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Why does Python print unicode characters when the default encoding is ASCII?
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104
Thanks to bits and pieces from various replies, I think we can stitch up an explanation.
By ...
Unpacking, extended unpacking and nested extended unpacking
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115
My apologies for the length of this post, but I decided to opt for completeness.
Once you kno...
How to copy a dictionary and only edit the copy
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Python never implicitly copies objects. When you set dict2 = dict1, you are making them refer to the same exact dict object, so when you mutate it, all references to it keep referring to the object in its current state.
If you want to copy the dict (which is rare), you have to do so expli...
How to properly assert that an exception gets raised in pytest?
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11 Answers
11
Active
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
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1062
With the Java optional package or Oracle JDK installed,
adding one of the following lines t...
Determine if a function exists in bash
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13 Answers
13
Active
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Add Variables to Tuple
...tion. However, you can concatenate or slice them to form new tuples:
a = (1, 2, 3)
b = a + (4, 5, 6) # (1, 2, 3, 4, 5, 6)
c = b[1:] # (2, 3, 4, 5, 6)
And, of course, build them from existing values:
name = "Joe"
age = 40
location = "New York"
joe = (name, age, location)
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How do I filter query objects by date range in Django?
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Use
Sample.objects.filter(date__range=["2011-01-01", "2011-01-31"])
Or if you are just trying to filter month wise:
Sample.objects.filter(date__year='2011',
date__month='01')
Edit
As Bernhard Vallant said, if you want a queryset which ex...
What's the (hidden) cost of Scala's lazy val?
...$0;
private String msg;
public String msg() {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
msg = "Lazy";
}
}
bitmap$0 = bitmap$0 | 1;
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Algorithm to find Largest prime factor of a number
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134
Actually there are several more efficient ways to find factors of big numbers (for smaller one...