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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...t's because
permissions are set as an octal integer, and Python automagically
treats any integer with a leading zero as octal. So os.chmod("file",
484) (in decimal) would give the same result.
What you are doing is passing 664 which in octal is 1230
In your case you would need
os.chmod("/...
why is plotting with Matplotlib so slow?
...
First off, (though this won't change the performance at all) consider cleaning up your code, similar to this:
import matplotlib.pyplot as plt
import numpy as np
import time
x = np.arange(0, 2*np.pi, 0.01)
y = np.sin(x)
fig, axes = plt.subplots(nrows=6)
styles = ['r-', 'g-', 'y-...
What are the primary differences between Haskell and F#? [closed]
...et for comparisons between F# and Haskell but haven't found anything really definitive. What are the primary differences and why would I want to choose one over the other?
...
Differences in auto-unboxing between Java 6 vs Java 7
...omparison to the same section in the Java 5/6 JLS, probably to clarify the allowed conversions.
Java 7 JLS says
An expression of a reference type may undergo casting conversion to a primitive type without error, by unboxing conversion.
Java 5/6:
A value of a reference type can be cast to...
When should the xlsm or xlsb formats be used?
...
They're all similar in that they're essentially zip files containing the actual file components. You can see the contents just by replacing the extension with .zip and opening them up. The difference with xlsb seems to be that the ...
Binding multiple events to a listener (without JQuery)?
...r for two different events on the same element. You could write your own small function to do the job, e.g.:
/* Add one or more listeners to an element
** @param {DOMElement} element - DOM element to add listeners to
** @param {string} eventNames - space separated list of event names, e.g. 'click c...
Converting String to “Character” array in Java
...Points())
map each 'character' value to Character (you need to cast to actually say that its really a char, and then Java will box it automatically to Character)
get the resulting array by calling toArray()
share
|...
Checking from shell script if a directory contains files
...
The solutions so far use ls. Here's an all bash solution:
#!/bin/bash
shopt -s nullglob dotglob # To include hidden files
files=(/some/dir/*)
if [ ${#files[@]} -gt 0 ]; then echo "huzzah"; fi
...
Cannot create or edit Android Virtual Devices (AVD) from Eclipse, ADT 22.6
... ONLY, THESE BUGS SUBSEQUENTLY FIXED IN FOLLOWING BUILDS
Download and install new ADT v22.6.1 from here (zip) or use SDK manager to update
Seems like some bug from Google side, this problem found after "ADT 22.6" update. Widely reported on "Android Open Source Project - Issue Tracker" and nobody p...
Rearrange columns using cut
...
This is very often inefficient. Typically, you will find that the corresponding Awk script is a lot faster, for example. You should also be careful to quote the values "$col2" and "$col1" -- there could be shell metacharacters or other shenanigans in the data.
...