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Quiet warnings about netrc #3267

Merged
merged 1 commit into from
Oct 15, 2018
Merged

Quiet warnings about netrc #3267

merged 1 commit into from
Oct 15, 2018

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nicktimko
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@nicktimko nicktimko commented Sep 13, 2018

What do these changes do?

If there isn't a .netrc file specified by an environment variable, it can be confusing to see warnings about it. If NETRC isn't set, don't warn. Only warn if one of

  • can't resolve HOME
  • can load, but can't parse file
  • can't find file
  • file appears to exist at the default location but is unreadable for some reason.

Are there changes in behavior for the user?

When using the client from a command line application, the user will no longer see could't find .netrc file if ~/.netrc is missing and/or the envvar NETRC isn't set.

Related issue number

None.

Checklist

  • I think the code is well written: Tried to reduce how much code the try/except was catching, added some early exits to reduce number of conditionals
  • Unit tests for the changes exist: n/a: UI change?
  • Documentation reflects the changes: n/a, UI change?
  • If you provide code modification, please add yourself to CONTRIBUTORS.txt: n/a trivial change
  • Add a new news fragment into the CHANGES folder: trivial change?
    • name it <issue_id>.<type> for example (588.bugfix)
    • if you don't have an issue_id change it to the pr id after creating the pr
    • ensure type is one of the following:
      • .feature: Signifying a new feature.
      • .bugfix: Signifying a bug fix.
      • .doc: Signifying a documentation improvement.
      • .removal: Signifying a deprecation or removal of public API.
      • .misc: A ticket has been closed, but it is not of interest to users.
    • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

netrc_path = home_dir.joinpath('.netrc')
except RuntimeError as e: # pragma: no cover
# if pathlib can't resolve home, it may raise a RuntimeError
client_logger.warning("Could not find .netrc file: %s", e)
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This message seems to be misleading

""" handle error raised by pathlib """
client_logger.warning("could't find .netrc file: %s", e)
return netrc_obj
if os.name == 'nt': # pragma: no cover
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Use platform.system() instead

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@webknjaz webknjaz Sep 15, 2018

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netrc_path = home_dir / ('_netrc' if platform.system() == 'Windows' else '.netrc')

If there isn't a .netrc file specified by an environment variable, it
can be confusing to see warnings about it. If NETRC isn't set, don't
warn. Only warn if: a) can't resolve HOME, b) can load, but can't parse
file, c) can't find file, d) file appears to exist at the default
location but is unreadable for some reason.
@agronholm
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I also couldn't understand why these warnings were printed in the first place.

@nicktimko
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I dunno, if I just submit a diff where I delete all of them, that fine?

@asvetlov asvetlov merged commit 965a1cd into aio-libs:master Oct 15, 2018
@asvetlov
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Thanks!

@agronholm
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@nicktimko Why is it even necessary to print a warning if the home directory cannot be resolved? A typical Docker container will not have a resolvable home directory unless one is explicitly created in the Dockerfile.

@asvetlov
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If your code is not supposed to work with trust_env=True -- why do you want to pass the flag at all?

@nicktimko
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nicktimko commented Oct 15, 2018

@agronholm This was a bit monkey-see, monkey-do. I was trying to preserve the existing behavior that I didn't understand, as I haven't used a .netrc file didn't fully grok it. I was going on the assumption that the existing code was correct (#2584) for most circumstances, and I don't think I changed much in the functionality aside from the narrow case that I cut out (nothing set in the env, the file doesn't exist.)

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If your code is not supposed to work with trust_env=True -- why do you want to pass the flag at all?

What are you talking about? I use trust_env=True so it could pick up my proxy settings from the environment variables.

@asvetlov
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Ok, I see nothing bad if we will suppress a warning if the home directory doesn't exist..

@agronholm would you prepare a pull request?

@agronholm
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Sure, I'll try to get that done this week.

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lock bot commented Oct 28, 2019

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a [new issue] for related bugs.
If you feel like there's important points made in this discussion, please include those exceprts into that [new issue].
[new issue]: https://github.com/aio-libs/aiohttp/issues/new

@lock lock bot added the outdated label Oct 28, 2019
@lock lock bot locked as resolved and limited conversation to collaborators Oct 28, 2019
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4 participants