When using urllib3 no data received.

[CutePotatoDev]

Python 3.6.7
urllib3 1.25.7
sseclient-py 1.7

When using with urllib3 not get my messages. looks like issue is:

sseclient/sseclient/__init__.py

Line 48 in 16a29bb

for chunk in self._event_source:

It's never get chunks of data. I track down problem to this place:
https://github.com/urllib3/urllib3/blob/93e5c6a5bb12a67a89bd8b24584d64a3102b2096/src/urllib3/response.py#L543
urllib3 waiting 65536 bytes of data and only then dispatch chunk.
After overriding:
https://github.com/urllib3/urllib3/blob/93e5c6a5bb12a67a89bd8b24584d64a3102b2096/src/urllib3/response.py#L794
and decreasing amt size, messages start arriving as expected.

[bablokb]

Did you hardwire your overrides, or did you subclass urllib3? And did you test the alternative (normal requests)?

[CutePotatoDev]

Did you hardwire your overrides, or did you subclass urllib3? And did you test the alternative (normal requests)?

Oh... it happens 3 years ago. I not even really remember anything from back then.
I try scan my code archive and found more info how i solve this problem back then.

[bablokb]

I solved this in my code by switching from the urllib3-package to requests-package. But your analysis was important to understand it was not a problem of my own code.