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printf with std::string?
My understanding is that string is a member of the std namespace, so why does the following occur?
7 Answers
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How to do a scatter plot with empty circles in Python?
... following:
import matplotlib.pyplot as plt
import numpy as np
x = np.random.randn(60)
y = np.random.randn(60)
plt.scatter(x, y, s=80, facecolors='none', edgecolors='r')
plt.show()
Note: For other types of plots see this post on the use of markeredgecolor and markerfacecolor.
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Use logging print the output of pprint
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Use pprint.pformat to get a string, and then send it to your logging framework.
from pprint import pformat
ds = [{'hello': 'there'}]
logging.debug(pformat(ds))
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Blocks on Swift (animateWithDuration:animations:completion:)
...in. That tells the compiler that this closure takes a Bool labeled 'value' and returns void.
For reference, if you wanted to write a closure that returned a bool the syntax would be
{(value: Bool) -> bool in
//your stuff
}
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Numpy array assignment with copy
For example, if we have a numpy array A , and we want a numpy array B with the same elements.
3 Answers
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How to test an Android Library Project
I am writing an Android Library Project basing on Android Bitmap class (call it AndroindLib) which contains only utility class (no activity). I tried to test it using Android JUnit, but it keeps complaining that can't find the AnroidLib.apk
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Symbol for any number of any characters in regex?
...n (any whitespace or any non-whitespace) as many times as possible down to and including 0.
[\s\S]*
This expression will match as few as possible, but as many as necessary for the rest of the expression.
[\s\S]*?
For example, in this regex [\s\S]*?B will match aB in aBaaaaB. But in this regex...
cd into directory without having permission
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Enter super user mode, and cd into the directory that you are not permissioned to go into. Sudo requires administrator password.
sudo su
cd directory
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YAML Multi-Line Arrays
...['string1', 'string2', 'string3',
'string4', 'string5',
'string6']
and even have multi-line strings in single-line arrays:
key: ['string1', 'long
string', 'string3', 'string4', 'string5', 'string6']
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Grep regex NOT containing string
...p to check against a syslog file. They are usually matching an IP address and log entry;
3 Answers
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