pip newer version available

pip newer version available

[Csaba Raduly]

Hi all,

I recently installed python27-pip (20.2.2-1) and did a "pip install
grip", and at the end, pip displayed the following warning (or maybe
it's just an advertisement)

WARNING: You are using pip version 20.1.1; however, version 20.2.4 is available.
You should consider upgrading via the
'c:\users\csaba\appdata\local\programs\python\python38\python.exe -m
pip install --upgrade pip
' command.

Is it a good idea doing this upgrade ("behind the back" of the Cygwin
installer), or should I ignore this message until pip 20.2.4 (or
higher) becomes available as a Cygwin package?

Also, why is there a discrepancy between Cygwin's pip version and
pip's own version?

$ which python
/usr/bin/python
$ python -V
Python 2.7.18
$ which pip
/cygdrive/c/Users/Csaba/AppData/Local/Programs/Python/Python38/Scripts/pip

Whoops!

$ which grip
/cygdrive/c/Users/Csaba/AppData/Local/Programs/Python/Python38/Scripts/grip

$ find /usr -name pip -type f
$

Check https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fpython27-pip%2Fpython27-pip-20.2.2-1&grep=%5Cbpip%5Cb

$ which pip2
/usr/bin/pip2

Aha!

$ pip2 install grip
... lots of output ...
WARNING: You are using pip version 20.2.2; however, version 20.2.4 is available.
You should consider upgrading via the '/usr/bin/python2.7 -m pip
install --upgrade pip' command.

$ which grip
/usr/bin/grip

Finally, sanity returns. Still, the question remains whether upgrading
pip like this is advisable or not.

Csaba
-- 
You can get very substantial performance improvements
by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler
So if you're looking for a completely portable, 100% standards-conformant way
to get the wrong information: this is what you want. - Scott Meyers (C++TDaWYK)

Re: pip newer version available

[Ken Brown]

On 11/28/2020 9:18 AM, Csaba Raduly via Cygwin wrote:
[I've cut out everything above this in your message, because you appear to have 
answered your own questions.  But ask again if I'm misinterpreting.]

> $ which pip2
> /usr/bin/pip2
> 
> Aha!
> 
> $ pip2 install grip
> ... lots of output ...
> WARNING: You are using pip version 20.2.2; however, version 20.2.4 is available.
> You should consider upgrading via the '/usr/bin/python2.7 -m pip
> install --upgrade pip' command.
> 
> $ which grip
> /usr/bin/grip
> 
> Finally, sanity returns. Still, the question remains whether upgrading
> pip like this is advisable or not.

I wouldn't.  It just seems like asking for trouble.  I'm sure Marco will upgrade 
Cygwin's pip in due course.

By the way, do you really want to be using python2 rather than python3 at this 
point?  See

   https://python3statement.org/

Ken

Re: pip newer version available

[Marco Atzeri]

On 28.11.2020 15:18, Csaba Raduly via Cygwin wrote:
> Hi all,
> 
> I recently installed python27-pip (20.2.2-1) and did a "pip install
> grip", and at the end, pip displayed the following warning (or maybe
> it's just an advertisement)
> 


> 
> Finally, sanity returns. Still, the question remains whether upgrading
> pip like this is advisable or not.
> 
> Csaba
> 

I suggest to not mix.
Eventually you should also start to use python3

Re: pip newer version available

[Nicholas Clark]

Your first command used your Windows installation of Python, not Cygwin's.
But it looks like you caught that.

To your question about upgrading pip in Cygwin, it's not usually a good
idea to overwrite any distro-provided packages. That's true on Linux and on
Cygwin as well.

But if you want access to some newer Python packages (or access to packages
that Cygwin doesn't provide), pip has a --user flag that will install
packages into your home directory instead of into your global Python
installation. That's a good way to install/upgrade packages without
breaking anything system-wide.

-Nick

On Sat, Nov 28, 2020, 07:20 Csaba Raduly via Cygwin <cygwin@cygwin.com>
wrote:

> Hi all,
>
> I recently installed python27-pip (20.2.2-1) and did a "pip install
> grip", and at the end, pip displayed the following warning (or maybe
> it's just an advertisement)
>
> WARNING: You are using pip version 20.1.1; however, version 20.2.4 is
> available.
> You should consider upgrading via the
> 'c:\users\csaba\appdata\local\programs\python\python38\python.exe -m
> pip install --upgrade pip
> ' command.
>
> Is it a good idea doing this upgrade ("behind the back" of the Cygwin
> installer), or should I ignore this message until pip 20.2.4 (or
> higher) becomes available as a Cygwin package?
>
> Also, why is there a discrepancy between Cygwin's pip version and
> pip's own version?
>
> $ which python
> /usr/bin/python
> $ python -V
> Python 2.7.18
> $ which pip
> /cygdrive/c/Users/Csaba/AppData/Local/Programs/Python/Python38/Scripts/pip
>
> Whoops!
>
> $ which grip
> /cygdrive/c/Users/Csaba/AppData/Local/Programs/Python/Python38/Scripts/grip
>
> $ find /usr -name pip -type f
> $
>
> Check
> https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fpython27-pip%2Fpython27-pip-20.2.2-1&grep=%5Cbpip%5Cb
>
> $ which pip2
> /usr/bin/pip2
>
> Aha!
>
> $ pip2 install grip
> ... lots of output ...
> WARNING: You are using pip version 20.2.2; however, version 20.2.4 is
> available.
> You should consider upgrading via the '/usr/bin/python2.7 -m pip
> install --upgrade pip' command.
>
> $ which grip
> /usr/bin/grip
>
> Finally, sanity returns. Still, the question remains whether upgrading
> pip like this is advisable or not.
>
> Csaba
> --
> You can get very substantial performance improvements
> by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler
> So if you're looking for a completely portable, 100% standards-conformant
> way
> to get the wrong information: this is what you want. - Scott Meyers
> (C++TDaWYK)
> --
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