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How to say “should_receive” more times in RSpec
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This is outdated. Please check Uri's answer below
for 2 times:
Project.should_receive(:find).twice.with(@project).and_return(@project)
for exactly n times:
Project.should_receive(:find).exactly(n).times.with(@project).and_return(@project)
for at least n times:
Project.shoul...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
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I guess what you need is np.set_printoptions(suppress=True), for details see here:
http://pythonquirks.blogspot.fr/2009/10/controlling-printing-in-numpy.html
For SciPy.org numpy documentation, which includes all function parameters (suppress isn't detailed in the above link), see here:...
Best way to concatenate List of String objects? [duplicate]
...Java API and very unlikely to change, there's a chance it could. It's far more reliable to implement this yourself (loops, StringBuilders, recursion whatever you like better).
Sure this approach may seem "neater" or more "too sweet" or "money" but it is, in my opinion, a worse approach.
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Count number of occurences for each unique value
...= rep(c(1,2, 2, 2), 25)
table(dummyData)
# dummyData
# 1 2
# 25 75
## or another presentation of the same data
as.data.frame(table(dummyData))
# dummyData Freq
# 1 1 25
# 2 2 75
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How to center buttons in Twitter Bootstrap 3?
I am building a form in Twitter Bootstrap but I'm having issues with centering the button below the input in the form. I have already tried applying the center-block class to the button but that didn't work. How should I fix this?
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How do I modify a MySQL column to allow NULL?
...mns are nullable by default. As long as the column is not declared UNIQUE or NOT NULL, there shouldn't be any problems.
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Using python map and other functional tools
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def maptest(foo):
print foo, bars
map(maptest, foos)
With your original maptest function you could also use a lambda function in map:
map((lambda foo: maptest(foo, bars)), foos)
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Using module 'subprocess' with timeout
...s the Python code to run an arbitrary command returning its stdout data, or raise an exception on non-zero exit codes:
29...
How do I set a column value to NULL in SQL Server Management Studio?
...tement where you could:
Update table set ColumnName = NULL where [Filter for record here]
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How do I parallelize a simple Python loop?
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Using multiple threads on CPython won't give you better performance for pure-Python code due to the global interpreter lock (GIL). I suggest using the multiprocessing module instead:
pool = multiprocessing.Pool(4)
out1, out2, out3 = zip(*pool.map(calc_stuff, range(0, 10 * offset, of...