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Начиная с Python 3.0, при возникновении нового исключения внутри блока except перехваченное исключение автоматически сохраняется в атрибуте __context__ создаваемого исключения. В результате при выводе будут показаны оба исключения:


try:
1 / 0
except ZeroDivisionError:
raise ValueError('Zero!')



(most recent call last):
File "test.py", line 2, in <module>
1 / 0
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "test.py", line 4, in <module>
raise ValueError('Zero!')
ValueError: Zero!


Кроме того, вы можете явно указать причинное исключение, использовав конструкцию raise … from. Тогда в атрибут __cause__ нового исключения будет помещено исходное:


division_error = None

try:
1 / 0
except ZeroDivisionError as e:
division_error = e

raise ValueError('Zero!') from division_error



(most recent call last):
File "test.py", line 4, in <module>
1 / 0
ZeroDivisionError: division by zero

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "test.py", line 8, in <module>
raise ValueError('Zero!') from division_error
ValueError: Zero!


👉@BookPython



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Начиная с Python 3.0, при возникновении нового исключения внутри блока except перехваченное исключение автоматически сохраняется в атрибуте __context__ создаваемого исключения. В результате при выводе будут показаны оба исключения:


try:
1 / 0
except ZeroDivisionError:
raise ValueError('Zero!')



(most recent call last):
File "test.py", line 2, in <module>
1 / 0
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "test.py", line 4, in <module>
raise ValueError('Zero!')
ValueError: Zero!


Кроме того, вы можете явно указать причинное исключение, использовав конструкцию raise … from. Тогда в атрибут __cause__ нового исключения будет помещено исходное:


division_error = None

try:
1 / 0
except ZeroDivisionError as e:
division_error = e

raise ValueError('Zero!') from division_error



(most recent call last):
File "test.py", line 4, in <module>
1 / 0
ZeroDivisionError: division by zero

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "test.py", line 8, in <module>
raise ValueError('Zero!') from division_error
ValueError: Zero!


👉@BookPython

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The lead from Wall Street offers little clarity as the major averages opened lower on Friday and then bounced back and forth across the unchanged line, finally finishing mixed and little changed.The Dow added 33.18 points or 0.10 percent to finish at 34,798.00, while the NASDAQ eased 4.54 points or 0.03 percent to close at 15,047.70 and the S&P 500 rose 6.50 points or 0.15 percent to end at 4,455.48. For the week, the Dow rose 0.6 percent, the NASDAQ added 0.1 percent and the S&P gained 0.5 percent.The lackluster performance on Wall Street came on uncertainty about the outlook for the markets following recent volatility.

Export WhatsApp stickers to Telegram on Android

From the Files app, scroll down to Internal storage, and tap on WhatsApp. Once you’re there, go to Media and then WhatsApp Stickers. Don’t be surprised if you find a large number of files in that folder—it holds your personal collection of stickers and every one you’ve ever received. Even the bad ones.Tap the three dots in the top right corner of your screen to Select all. If you want to trim the fat and grab only the best of the best, this is the perfect time to do so: choose the ones you want to export by long-pressing one file to activate selection mode, and then tapping on the rest. Once you’re done, hit the Share button (that “less than”-like symbol at the top of your screen). If you have a big collection—more than 500 stickers, for example—it’s possible that nothing will happen when you tap the Share button. Be patient—your phone’s just struggling with a heavy load.On the menu that pops from the bottom of the screen, choose Telegram, and then select the chat named Saved messages. This is a chat only you can see, and it will serve as your sticker bank. Unlike WhatsApp, Telegram doesn’t store your favorite stickers in a quick-access reservoir right beside the typing field, but you’ll be able to snatch them out of your Saved messages chat and forward them to any of your Telegram contacts. This also means you won’t have a quick way to save incoming stickers like you did on WhatsApp, so you’ll have to forward them from one chat to the other.

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