path issues everywhere

[matiasandina]

There is a big number of scripts that use direct path, hardcoded. This will create portability issues

@melfnie Can you complete the list here of files that have hardcoded paths?

• GUI.py
• send_thermal_data.py
• send_movement_data.py
• rpi_network_app/app.R
• opt_flow.py

[matiasandina]

At the moment, the GUI.py has hardcoded the path to homecage_quantification/
This seems to be the only thing to work and actually put the proper working directory.

[matiasandina]

In GUI.py

We can change this line to

homecage_quantification/GUI.py

Line 304 in f5413cc

os.chdir("/home/pi/homecage_quantification")

script_path = os.path.abspath(__file__)
script_dir = os.path.dirname(script_path) 
os.chdir(script_dir)