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Plotting time in Python with Matplotlib
... using pyplot.plot (after parsing them from their string representation). (Tested with matplotlib versions 1.2.0 and 1.3.1.)
Example:
import datetime
import random
import matplotlib.pyplot as plt
# make up some data
x = [datetime.datetime.now() + datetime.timedelta(hours=i) for i in range(12)]
y ...
How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
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USE CALLOC INSTEAD OF MALLOC!!!! I was using this code to test if certain pixels were transparent and I was getting back bogus information where pixels were meant to be transparent because the memory wasn't cleared first. Using calloc(width*height, 4) instead of malloc did the trick...
Revert a range of commits in git
...using) in the reference: git revert -n master~5..master~2, it says fifth latest commit included. But master~5 is actually 6th latest commit. See revision selection in git docs for detailed info about .. notation :-)
– Honza Haering
Feb 3 '17 at 15:09
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Trying to start a service on boot on Android
...OOT_POWERON" />
</intent-filter>
</receiver>
How to test BOOT_COMPLETED without restart emulator or real device?
It's easy. Try this:
adb -s device-or-emulator-id shell am broadcast -a android.intent.action.BOOT_COMPLETED
How to get device id? Get list of connected devices ...
AngularJS $http, CORS and http authentication
...tp({
url: 'url of service',
method: "POST",
data: {test : name },
withCredentials: true,
headers: {
'Content-Type': 'application/json; charset=utf-8'
}
});
And and on server side you have to put headers to this is example for...
system(“pause”); - Why is it wrong?
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Sometimes an Ungood Practice™ is needed for quick tests.... what we call "quick and dirty"
– Michael Haephrati
Jan 11 '18 at 19:04
add a comment
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Assigning a variable NaN in python without numpy
...only doing one or two assignments of nan total, then using numpy.nan is fastest.
– Daniel Goldfarb
Apr 12 '19 at 17:45
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Eclipse “Invalid Project Description” when creating new project from existing source
...e and rename project with old name. Eclipse will rename folder too.
P.S. Tested on Eclipse Juno.
Edit: Many times have passed since this answer and new Eclipse and Android SDK arrived. They have no much more problems during importing existing projects. The only thing one has to consider before im...
ValueError: math domain error
I was just testing an example from Numerical Methods in Engineering with Python .
4 Answers
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How to switch a user per task or set of tasks?
...ork too.
---
- hosts: webservers
remote_user: root
tasks:
- name: test connection
ping:
remote_user: yourname
See http://docs.ansible.com/playbooks_intro.html#hosts-and-users
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