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fork() branches more than expected?
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245
The fork() primitive often stretches the imagination. Until you get a feel for it, you should...
How to loop through all but the last item of a list?
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324
for x in y[:-1]
If y is a generator, then the above will not work.
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Maven check for updated dependencies in repository
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287
The Maven Versions plugin and its display-dependency-updates mojo are what you're looking for:...
Appending an element to the end of a list in Scala
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List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
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Moving matplotlib legend outside of the axis makes it cutoff by the figure box
...plotlib.pyplot as plt
import numpy as np
plt.gcf().clear()
x = np.arange(-2*np.pi, 2*np.pi, 0.1)
fig = plt.figure(1)
ax = fig.add_subplot(111)
ax.plot(x, np.sin(x), label='Sine')
ax.plot(x, np.cos(x), label='Cosine')
ax.plot(x, np.arctan(x), label='Inverse tan')
handles, labels = ax.get_legend_hand...
How to get subarray from array?
I have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex) , that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4] .
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How to create an object for a Django model with a many to many field?
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248
You cannot create m2m relations from unsaved objects. If you have the pks, try this:
sample_o...
Unpacking, extended unpacking and nested extended unpacking
...et's see how it works for a slightly more complex example:
(a,b), c, = [1,2],'this' # a = '1', b = '2', c = 'this'
Applying the above rules, we get
((a, b), c) = ((1, 2), ('t', 'h', 'i', 's'))
But now it's clear from the structure that 'this' won't be unpacked, but assigned directl...
How do I write data into CSV format as string (not file)?
I want to cast data like [1,2,'a','He said "what do you mean?"'] to a CSV-formatted string.
6 Answers
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How do I interpret precision and scale of a number in a database?
I have the following column specified in a database: decimal(5,2)
3 Answers
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