I found that using devpi cannot upgrade the pip version to 23.1.2 about devpi

[fschulze]

Can you provide more details, do you get an error message?

[zhenzi0322]

Can you provide more details, do you get an error message?

pip install pip==23.1.2 -i https://pypi.long920.cn/root/pypi/+simple

[zhenzi0322]

I don't know why there is no version with pip=23.1.2

[fschulze]

Can you open https://pypi.long920.cn/root/pypi/+simple/pip in a browser in click the refresh button? Also check the devpi-server logs when you do that and report the output here. Are you aware that https://pypi.long920.cn/root/pypi/+simple/pip is public?

[zhenzi0322]

log

devpi_server.model.UpstreamError: serial mismatch on GET URL('https://pypi.tuna.tsinghua.edu.cn/simple/pip/'), cache_serial 16906393 is newer than returned serial -1
2023-05-26 01:10:00,071 INFO  [req275] GET /root/pypi/+simple/pip/
2023-05-26 01:10:00,648 WARNI [req275] [Rtx1477] serving stale links, because of exception Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/devpi_server/mirror.py", line 707, in get_simplelinks_perstage
    self.xom.run_coroutine_threadsafe(
  File "/usr/local/lib/python3.9/site-packages/devpi_server/main.py", line 264, in run_coroutine_threadsafe
    raise exc
  File "/usr/local/lib/python3.9/site-packages/devpi_server/main.py", line 251, in _with_timeout
    return await asyncio.wait_for(asyncio.shield(coroutine), timeout)
  File "/usr/local/lib/python3.9/asyncio/tasks.py", line 481, in wait_for
    return fut.result()
  File "/usr/local/lib/python3.9/site-packages/devpi_server/mirror.py", line 552, in _async_fetch_releaselinks
    raise self.UpstreamError(
devpi_server.model.UpstreamError: serial mismatch on GET URL('https://pypi.tuna.tsinghua.edu.cn/simple/pip/'), cache_serial 16906393 is newer than returned serial -1

[fschulze]

Did you change the mirror_url? If data was already fetched and the mirror_url is changed to a different server that does not have the same internal serial numbers as pypi.org does, then you get this error. Also see the issue I just created: #973

[zhenzi0322]

OK. Processed