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devel / comp.lang.python / How to get the needed version of a dependency

How to get the needed version of a dependency

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From: Cecil@decebal.nl (Cecil Westerhof)
Newsgroups: comp.lang.python
Subject: How to get the needed version of a dependency
Date: Wed, 14 Dec 2022 09:55:34 +0100
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by: Cecil Westerhof - Wed, 14 Dec 2022 08:55 UTC

If I want to know the dependencies for requests I use:
pip show requests

And one of the lines I get is:
Requires: certifi, charset-normalizer, idna, urllib3

But I want (in this case) to know with version of charset-normalizer
requests needs.
How do I get that?

--
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Re: How to get the needed version of a dependency

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by: DFS - Wed, 14 Dec 2022 13:38 UTC

On 12/14/2022 3:55 AM, Cecil Westerhof wrote:
> If I want to know the dependencies for requests I use:
> pip show requests
>
> And one of the lines I get is:
> Requires: certifi, charset-normalizer, idna, urllib3
>
> But I want (in this case) to know with version of charset-normalizer
> requests needs.
> How do I get that?

Check the METADATA file in the *dist-info package files usually found in
Lib\site-packages.

ie \Python\3.11.0\Lib\site-packages\pandas-1.5.2.dist-info

Look for config lines beginning with 'Requires':

Requires-Python: >=3.8
Requires-Dist: python-dateutil (>=2.8.1)

$ pip list will show you which version of the package you have
installed, so you can search for the matching .dist-info file

Re: How to get the needed version of a dependency

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From: Cecil@decebal.nl (Cecil Westerhof)
Newsgroups: comp.lang.python
Subject: Re: How to get the needed version of a dependency
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by: Cecil Westerhof - Wed, 14 Dec 2022 21:05 UTC

DFS <nospam@dfs.com> writes:

> On 12/14/2022 3:55 AM, Cecil Westerhof wrote:
>> If I want to know the dependencies for requests I use:
>> pip show requests
>> And one of the lines I get is:
>> Requires: certifi, charset-normalizer, idna, urllib3
>> But I want (in this case) to know with version of charset-normalizer
>> requests needs.
>> How do I get that?
>
> Check the METADATA file in the *dist-info package files usually found in
> Lib\site-packages.
>
> ie \Python\3.11.0\Lib\site-packages\pandas-1.5.2.dist-info
>
> Look for config lines beginning with 'Requires':
>
> Requires-Python: >=3.8
> Requires-Dist: python-dateutil (>=2.8.1)
>
> $ pip list will show you which version of the package you have
> installed, so you can search for the matching .dist-info file

Works. In
/usr/local/lib/python3.9/dist-packages/requests-2.28.1.dist-info/METADATA
I see:
Requires-Dist: charset-normalizer (<3,>=2)

That already keeps charset-normalizer two months from being updated.
Maybe I should contact Kenneth Reitz.

--
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Subject	Author
How to get the needed version of a dependency	Cecil Westerhof
Re: How to get the needed version of a dependency	DFS
Re: How to get the needed version of a dependency	Cecil Westerhof