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Bug#996822: ensurepip throws an AssertionError on pypy3
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Ophir Lojkine
Oct 19, 2021, 7:10:03 AM10/19/21
to
Package: pypy3
FROM debian:stable-slim
RUN apt-get update && apt-get -y install pypy3RUN pypy3 -m ensurepip
Version: 7.3.5+dfsg-2
Running pypy3 -m ensurepip on Debian returns an AssertionError.
Running pypy3 -m ensurepip on Debian returns an AssertionError.
Here is a Dockerfile that reproduces the issue:
RUN apt-get update && apt-get -y install pypy3RUN pypy3 -m ensurepip
It throws the following error:
------
> [3/3] RUN pypy3 -m ensurepip:
#7 0.593 Traceback (most recent call last):
#7 0.593 File "/usr/lib/pypy3/lib-python/3/runpy.py", line 196, in _run_module_as_main
#7 0.593 "__main__", mod_spec)
#7 0.593 File "/usr/lib/pypy3/lib-python/3/runpy.py", line 85, in _run_code
#7 0.593 exec(code, run_globals)
#7 0.593 File "/usr/lib/pypy3/lib-python/3/ensurepip/__main__.py", line 5, in <module>
#7 0.593 sys.exit(ensurepip._main())
#7 0.593 File "/usr/lib/pypy3/lib-python/3/ensurepip/__init__.py", line 221, in _main
#7 0.593 version="pip {}".format(version()),
#7 0.593 File "/usr/lib/pypy3/lib-python/3/ensurepip/__init__.py", line 71, in version
#7 0.593 assert len(wheel_names) == 1, wheel_names
#7 0.593 AssertionError: []
———
Running get-pip.py does not change the error.
stef...@debian.org
Oct 19, 2021, 12:40:04 PM10/19/21
to
Hi Ophir (2021.10.19_10:59:43_+0000)
What should happen is that it prints the error message:
> ensurepip is disabled in Debian/Ubuntu for the system python.
>
> Python modules for the system python are usually handled by dpkg and apt-get.
>
> apt-get install python3-<module name>
>
> Install the python3-pip package to use pip itself. Using pip together
> with the system python might have unexpected results for any system
> installed module, so use it on your own risk, or make sure to only use
> it in virtual environments.
However:
> Running get-pip.py <https://bootstrap.pypa.io/get-pip.py> does not
> change the error.
I can't reproduce that, get-pip.py works for me, and leaves me with a
functional pip.
SR
--
Stefano Rivera
http://tumbleweed.org.za/
+1 415 683 3272
> Running pypy3 -m ensurepip on Debian returns an AssertionError.
Thanks for the bug, that shouldn't happen.
What should happen is that it prints the error message:
> ensurepip is disabled in Debian/Ubuntu for the system python.
>
> Python modules for the system python are usually handled by dpkg and apt-get.
>
> apt-get install python3-<module name>
>
> Install the python3-pip package to use pip itself. Using pip together
> with the system python might have unexpected results for any system
> installed module, so use it on your own risk, or make sure to only use
> it in virtual environments.
However:
> Running get-pip.py <https://bootstrap.pypa.io/get-pip.py> does not
> change the error.
I can't reproduce that, get-pip.py works for me, and leaves me with a
functional pip.
SR
--
Stefano Rivera
http://tumbleweed.org.za/
+1 415 683 3272
Ophir Lojkine
Oct 19, 2021, 12:40:04 PM10/19/21
to
>
> I can't reproduce that, get-pip.py works for me, and leaves me with a
> functional pip.
Interesting ! What does the following script return for you ?
> I can't reproduce that, get-pip.py works for me, and leaves me with a
> functional pip.
cat <<EOF > Dockerfile
FROM debian:stable-slim
RUN apt-get update && apt-get -y install pypy3 wget
RUN wget https://bootstrap.pypa.io/get-pip.py && pypy3 get-pip.py
RUN pypy3 -m ensurepip
EOF
docker build .
Ophir Lojkine
Oct 19, 2021, 12:50:03 PM10/19/21
to
> What should happen is that it prints the error message:
>
>> Install the python3-pip package to use pip itself. […]
Should it encourage the user to install python3-pip ? I thought this package was specific to cpython.
Installing it does not seem to make ensurepip work in pypy, at least.
stef...@debian.org
Oct 19, 2021, 1:00:03 PM10/19/21
to
Hi Ophir (2021.10.19_16:45:43_+0000)
All python3 implementations on Debian can use it.
However, when it comes to C extensions, those tend to be specific to
cpython (yes, this is a bit of a mess)
> Installing it does not seem to make ensurepip work in pypy, at least.
Again, not sure what you're expecting there.
> Should it encourage the user to install python3-pip ? I thought this
> package was specific to cpython.
It is not specific to cpython.
> package was specific to cpython.
All python3 implementations on Debian can use it.
However, when it comes to C extensions, those tend to be specific to
cpython (yes, this is a bit of a mess)
> Installing it does not seem to make ensurepip work in pypy, at least.
stef...@debian.org
Oct 19, 2021, 1:00:04 PM10/19/21
to
Hi Ophir (2021.10.19_16:32:18_+0000)
differently.
If you want to *use* pip, use "pypy3 -m pip", ensurepip is not a pip
wrapper.
> RUN apt-get update && apt-get -y install pypy3 wget
>
> RUN wget https://bootstrap.pypa.io/get-pip.py && pypy3 get-pip.py
>
> RUN pypy3 -m ensurepip
The same error. get-pip.py will do nothing to make ensurepip behave any
>
> RUN wget https://bootstrap.pypa.io/get-pip.py && pypy3 get-pip.py
>
> RUN pypy3 -m ensurepip
differently.
If you want to *use* pip, use "pypy3 -m pip", ensurepip is not a pip
wrapper.
stef...@debian.org
Oct 19, 2021, 1:10:03 PM10/19/21
to
Hi Ophir (2021.10.19_16:58:38_+0000)
> Of course ! But shouldn't ensurepip detect pip when it is installed,
> instead of returning an AssertionError ?
Yeah, possibly.
And as I said before, it shouldn't be returning an AssertionError,
that's a bug. You should be getting a friendly error explaining why
using ensurepip in a Debian packaged python doesn't make any sense.
> ensurepip being broken means that `pypy3 -m venv venv` is broken too, which
> is annoying.
No, that should be working. That's why we have ensurepip.
> Of course ! But shouldn't ensurepip detect pip when it is installed,
> instead of returning an AssertionError ?
Yeah, possibly.
And as I said before, it shouldn't be returning an AssertionError,
that's a bug. You should be getting a friendly error explaining why
using ensurepip in a Debian packaged python doesn't make any sense.
> ensurepip being broken means that `pypy3 -m venv venv` is broken too, which
> is annoying.
No, that should be working. That's why we have ensurepip.
Ophir Lojkine
Oct 19, 2021, 1:10:03 PM10/19/21
to
If you want to *use* pip, use "pypy3 -m pip", ensurepip is not a pip
wrapper.
Of course ! But shouldn't ensurepip detect pip when it is installed, instead of returning an AssertionError ?
Ophir Lojkine
Oct 19, 2021, 1:20:04 PM10/19/21
to
Again, not sure what you're expecting there.
If python3-pip is supposed to work with pypy, I would expect `apt install pypy3 python3-pip && pypy3 -m ensurepip --version` to return “pip 20.3.4-4”. Instead, it returns the long error message you mentioned above that suggests installing another package.
No, that should be working. That's why we have ensurepip.
Can you try it in a docker image ? Starting from Debian slim, "apt install pypy3 && pypy3 -m venv venv” fails for me.
stef...@debian.org
Oct 19, 2021, 1:40:03 PM10/19/21
to
Hi Ophir (2021.10.19_17:13:16_+0000)
>
> > Again, not sure what you're expecting there.
>
> If python3-pip is supposed to work with pypy, I would expect `apt install pypy3 python3-pip && pypy3 -m ensurepip --version` to return “pip 20.3.4-4”. Instead, it returns the long error message you mentioned above that suggests installing another package.
Nope, I get:
$ pypy3 -m ensurepip --version
pip 20.3.4
> > No, that should be working. That's why we have ensurepip.
>
> Can you try it in a docker image ? Starting from Debian slim, "apt install pypy3 && pypy3 -m venv venv” fails for me.
With an error message that says:
> The virtual environment was not created successfully because ensurepip
> is not available. On Debian/Ubuntu systems, you need to install the
> python-pip-whl package using the following command.
>
> apt-get install python-pip-whl
>
> You may need to use sudo with that command. After installing the
> python-pip-whl package, recreate your virtual environment.
If you read that error message, does that help?
>
> > Again, not sure what you're expecting there.
>
> If python3-pip is supposed to work with pypy, I would expect `apt install pypy3 python3-pip && pypy3 -m ensurepip --version` to return “pip 20.3.4-4”. Instead, it returns the long error message you mentioned above that suggests installing another package.
$ pypy3 -m ensurepip --version
pip 20.3.4
> > No, that should be working. That's why we have ensurepip.
>
> Can you try it in a docker image ? Starting from Debian slim, "apt install pypy3 && pypy3 -m venv venv” fails for me.
> The virtual environment was not created successfully because ensurepip
> is not available. On Debian/Ubuntu systems, you need to install the
> python-pip-whl package using the following command.
>
> apt-get install python-pip-whl
>
> You may need to use sudo with that command. After installing the
> python-pip-whl package, recreate your virtual environment.
If you read that error message, does that help?
Ophir Lojkine
Oct 20, 2021, 11:50:03 AM10/20/21
to
>> If python3-pip is supposed to work with pypy, I would expect `apt install pypy3 python3-pip && pypy3 -m ensurepip --version` to return “pip 20.3.4-4”. Instead, it returns the long error message you mentioned above that suggests installing another package.
>
> Nope, I get:
> $ pypy3 -m ensurepip --version
> pip 20.3.4
> If you read that error message, does that help?
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