Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.
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# Uses Bluez for Linux | |
# | |
# sudo apt-get install bluez python-bluez | |
# | |
# Taken from: https://people.csail.mit.edu/albert/bluez-intro/x232.html | |
# Taken from: https://people.csail.mit.edu/albert/bluez-intro/c212.html | |
import bluetooth | |
def receiveMessages(): |
As of January 2018, Raspbian does not yet include the latest Python release, Python 3.6. This means we will have to build it ourselves, and here is how to do it. There is also an ansible role attached that automates it all for you.
Install the required build-tools (some might already be installed on your system).
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Copyright 2020 Aubrey Taylor | |
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTH |
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from IPython.display import display, HTML | |
display(HTML(data=""" | |
<style> | |
div#notebook-container { width: 95%; } | |
div#menubar-container { width: 65%; } | |
div#maintoolbar-container { width: 99%; } | |
</style> | |
""")) |
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# | |
# Example from code built on the Flask web framework (and Werkzeug) | |
# Accepts uploading a photo file in the 'photo' form member, then | |
# copies it into a memory byte array and converts it to a numpy array | |
# which in turn can be decoded by OpenCV. | |
# | |
# Beware that this increases the memory pressure and you should | |
# configure a max request size before doing so. | |
# | |
# It saves a round-trip to a temporary file, though. |
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1. go to https://sslvpn.demo.sonicwall.com/cgi-bin/welcome | |
2. log in with demo/password | |
3. click on NetExtender icon, this will download a tar.gz with the client | |
4. sudo ln -s /lib/x86_64-linux-gnu/libssl.so.1.0.0 /usr/lib/libssl.so.6 | |
5. sudo ln -s /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /usr/lib/libcrypto.so.6 | |
6. un-tar the client, make install script executable and launch install |
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Standard practices say no non-root process gets to talk to the Internet on a port less than 1024. How, then, could I get Node talking on port 80 on EC2? (I wanted it to go as fast as possible and use the smallest possible share of my teeny tiny little micro-instance's resources, so proxying through nginx or Apache seemed suboptimal.)
Alter the port the script talks to from 8000 to 80:
}).listen(80);
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