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How to delete a workspace in Perforce (using p4v)?
...d have created a few workspaces as exercises for getting familiar with it. Now I would like to delete some of the workspaces. I just want to get rid of the workspaces so that they do not appear on the drop-down in the workspaces view ( do not want to do anything with actual depot files).
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How to check whether a pandas DataFrame is empty?
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This seems like a shame, since you need to know that df is a pd.DataFrame. I'd like to know the motivation for not implementing bool() on pd.DataFrame.
– Quant
Feb 14 '14 at 16:55
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How to remove convexity defects in a Sudoku square?
...a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images:
lY = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask];
lX = Image...
Gulps gulp.watch not triggered for new or deleted files?
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Edit: Apparently gulp.watch does work with new or deleted files now. It did not when the question was asked.
The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions only on the files that have been modified, while gulp.wat...
How to validate an email address in PHP
...xists. The only way to find that out is by sending a confirmation mail.
Now that you have your easy answer feel free to read on about email address validation if you care to learn or otherwise just use the fast answer and move on. No hard feelings.
Trying to validate an email address using a re...
Type hinting a collection of a specified type
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Now that Python 3.5 is officially out, there is the Type Hints supporting module - typing and the relevant List "type" for the generic containers.
In other words, now you can do:
from typing import List
def my_func(l: List...
How do I format XML in Notepad++?
...error when trying to use this plugin, try XML Tools -> Check XML syntax now. I had an issue where the encoding was specified as UTF-16 but was actually UTF-8. Changing the encoding attribute in the XML file fixed the problem.
– Mirza Dobric
Jul 20 '12 at 1...
How to count lines of Java code using IntelliJ IDEA?
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Works in IDEA 12 now, not found in the repository you need to install via manually downloading.
– sjakubowski
Sep 18 '13 at 15:36
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Missing file warnings showing up after upgrade to Xcode 4
I recently upgraded to Xcode 4 (which is a great upgrade) but now I'm getting some warnings that I did not get before. I have looked through forums and other SO posts but have not come across how to fix this.
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git diff file against its last change
...possible to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it?
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