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How to sort a list of objects based on an attribute of the objects?
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# To sort the list in place...
ut.sort(key=lambda x: x.count, reverse=True)
# To return a new list, use the sorted() built-in function...
newlist = sorted(ut, key=lambda x: x.count, reverse=True)
More on sorting by keys.
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Restore the state of std::cout after manipulating it
...++ is RAII, especially in a case like this one!
– Alexis Wilke
Feb 16 '15 at 2:45
4
@Alexis I 100...
How do I plot in real-time in a while loop using matplotlib?
...rom 2011-11-14):
import numpy as np
import matplotlib.pyplot as plt
plt.axis([0, 10, 0, 1])
for i in range(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show()
Note some of the changes:
Call plt.pause(0.05) to both draw the new data and it runs the GUI's even...
vim repeat find next character 'x'
I often navigate in vim by f x to find next occurrence of character 'x',
but overlook that there is a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position.
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How do you programmatically set an attribute?
Suppose I have a python object x and a string s , how do I set the attribute s on x ? So:
4 Answers
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Count number of occurrences of a pattern in a file (even on same line)
...c -l
2
Two matches are found in the line (a{foo}bar{foo}bar) because we explicitly asked to find every occurrence (-o). Every occurence is printed on a separate line, and wc -l just counts the number of lines in the output.
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C# Linq Group By on multiple columns [duplicate]
...ing the final comma (after FavoriteColor) is on purpose - it is legal syntax and it enables easier refactoring of code. The choice of using gcs rather than gc for the grouping variable is also on purpose - it shows me that it is a "group of many c's".
– Enigmativity
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Compare two objects' properties to find differences?
...second.GetType() != firstType)
{
return false; // Or throw an exception
}
// This will only use public properties. Is that enough?
foreach (PropertyInfo propertyInfo in firstType.GetProperties())
{
if (propertyInfo.CanRead)
{
object firstValue ...
Python module for converting PDF to text [closed]
Is there any python module to convert PDF files into text? I tried one piece of code found in Activestate which uses pypdf but the text generated had no space between and was of no use.
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`static` keyword inside function?
... seen before. I did some initial looking in the php manual, but it didn't explain these examples.
7 Answers
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