Environment Raspberry Pi 2 raspbian-jessie-lite Windows 8.1 PuTTY 0.66 (SSH) Issue Can’t get cron to execute a python script with sudo. The script deals with GPIO input so it should be called with sudo. The program is supposed to save temperature and humidity to files but cat temp.txt and cat humid.txt …
Tag: python
why matplotlib is not operating?
I want to use matplotlib. I have installed it as: and in terminal I have: now I want to use it. so in pycharm terminal I have: What is the problem please? can you help me solve it? Thank you very much for your help. Answer You are in shell not in python executing environment.
Creating Macros With Python interfacing with Libinput
I’m running Fedora 22; and I’m trying to create a very simple keyboard macro script with uinput that will work across display servers (and in console). Following this post I figured out how to do this successfully in console and with evdev; However I also want to be able to do this through libinpu…
ACID Transactions at the File System
Background: I am getting a temperature float from an arduino via a serial connection. I need to be able to cache this temperature data every 30 seconds for other applications (e.g. web, thermostat controller) to access and not overload the serial connection. Currently I cache this data to RAM as a file in /ru…
How to let linux(raspberry) run python script when plugin power?
I have a python script(namely /home/pi/x.py). And I have tried a lot of ways to let the program, some thing such as: (I am thinking am I right here(Provides: Python)?) I have modified this bash from its original form, and put it in sudo chmod +x /etc/init.d/mystart sudo update-rc.d mystart defaults However, w…
How would a Python script running on Linux call a routine in a Python script running under Wine?
I have a Python (3) script running on Linux, referred to as the main script, which has to call a routine from a proprietary DLL. So far, I have solved this with Wine using the following construct: The script dll_call.py is executed by a Windows Python (3) interpreter installed under Wine. It dumps the return …
Python Wlan Manager
Is there a way in python to check whether a Wlan router is accessible? Something like I give as input the SSID and the password and get as response if it has worked or not? Answer Check out the wireless library.
Python how to pass in an optional filename parameter when running a script to process a file
I have a python script that processes an XML file each day (it is transferred via SFTP to a remote directory, then temporarily copied to a local directory) and stores its information in a MySQL database. One of my parameters for the file is set to “date=today” so that the correct file is processed…
Detect wireless devices connected to Raspberry Pi in python on Linux
In my python code I need to get the list of “physical” WiFi network devices connected to Raspberry Pi I’ve been doing this by calling: and then extracting all the data I need from raw_output It works ok, but in iw help it says that Do NOT screenscrape this tool, we don’t consider its o…
Convert int to hex and make terminal read it as hex
I am trying to convert an integer to hex. I have found answers that address this problem like this, though they do not work for me. What i mean: if i take this: and i run it from console with python myfile.py then the output is something like this: ���t$���ʈ�Z), which is what i want (the output has been read…