[Tutor] string not found in variable

[dn]

On 22/03/2021 11.31, jark AJ wrote:
> Hi All,
> 
>      There are two actions I am trying to achieve here.
> 
> 1) To check if the connectivity exists between the source and destination
> 2) To run the test five times to ensure there is no intermittent packet
> loss we experience.
> 
> looking to use the nc command here in python, On a bash shell, we do it
> using
> for i in {1..5}; do nc -zvw 4 www.google.com 443 ; done
> 
> I have the following questions:
> 
> 1) I am storing the subprocess output in a variable called output which is
> of type string. It has succeeded in the output; however, when I use
> print("succeeded!" in output), its returning false
> 2) Is there a way we could keep appending the output like a list in the
> string. trying to do the success/failure logic at the end based on the
> results of all five tests. Looking to achieve this using the variable which
> stores the output.
> 
> Thank you in advance!
> 
> ___
> 
> import subprocess
> 
> class Command(object):
>     def __init__(self, cmd):
>         self.cmd = cmd
> 
>     def run(self, shell=False):
>         try:
>             print("Executing Command >>", self.cmd)
>             output = subprocess.Popen(
>                 self.cmd.split(), stdout=subprocess.PIPE, shell=shell
>             )
>             return output.communicate()[0]
>         except subprocess.CalledProcessError as e:
>             return e.returncode
> 
>     def __str__(self):
>         return str(self.cmd)
> 
> count = 0
> while count <= 5:
>     nc_command = Command("nc -zvw 4 www.google.com 443")
>     output = Command.run(nc_command)
>     count += 1
>     print(output)
>     print(type(output))
>     print("succeeded!" in output)
> 
> ___
> 
> 
> Output:
> __
> 
> ('Executing Command >>', 'nc -zvw 4 www.google.com 443')
> Connection to www.google.com port 443 [tcp/https] succeeded!
> 
> <type 'str'>
> False

Is it type byte, cf str?
-- 
Regards,
=dn