PyPortal - Demo code: ValueError: syntax error in JSON (after 72 hours)

[TheRealByron]

I believe I've encountered an error in the PyPoral Library that supports the code.py that retrieves Adafruit famous quotations. After an estimated 72 hours of "burn-in", I found the screen in text mode with a stacktrace-looking stream of text: rieving data...Reply is OK! (beginning of that has scrolled off screen) Couldn't parse JSON The actual "text" value appears truncated, and there is no attribution. The mentioned locations are: File code.py line 33 in File code.py line 30 in File adafruit_pyportal.py line 661 in fetch File adafruit_pyportal.py line 657 in fetch File adafruit_esp32spi/adafruit_esp32spi_requests.py line 110 in json ValueError: syntax error in JSON

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[tannewt]

We should catch parse errors like this and retry a few times before raising an exception.

[makermelissa]

I agree. This could be placed in a try block and handled better.

[ladyada]

i commited a minor fix https://github.com/adafruit/Adafruit_Learning_System_Guides/pull/601 @TheRealByron wanna try that?

[kattni]

@TheRealByron I have merged the fix. Please let us know if the updated code works for you.

[ladyada]

closin' cause im pretty sure its solved - reopen if not!

[CedarGroveStudios]

I experienced a similar issue with the Weather Station tutorial code. I put this fix into my custom code for the Adafruit IO time query and the OpenWeatherMap query and will test it over the next two days.

[ysiegel29]

Hello, I have had similar issues with a custom version of weather station demo code (using open weather). I could not solve the issue (or handle the issue), the code regularly crashed when using the json() method so could not finish the project. After few months, I have tried again this week-end having installed latest lib and circuit python librairies (4.10 beta) but I have the exact same symptoms.

The URL for API seems to work just fine, the code usually work fine for few minutes to few hours and and then crash on a json() method.

File "adafruit_esp32spi/adafruit_esp32spi_requests.py", line 116, in json ValueError: syntax error in JSON

The adafruit_esp32spi lib is the latest one.

Can you help? Am I doing something wrong or the above mentioned issue is not yet solved? Thanks!!!

[deshipu]

I think the issue is that the received json is being truncated — possibly due to a timeout or some other network problem. The best way to work around this is probably to catch this exception and retry.

[ymauray]

Not sure if it's a timeout of a memory issue, but it's impossible to get a 5 day weather forecast from OpenWeatherMap due to that json being truncated.