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Any reason not to use '+' to concatenate two strings?
...B','C','D','E','F']
>>> myl2=[chr(random.randint(65,90)) for i in range(0,10000)]
Lets create two functions, UseJoin and UsePlus to use the respective join and + functionality.
>>> def UsePlus():
return [myl[i] + myl[i + 1] for i in range(0,len(myl), 2)]
>>> def Us...
Replace values in list using Python [duplicate]
...
Here's another way:
>>> L = range (11)
>>> map(lambda x: x if x%2 else None, L)
[None, 1, None, 3, None, 5, None, 7, None, 9, None]
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How far can memory leaks go?
...nly thing you need to worry about when dealing with new/delete (instead of raw malloc/free). The memory that's allocated in new may get reclaimed, but things that may be done in the destructors of the objects will not happen. Perhaps the destructor of some class writes a sentinel value into a file...
HTTP status code for a partial successful request
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What about using 206 Partial Content. I know 206 is more about ranges, but what if it could indicate a partially successfully request?
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Difference between del, remove and pop on lists
...n>", line 1, in <module>
IndexError: list assignment index out of range
>>> a.pop(7)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IndexError: pop index out of range
...
How can I recover the return value of a function passed to multiprocessing.Process?
...sing.Manager()
return_dict = manager.dict()
jobs = []
for i in range(5):
p = multiprocessing.Process(target=worker, args=(i,return_dict))
jobs.append(p)
p.start()
for proc in jobs:
proc.join()
print return_dict.values()
...
How to generate a random string of a fixed length in Go?
...func RandStringRunes(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letterRunes[rand.Intn(len(letterRunes))]
}
return string(b)
}
2. Bytes
If the characters to choose from and assemble the random string contains only the uppercase and lowercase letters of t...
Random / noise functions for GLSL
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How do you use vec2 co? is it the range? seed?
– Ross
Nov 17 '12 at 17:07
12
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How to retrieve all keys (or values) from a std::map and put them into a vector?
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There is a boost range adaptor for this purpose:
#include <boost/range/adaptor/map.hpp>
#include <boost/range/algorithm/copy.hpp>
vector<int> keys;
boost::copy(m | boost::adaptors::map_keys, std::back_inserter(keys));
There...
How to pick a new color for each plotted line within a figure in matplotlib?
... to plot
#version 1:
color=cm.rainbow(np.linspace(0,1,n))
for i,c in zip(range(n),color):
plt.plot(x, y,c=c)
#or version 2:
color=iter(cm.rainbow(np.linspace(0,1,n)))
for i in range(n):
c=next(color)
plt.plot(x, y,c=c)
Example of 2:
...