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Matplotlib (pyplot) savefig outputs blank image
...d before plt.show method
plt.show()
def test_draw():
lst_iter = range(100)
lst_loss = [0.01 * i + 0.01 * i ** 2 for i in xrange(100)]
# lst_loss = np.random.randn(1, 100).reshape((100, ))
lst_acc = [0.01 * i - 0.01 * i ** 2 for i in xrange(100)]
# lst_acc = np.random.randn...
delete map[key] in go?
...
Strangely enough,
package main
func main () {
var sessions = map[string] chan int{};
delete(sessions, "moo");
}
seems to work. This seems a poor use of resources though!
Another way is to check for existence and us...
Change x axes scale in matplotlib
...ody of your question.
A little preamble, so that my naming doesn't seem strange:
import matplotlib
from matplotlib import rc
from matplotlib.figure import Figure
ax = self.figure.add_subplot( 111 )
As has been mentioned you can use ticklabel_format to specify that matplotlib should use scientifi...
Understanding the Gemfile.lock file
...mfile would not provide the same guarantee, because gems usually declare a range of versions for their dependencies.
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Hashing a file in Python
...n't that useful here - common values are 4 KiB or 8 KiB, something in that range, i.e. something much smaller than the 128 KiB - 128 KiB is generally a good choice. mmap doesn't help much in our use case as we sequentially read the complete file from front to back. mmap has advantages when the acces...
How does Google calculate my location on a desktop?
...ou need is good seeding. After that, it extends in "50 meters chunks" (the range of a newly found wifi connection).
Of course, if you really want the system go banana, you can start exchanging wifi routers around the globe with fellow revolutionaries of the no-global-positioning movement.
...
Do browsers send “\r\n” or “\n” or does it depend on the browser?
...a few of those around. The Unicode standard (section 5.8) specifies a wide range of character sequences that should be recognized as line terminators; there's a list of them here.)
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Default value in Go's method
...args ...interface{}) string {
a := "default-a"
b := 5
for _, arg := range args {
switch t := arg.(type) {
case string:
a = t
case int:
b = t
default:
panic("Unknown argument")
}
}
return fmt.Sprintf("%s%d", a, b)
}
...
What is the fastest way to send 100,000 HTTP requests in Python?
...lt(status, url):
print status, url
q = Queue(concurrent * 2)
for i in range(concurrent):
t = Thread(target=doWork)
t.daemon = True
t.start()
try:
for url in open('urllist.txt'):
q.put(url.strip())
q.join()
except KeyboardInterrupt:
sys.exit(1)
This one is sligh...
How do you determine the size of a file in C?
...eturn long int from ftell(). (unsigned long) casting does not improve the range as already limited by the function. ftell() return -1 on error and that get obfuscated with the cast. Suggest fsize() return the same type as ftell().
– chux - Reinstate Monica
J...