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How to drop a list of rows from Pandas dataframe?
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Use DataFrame.drop and pass it a Series of index labels:
In [65]: df
Out[65]:
one two
one 1 4
two 2 3
three 3 2
four 4 1
In [66]: df.drop(df.index[[1,3]])
Out[66]:
one two
one 1 4
three ...
Execute command on all files in a directory
...ich need to be run through a program. The program outputs the results to standard out. I need a script that will go into a directory, execute the command on each file, and concat the output into one big output file.
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What is the difference between mocking and spying when using Mockito?
...rtial mocks.
Before release 1.8 spy() was not producing real partial mocks and it was confusing for some users. Read more about spying: here or in javadoc for spy(Object) method.
callRealMethod() was introduced after spy(), but spy() was left there of course, to ensure backward compatibility.
Other...
Utility classes are evil? [closed]
... good object-oriented design, most classes should represent a single thing and all of its attributes and operations. If you are operating on a thing, that method should probably be a member of that thing.
However, there are times when you can use utility classes to group a number of methods togethe...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
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Finding the mode of a list
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You can use the max function and a key. Have a look at python max function using 'key' and lambda expression.
max(set(lst), key=lst.count)
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MVC pattern on Android
...it possible to implement the model–view–controller pattern in Java for Android?
21 Answers
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How to design a multi-user ajax web application to be concurrently safe
...ges to objects while at the same time being able to deliver updates timely and efficiently, detecting and resolving conflicts like the one above.
If I was in your shoes I would develop something like this:
1. Server-Side:
Determine a reasonable level at which you would define what I'd call "atom...
MySQL/Amazon RDS error: “you do not have SUPER privileges…”
...o load your dump file without errors.
If you want to ignore these errors, and load the rest of the dump file, you can use the -f option:
mysql -f my_database -u my_username -p -h
my_new_database.xxxxxxxxx.us-east-1.rds.amazonaws.com < my_database.sql
The -f will report errors, but will cont...
How can I get the version defined in setup.py (setuptools) in my package?
...o have thought you were asking), put the version string in a separate file and read that file's contents in setup.py.
You could make a version.py in your package with a __version__ line, then read it from setup.py using execfile('mypackage/version.py'), so that it sets __version__ in the setup.py n...