Communicate Error
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View this message in English Je gebruikt YouTube in het Nederlands. Je kunt deze voorkeur hieronder wijzigen. communication error epson Learn more You're viewing YouTube in Dutch. You can change this preference below. Sluiten Ja, nieuwe versie behouden Ongedaan maken Sluiten Deze video is niet beschikbaar. WeergavewachtrijWachtrijWeergavewachtrijWachtrij Alles verwijderenOntkoppelen Laden... Weergavewachtrij Wachtrij __count__/__total__ [Solve Problem] Communication error! Error Code 2100012c | Epson TX720WD - EP-801A chhengleang thuch AbonnerenGeabonneerdAfmelden708708 Laden... Laden... Bezig... Toevoegen aan Wil je hier later nog een keer naar kijken? Log in om deze video toe te voegen aan een afspeellijst. Inloggen Delen Meer Rapporteren Wil je een melding indienen over de video? Log in om ongepaste content te melden. Inloggen Statistieken 51.025 weergaven 7 Vind je dit een leuke video? Log in om je mening te geven. Inloggen 8 37 Vind je dit geen leuke video? Log in om je mening te geven. Inloggen 38 Laden... Laden... Laden... Beoordelingen zijn beschikbaar wanneer de video is verhuurd. Deze functie is momenteel niet beschikbaar. Probeer het later opnieuw. Gepubliceerd op 9 jun. 2015Please practice following this step below:• Make sure the product is powered on and try the following: USB connection• Check the product lights and follow the instructions to solve them.• Make sure you are choosing the correct printer when printing. If there are multiple copies of the same printer driver, remove the ones not in use.• Make sure the USB cable is a shielded "AB" cable not more than 6.5 feet (2 meters) long.• Note: Do not use devices that extend the length of the cable because they can cause signal degradation.• If you'r
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring http://stackoverflow.com/questions/34314475/how-to-make-subprocess-only-communicate-error developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to make subprocess only communicate error up vote 4 down vote favorite We have created a commodity function used in many projects which uses subprocess to start a command. This communication error function is as follows: def _popen( command_list ): p = subprocess.Popen( command_list, stdout=subprocess.PIPE, stderr=subprocess.PIPE ) out, error_msg = p.communicate() # Some processes (e.g. system_start) print a number of dots in stderr # even when no error occurs. if error_msg.strip('.') == '': error_msg = '' return out, error_msg For most processes this works as intended. But now I have to use it with a background-process which need to keep running as long as my python-script is running as well and epson communication error thus now the fun starts ;-). Note: the script also needs to start other non background-processes using this same _popen-function. I know that by skipping p.communicate I can make the process start in the background, while my python script continues. But there are 2 problems with this: I need to check that the background process started correctly While the main process is running I need to check the stdout and stderr of the background process from time to time without stopping the process / ending hanging in the background process. Check background process started correctly For 1 I currently adapted the _popen version to take an extra parameter 'skip_com' (default False) to skip the p.communicate call. And in that case I return the p-object i.s.o. out and error_msg. This so I can check if the process is running directly after starting it up and if not call communicate on the p-object to check what the error_msg is. MY_COMMAND_LIST = [ "