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Witam,

napisałem sobie taki skrypcik podręczny do pobierania rzeczy z YT (mniejsza). No i pobiera elegancko. Problemem jest to, że wali błędami typu:

ERROR: [Errno 22] Invalid argument
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='cp1250'>
OSError: [Errno 22] Invalid argument

Jak na moje funkcja readline() wisi i po tym jak program youtube-dl pobierze rzeczy z jednego kanału i subprocess zakończy się to ten readline() rzuci błędem. Ktoś ma jakiś pomysł?

#!/usr/bin/python
import subprocess
import sys

#LASTUPDATED
lastUpdated = 20190305
#LASTUPDATED

commands = ["youtube-dl --dateafter "+str(lastUpdated) + " ", "youtube-dl "]


itemsToDownload = [
	{
	"cid": 0,
	"fname": "poetakodu",
	"link": "https://www.youtube.com/channel/UC-LTY8udwDeOUzMY8PIhD6w"
	},
]


def dlItems():
	#execeuteCmd("youtube-dl -U")

	#for item in itemsToDownload:
		item = itemsToDownload[0]
		cmd = "cd " + item["fname"] + " && "
		cmd += commands[item["cid"]] + item["link"] + " && "
		cmd += "cd .."
		executeCommand(cmd)

def executeCommand(cmd):
	
	process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
	while True:
		if process.poll() is not None:
			break;
		
		nextline = process.stdout.readline()
		
		if nextline != '':
			nextline = nextline.decode("utf-8", errors="ignore")

		if "upload date is not in range" in nextline:
			break
		sys.stdout.write(nextline)
		sys.stdout.flush()

	process.stdout.close()
	process.terminate()



#ERROR: [Errno 22] Invalid argument
#Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='cp1250'>
#OSError: [Errno 22] Invalid argument


if __name__ == '__main__':
	dlItems() 

https://stackoverflo...age-in-python-3

Czyli co, to po prostu jakiś bug?

Oblatałem rano chyba z 100 tematów na staku. Próbowałem w blok 'try' dodawać itp, ale nie jest łapany wyjątek. (albo jeszcze nie ogarniam na tyle pythona)

def executeCommand(cmd):
	
	process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
	while True:
		if process.poll() is not None:
			break;
		
		try:
			nextline = process.stdout.readline()
		except IOError:
			sys.stdout.write("Exc on close: " + str(sys.exc_info()[0]) + "\n")
		
		if nextline != '':
			nextline = nextline.decode("utf-8", errors="ignore")

		if "upload date is not in range" in nextline:
			break
		try:
			sys.stdout.write(nextline)
			sys.stdout.flush()
		except IOError:
			sys.stdout.write("Exc on close: " + str(sys.exc_info()[0]) + "\n")
	try:
		process.stdout.close()
	except IOError:
		sys.stdout.write("Exc on close: " + str(sys.exc_info()[0]) + "\n")

	process.terminate()

output:

Rivit@DESKTOP-QEC4TCS D:\
$ update.py
[youtube:channel] UC-LTY8udwDeOUzMY8PIhD6w: Downloading channel page
[youtube:playlist] UU-LTY8udwDeOUzMY8PIhD6w: Downloading webpage
[download] Downloading playlist: Uploads from Poeta Kodu
[youtube:playlist] playlist Uploads from Poeta Kodu: Downloading 12 videos
[download] Downloading video 1 of 12
[youtube] os5xHYIeid4: Downloading webpage
[youtube] os5xHYIeid4: Downloading video info webpage
[youtube] os5xHYIeid4: Downloading MPD manifest
ERROR: [Errno 22] Invalid argument
ERROR: [Errno 22] Invalid argument
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='cp1250'>
OSError: [Errno 22] Invalid argument

Albo czy znasz może jakąś inną metodę przechwytywania stdout z running procesu?

sys.stdout.write("Exc on close: " + str(sys.exc_info()[0]) + "\n")

Co zwraca?

Możesz sprawdzić przez: 

print(str(sys.exc_info())