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Return multiple columns from pandas apply()
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122
This is an old question, but for completeness, you can return a Series from the applied functio...
Round to 5 (or other number) in Python
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312
I don't know of a standard function in Python, but this works for me:
Python 2
def myround(x, ...
What is the easiest way to remove the first character from a string?
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234
I kind of favor using something like:
asdf = "[12,23,987,43"
asdf[0] = ''
p asdf
# >>...
How to convert floats to human-readable fractions?
...e 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
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What's the difference between echo, print, and print_r in PHP?
... or false and '':
array(4) {
[0]=>
int(0)
[1]=>
float(0)
[2]=>
bool(false)
[3]=>
string(0) ""
}
Array
(
[0] => 0
[1] => 0
[2] =>
[3] =>
)
share
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Difference between DateTime and Time in Ruby
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Newer versions of Ruby (2.0+) do not really have significant differences between the two classes. Some libraries will use one or the other for historical reasons, but new code does not necessarily need to be concerned. Picking one for consistency is...
Map Tiling Algorithm
...are already found in the first square. This means that there in total are 12 different cases we must distinguish between.
Now, looking at one edge tile we can determine which way the boundary turns by looking at its four closest neighbour tiles. Marking an edge tile with X just as above we have the...
How do I calculate someone's age in Java?
...
28 Answers
28
Active
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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...ve the same result.
What you are doing is passing 664 which in octal is 1230
In your case you would need
os.chmod("/tmp/test_file", 436)
[Update] Note, for Python 3 you have prefix with 0o (zero oh). E.G, 0o666
sha...