Python script won't run over SSH but will run locally - python-3.x

Question

I am writing a small application to monitor some temperatures using a raspberry pi. I would like to be able to remotely start or restart the monitoring script remotely. I connect via SSH, cd to the .py file's directory, and then i "python temp_controller.py &". This gives me an error importing something. "from w1thermsensor import W1ThermSensor". This error does not occur when running the script from Thonny directly on the Pi.
"Main" file.
import Send_Email
import Temp_Sensor
import os
import glob
import math
import timefuncs
import apc_controls
program_start_time = timefuncs.get_time() #Used to determine how long the program has been running.
printable_start_time = timefuncs.get_printable_time()
filename = ("Temperature Data " + printable_start_time.strftime("%c") + ".txt")
state = 0 #Used to switch between activities and determine if there has been an error.
temps = [0,0,0,0,0,0,0,0],[0,0] #Holds temperature data
over_temp_counter = 0 #variable for tracking consecutive over temp values
newdir = os.getcwd() + "/temps files"; os.chdir(newdir) #Changes directory to storage location for temperature files
with open(filename, "w+") as tempsfile:
tempsfile.write("Long Term Temperature Monitor Project\r\n")
tempsfile.write("Date-Time,Sensor ID,Sensor Name,Temperature\r\n")
test = 0
while True:
if (math.floor(timefuncs.get_time())) % 30 == 0 and state == 0:
print("sample")
state = 1 #stops this from executing multiple times per second
length = Temp_Sensor.read_sensors(temps) #gets number of sensors and sensor data with IDs
#Writes data line to log file
now = timefuncs.get_printable_time()
tempsfile.write("%s"%now)
i = 0
while i < length:
print("Sensor %s has temperature %.2f" % (temps[i][0], temps[i][1]))
tempsfile.write(",%s"%temps[i][0])
tempsfile.write(",%s"%Temp_Sensor.get_sensor_name(temps[i][0]))
tempsfile.write(",%f"%temps[i][1])
i += 1
tempsfile.write("\r\n")
#Checks temperatures to see if over temp
i = 0
over = False
while i < length:
if Temp_Sensor.check_temp(temps[i][1]):#if over temp
over = True
if over_temp_counter > 1:#ensures there is not a single fluke reading that causes error
print("over temp")
tempsfile.close()#close log file
Send_Email.send_fail_email(filename)#send email with log file
apc_controls.turn_off_apc()#shut down power to test
tempsfile = open("(After error" + printable_start_time.strftime("%c") + ".txt", "w+")
else:
print("increment over")
over_temp_counter += 1
i+=1
if over == False:
over_temp_counter = 0
elif (math.floor(timefuncs.get_time())) % 30 != 0:#if not 30 second increment reset blocker used to prevent the 30 secodn operations from occuring more than once
state = 0
File with the error.
import time
import glob
from w1thermsensor import W1ThermSensor
def read_sensors(data):
i = 0
j = 0
for sensor in W1ThermSensor.get_available_sensors([W1ThermSensor.THERM_SENSOR_DS18B20]):
data[i][j] = sensor.id
j+=1
data[i][j] = sensor.get_temperature()
i+=1
j = 0
return i
def get_sensor_name(id):
if id == "000009ac911f":
return "Sensor 1"
elif id == "000009aecc36":
return "Sensor 2"
def check_temp(value):
if value > 80:
return 1
else:
return 0

Answer 1

I guess on your local machine you did something like pip install w1thermsensor, right? You need to install the w1thermsensor dependency on your Raspberry pi too