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Rails: Adding an index after adding column
...ated a table table in a Rails app. Some time later, I add a column running:
5 Answers
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Python CSV error: line contains NULL byte
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As @S.Lott says, you should be opening your files in 'rb' mode, not 'rU' mode. However that may NOT be causing your current problem. As far as I know, using 'rU' mode would mess you up if there are embedded \r in the data, but not cause any other dramas...
How do I move a single folder from one Subversion repository to another repository?
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If you have access the repository itself (not a working copy), you should be able to dump the current repository, filter it to only include information about the docs folder, and load it into the other repository.
Would be something like this:
svnadmin dump /svn/old_repos >...
Upgrade python in a virtualenv
Is there a way to upgrade the version of python used in a virtualenv (e.g. if a bugfix release comes out)?
12 Answers
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Tetris-ing an array
...ve the order doesn't matter for the result.
This is the same as for other binary operations like for example addition or greatest common divisor.
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How to remove illegal characters from path and filenames?
I need a robust and simple way to remove illegal path and file characters from a simple string. I've used the below code but it doesn't seem to do anything, what am I missing?
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Do Git tags only apply to the current branch?
I'm currently working with a repository that has multiple branches.
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Array versus linked-list
...t's easier for a linked list to grow organically. An array's size needs to be known ahead of time, or re-created when it needs to grow.
Shuffling a linked list is just a matter of changing what points to what. Shuffling an array is more complicated and/or takes more memory.
As long as your iterati...
How to iterate a loop with index and element in Swift
Is there a function that I can use to iterate over an array and have both index and element, like Python's enumerate ?
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Removing duplicates in lists
...w list with the items that weren't duplicated/removed. This is what I have but to be honest I do not know what to do.
50 An...