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Understanding slice notation
...ared to indexing, Python slicing is bizarrely error-proof:
>>> p[100:200]
[]
>>> p[int(2e99):int(1e99)]
[]
This can come in handy sometimes, but it can also lead to somewhat strange behavior:
>>> p
['P', 'y', 't', 'h', 'o', 'n']
>>> p[int(2e99):int(1e99)] =...
How to prevent a dialog from closing when a button is clicked
...
Daniel Nugent
39.6k1313 gold badges100100 silver badges123123 bronze badges
answered Oct 3 '11 at 14:34
Tom BollwittTom Bollwitt
...
Cannot delete directory with Directory.Delete(path, true)
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user247702
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answered Nov 30 '08 at 22:24
Jeremy EdwardsJeremy Edwards
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What does if __name__ == “__main__”: do?
...re functionB")
def functionB():
print("Function B {}".format(math.sqrt(100)))
print("before __name__ guard")
if __name__ == '__main__':
functionA()
functionB()
print("after __name__ guard")
Special Variables
When the Python interpreter reads a source file, it first defines a few specia...
How to change the output color of echo in Linux
...='\033[1;97m' # White
# High Intensity backgrounds
On_IBlack='\033[0;100m' # Black
On_IRed='\033[0;101m' # Red
On_IGreen='\033[0;102m' # Green
On_IYellow='\033[0;103m' # Yellow
On_IBlue='\033[0;104m' # Blue
On_IPurple='\033[0;105m' # Purple
On_ICyan='\033[0;106m' # Cyan
On_IWhi...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
...tions. It may save time up front, but people have to realize that may cost 100 fold down the line trying to fix some obscure problem only a handful of people truly have enough knowledge to solve.
– kemiller2002
Oct 7 '09 at 19:17
...
How do I integrate Ajax with Django applications?
...els
class Contact(models.Model):
name = models.CharField(max_length = 100)
email = models.EmailField()
message = models.TextField()
timestamp = models.DateTimeField(auto_now_add = True)
def __str__(self):
return self.name
forms.py
Create the form for the above model....
What characters are allowed in an email address?
...
+100
See RFC 5322: Internet Message Format and, to a lesser extent, RFC 5321: Simple Mail Transfer Protocol.
RFC 822 also covers email a...
Why is processing a sorted array faster than processing an unsorted array?
... I'm thinking of situation of array that looks like: [1,2,3,4,5,...998,999,1000, 3, 10001, 10002] ? will this obscure 3 increase running time? Will it be as long as unsorted array?
– Filip Bartuzi
Nov 9 '14 at 13:37
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What are the mathematical/computational principles behind this game?
...
Brilliant. I'm going to need to read this 100 more times to try to figure out how to generate card sets in Python...
– Jared
Apr 2 '13 at 13:17
...