
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
... experience with Java shows that type variables improve code comprehension and make more refactorings possible.
– tgdavies
Nov 4 '10 at 16:52
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