Raspi Commands via Python (VS Code) Script

AS4188 · (This post was last modified: Oct-21-2020, 07:41 AM by buran.)

The following Code is what I have written to access my raspi and input a series of commands to run sequentially. What i cannot figure out, is how to make the "snapshot.py" command pause, and allow me to do the start and capture commands for the photo to show up on the device, when i input the command individually into the raspi it works and stores the photo in the proper directory but not when i have this running. I also need to make sure the results of the commands/onboarding tests get stored onto a txt file. Any advice is greatly appreciated, I am new to the raspi world so please all critique is welcome. Thank you

import paramiko, subprocess


p = paramiko.SSHClient()
p.set_missing_host_key_policy(paramiko.AutoAddPolicy())
p.connect("10.0.0.65", port=22, username="dev", password="Production1!")
stdin, stdout, stderr = p.exec_command('ls')
opt = stdout.readlines()
opt = "".join(opt)
print(opt)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo raspi-config')
opt0 = stdout.readlines()
opt0 = "".join(opt0)
print(opt0)
input("press enter to continue")


stdin, stdout, stderr = p.exec_command('sed -n 43p /proc/cpuinfo')
opt1 = stdout.readlines()
opt1 = "".join(opt1)
print(opt1)
input("press enter to continue")


stdin, stdout, stderr = p.exec_command('sudo nano /etc/hostname')
opt2 = stdout.readlines()
opt2 = "".join(opt2)
print(opt2)
input("press enter to continue")


stdin, stdout, stderr = p.exec_command('sudo nano /etc/hosts')
opt3 = stdout.readlines()
opt3 = "".join(opt3)
print(opt3)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo touch ../../full_log.sh')
opt4 = stdout.readlines()
opt4 = "".join(opt4)
print(opt4)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo touch ../../live_log.sh')
opt5 = stdout.readlines()
opt5 = "".join(opt5)
print(opt5)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo touch ../../update.sh')
opt6 = stdout.readlines()
opt6 = "".join(opt6)
print(opt6)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo touch ../../watch_and_update.sh')
opt7 = stdout.readlines()
opt7 = "".join(opt7)
print(opt7)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('echo sudo journalctl -u spiderentry.service | sudo tee ../../full_log.sh')
opt8 = stdout.readlines()
opt8 = "".join(opt8)
print(opt8)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('echo sudo journalctl -f -u spiderentry.service| sudo tee ../../live_log.sh')
opt9 = stdout.readlines()
opt9 = "".join(opt9)
print(opt9)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../update.sh')
opt10 = stdout.readlines()
opt10 = "".join(opt10)
print(opt10)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../watch_and_update.sh')
opt11 = stdout.readlines()
opt11 = "".join(opt11)
print(opt11)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('echo sudo journalctl -f -u spiderentry.service | sudo tee -a ../../watch_and_update.sh')
opt12 = stdout.readlines()
opt12 = "".join(opt12)
print(opt12)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod +x ../../full_log.sh')
opt13 = stdout.readlines()
opt13 = "".join(opt13)
print(opt13)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod +x ../../live_log.sh')
opt14 = stdout.readlines()
opt14 = "".join(opt14)
print(opt14)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod +x ../../update.sh')
opt15 = stdout.readlines()
opt15 = "".join(opt15)
print(opt15)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod +x ../../watch_and_update.sh')
opt16 = stdout.readlines()
opt16 = "".join(opt16)
print(opt16)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('ssh-keygen -f ~/.ssh/id_rsa -t rsa -N "')
opt17 = stdout.readlines()
opt17 = "".join(opt17)
print(opt17)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('cat ~/.ssh/id_rsa.pub')
opt18 = stdout.readlines()
opt18 = "".join(opt18)
print(opt18)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('git clone [email protected]:SpiderDoorLLC/spiderkeypadpi.git')
opt19 = stdout.readlines()
opt19 = "".join(opt19)
print(opt19)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('cd spiderkeypadpi/services')
opt20 = stdout.readlines()
opt20 = "".join(opt20)
print(opt20)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod +x setup.sh')
opt21 = stdout.readlines()
opt21 = "".join(opt21)
print(opt21)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo ./setup.sh')
opt22 = stdout.readlines()
opt22 = "".join(opt22)
print(opt22)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo chmod -x setup.sh')
opt23 = stdout.readlines()
opt23 = "".join(opt23)
print(opt23)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('cd ../main')
opt24 = stdout.readlines()
opt24 = "".join(opt24)
print(opt24)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 serial_number.py')
opt25 = stdout.readlines()
opt25 = "".join(opt25)
print(opt25)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 relay.py')
opt26 = stdout.readlines()
opt26 = "".join(opt26)
print(opt26)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 snapshot.py')
opt27 = stdout.readlines()
opt27 = "".join(opt27)
print(opt27)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo rm 000*')
opt28 = stdout.readlines()
opt28 = "".join(opt28)
print(opt28)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 main.py')
opt29 = stdout.readlines()
opt29 = "".join(opt29)
print(opt29)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('cd spiderkeypadpi/services')
opt30 = stdout.readlines()
opt30 = "".join(opt30)
print(opt30)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 stop_services.py')
opt31 = stdout.readlines()
opt31 = "".join(opt31)
print(opt31)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('cd ../main ')
opt32 = stdout.readlines()
opt32 = "".join(opt32)
print(opt32)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 snapshot.py')
opt33 = stdout.readlines()
# # capture and end commands
# # report for photo or failure of camera
opt33 = "".join(opt33)
print(opt33)
input("press enter to continue")

stdin, stdout, stderr = p.exec_command('sudo python3 piezo.py')
opt34 = stdout.readlines()
opt34 = "".join(opt34)
print(opt34)

buran write Oct-21-2020, 07:41 AM:
Please, use proper tags when post code, traceback, output, etc. This time I have added tags for you.
See BBcode help for more info.

**buran** · (This post was last modified: Oct-21-2020, 07:54 AM by buran.)

Not exactly sure what you ask or what your problem is, but don't you see the repetitive code? why not just loop over the commands

import paramiko, subprocess

p = paramiko.SSHClient()
p.set_missing_host_key_policy(paramiko.AutoAddPolicy())
p.connect("10.0.0.65", port=22, username="dev", password="Production1!")

commands = ('ls', 'sudo raspi-config', 'sed -n 43p /proc/cpuinfo', 'sudo nano /etc/hostname',
            'sudo nano /etc/hosts', 'sudo touch ../../full_log.sh', 'sudo touch ../../live_log.sh',
            'sudo touch ../../update.sh', 'sudo touch ../../watch_and_update.sh', 
            'echo sudo journalctl -u spiderentry.service | sudo tee ../../full_log.sh', 
            'echo sudo journalctl -f -u spiderentry.service| sudo tee ../../live_log.sh', 
            'echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../update.sh', 
            'echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../watch_and_update.sh', 
            'echo sudo journalctl -f -u spiderentry.service | sudo tee -a ../../watch_and_update.sh', 
            'sudo chmod +x ../../full_log.sh', 'sudo chmod +x ../../live_log.sh', 'sudo chmod +x ../../update.sh', 
            'sudo chmod +x ../../watch_and_update.sh', 'ssh-keygen -f ~/.ssh/id_rsa -t rsa -N "', 
            'cat ~/.ssh/id_rsa.pub', 'git clone [email protected]:SpiderDoorLLC/spiderkeypadpi.git', 
            'cd spiderkeypadpi/services', 'sudo chmod +x setup.sh', 'sudo ./setup.sh', 
            'sudo chmod -x setup.sh', 'cd ../main', 'sudo python3 serial_number.py', 
            'sudo python3 relay.py', 'sudo python3 snapshot.py', 'sudo rm 000*', 
            'sudo python3 main.py', 'cd spiderkeypadpi/services', 'sudo python3 stop_services.py', 
            'cd ../main ', 'sudo python3 snapshot.py', 'sudo python3 piezo.py')

for command in commands:
    stdin, stdout, stderr = p.exec_command(command)
    print("".join(stdout.readlines()))
    input("press enter to continue")

225 lines into just 27 lines

**buran** · (This post was last modified: Oct-21-2020, 08:03 AM by buran.)

exec_command being non-blocking call, maybe look at https://stackoverflow.com/a/28486051/4046632

AS4188 · (This post was last modified: Oct-21-2020, 03:27 PM by AS4188.)

(Oct-21-2020, 07:54 AM)buran Wrote: Not exactly sure what you ask or what your problem is, but don't you see the repetitive code? why not just loop over the commands

import paramiko, subprocess

p = paramiko.SSHClient()
p.set_missing_host_key_policy(paramiko.AutoAddPolicy())
p.connect("10.0.0.65", port=22, username="dev", password="Production1!")

commands = ('ls', 'sudo raspi-config', 'sed -n 43p /proc/cpuinfo', 'sudo nano /etc/hostname',
            'sudo nano /etc/hosts', 'sudo touch ../../full_log.sh', 'sudo touch ../../live_log.sh',
            'sudo touch ../../update.sh', 'sudo touch ../../watch_and_update.sh', 
            'echo sudo journalctl -u spiderentry.service | sudo tee ../../full_log.sh', 
            'echo sudo journalctl -f -u spiderentry.service| sudo tee ../../live_log.sh', 
            'echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../update.sh', 
            'echo python3 ~/spiderkeypadpi/main/firmware_update.py | sudo tee ../../watch_and_update.sh', 
            'echo sudo journalctl -f -u spiderentry.service | sudo tee -a ../../watch_and_update.sh', 
            'sudo chmod +x ../../full_log.sh', 'sudo chmod +x ../../live_log.sh', 'sudo chmod +x ../../update.sh', 
            'sudo chmod +x ../../watch_and_update.sh', 'ssh-keygen -f ~/.ssh/id_rsa -t rsa -N "', 
            'cat ~/.ssh/id_rsa.pub', 'git clone [email protected]:SpiderDoorLLC/spiderkeypadpi.git', 
            'cd spiderkeypadpi/services', 'sudo chmod +x setup.sh', 'sudo ./setup.sh', 
            'sudo chmod -x setup.sh', 'cd ../main', 'sudo python3 serial_number.py', 
            'sudo python3 relay.py', 'sudo python3 snapshot.py', 'sudo rm 000*', 
            'sudo python3 main.py', 'cd spiderkeypadpi/services', 'sudo python3 stop_services.py', 
            'cd ../main ', 'sudo python3 snapshot.py', 'sudo python3 piezo.py')

for command in commands:
    stdin, stdout, stderr = p.exec_command(command)
    print("".join(stdout.readlines()))
    input("press enter to continue")

225 lines into just 27 lines

Thank you for this, this was helpful and my apologies for no tags. To answer your question of what I am trying to do, with the snapshot.py command there are two more steps in the raspi that happen when that command is entered individually in the raspi, it asks for "start", "capture" and "end" to complete the photo taking and it stores the photo on the pi in the proper drive. When i have the code written like this, it does not ask for the steps or store the photo it almost "glances over" that command. I also need to store the results from these commands in a .txt file as well and am stuck on that. I hope that clarifies, again thanks for your help. See the following for the snapshot explanation:

dev@Test_normal:~/spiderkeypadpi/main $ sudo python3 snapshot.py
Enter start, capture, stop, or end
SNAPSHOT: Starting preview
start
SNAPSHOT: start preview requested
Enter start, capture, stop, or end
SNAPSHOT: Starting preview
capture
SNAPSHOT: start preview requested
SNAPSHOT: Preview is already running
SNAPSHOT: Snapshot requested:0000+Wed, 21 Oct 2020 15:23:18 utc+Test+0+0+.jpg
Enter start, capture, stop, or end
SNAPSHOT: snapshot called:0000+Wed, 21 Oct 2020 15:23:18 utc+Test+0+0+.jpg
SNAPSHOT: photo size:110117
end
SNAPSHOT: Camera process finished
made it

**buran** · Oct-21-2020, 03:27 PM

did you check my second post and how to wait till command execution ends? Also, of you need to provide input to remote script, shouldn't you write to stdin somewhere in your code? All you do is to read output and print it

as to writing to file - just open a file for writing and then instead of/along with print, write to the file

AS4188 · Oct-21-2020, 03:49 PM

(Oct-21-2020, 03:27 PM)buran Wrote: did you check my second post and how to wait till command execution ends? Also, of you need to provide input to remote script, shouldn't you write to stdin somewhere in your code? All you do is to read output and print it

as to writing to file - just open a file for writing and then instead of/along with print, write to the file

I did, yes. So the ssh.exec_command() would follow that snapshot command only? correct?

And i got the write to file, thank you. I appreciate your assistance as I am new to this.

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Raspi Commands via Python (VS Code) Script

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