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Batch file to copy directories recursively
...h will recursively copy files and subdirectories.
There are examples, 2/3 down the page. Of particular use is:
To copy all the files and subdirectories (including any empty subdirectories) from drive A to drive B, type:
xcopy a: b: /s /e
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Numpy array assignment with copy
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All three versions do different things:
B = A
This binds a new name B to the existing object already named A. Afterwards they refer to the same object, so if you modify one in place, you'll see the change through the other one too.
B[:] = A ...
How to plot multiple functions on the same figure, in Matplotlib?
...lot the following 3 functions (i.e. sin , cos and the addition), on the domain t , in the same figure?
3 Answers
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Multiple glibc libraries on a single host
...is very possible to have multiple versions of glibc on the same system (we do that every day).
However, you need to know that glibc consists of many pieces (200+ shared libraries) which all must match. One of the pieces is ld-linux.so.2, and it must match libc.so.6, or you'll see the errors you are...
Difference between break and continue statement
...ement. You
can also use an unlabeled break to terminate a for, while, or do-while
loop [...]
An unlabeled break statement terminates the innermost switch, for,
while, or do-while statement, but a labeled break terminates an outer
statement.
continue
The continue statement skips th...
Download a file with Android, and showing the progress in a ProgressDialog
... application that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in the first place.
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Python logging not outputting anything
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logging.info('I told you so') # will not print anything
The 'info' line doesn't print anything, because the level is higher than info.
To change the level, just set it in the root logger:
'root':{'handlers':('console', 'file'), 'level':'DEBUG'}
In other words, it's not enough to define a hand...
An async/await example that causes a deadlock
...his is explained really well in an article by Stephen Toub, about half way down where he uses the example of DelayAsync().
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Querying data by joining two tables in two database on different servers
...erent servers, I need to join them so as to make few queries. What options do I have? What should I do?
11 Answers
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Rake just one migration
...to run just one migration out of a whole bunch in my rails app. How can I do this? I don't want to run any of the migrations before or after it. Thanks.
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