Newbie here. I've created my first Python package and I managed to register it on Pypi, as well as upload the tar.gz file. Now whenever I want to run:
pip install myPackage
I get this error in console:
Could not find a version that satisfies the requirement myPackage (from versions: 1.0dev)
No distributions matching the version for flashCardStudy
Storing debug log for failure in /Users/xxx/Library/Logs/pip.log
I believe this is because my version is development version I guess? So yeah, I can install it by adding --pre argument but what I'd really like is to turn it into a normal version so to speak.
I've tried figuring out how to do it and looking at some docs but I can't still figure it out. In my setup.py my version is set to '1.0' so I don't see where to problem is. If anyone wants to have a look at the file, here it is.
So I found the problem. I used utility called Paster which generates package structure, including setup.py and setup.cfg files among others. My utility hasn't been updated in a while and meanwhile submission rules to PyPi have changed. It now requires certain setup.py structure and unless it passes via pip, it's labeled as development version - which pip does not install without --pre argument.
So I just went to PyPi pages and looked at setup.py tutorial, did it their way and now it works.
Related
We use a pipeline that first uses pip wheel to collect all the packages that are needed in the project and then it creates a docker image that calls to pip install on the collected wheels.
The issue I am encountering is that when calling pip wheel, pip is collecting 2 different versions of a package. This has started occurring once a new version of the package is available.
The project has a requirement for an internal library ecs-deployer==10.1.2 and that library has in turn a requirement in the form of: elb-listener>=3.2.1+25,<4
The relevant output of pip wheel with the verbose option says:
Collecting elb-listener>=3.2.1+25,<4
Created temporary directory: /tmp/pip-unpack-zr930807
File was already downloaded /home/user/path/dist/elb_listener-3.2.2+26-py3-none-any.whl
Added elb-listener>=3.2.1+25,<4 from https://internal-repository.com/path/elb_listener/3.2.2%2B26/elb_listener-3.2.2%2B26-py3-none-any.whl#md5=foo (from ecs-deployer==10.1.2->service==1.0.0) to build tracker '/tmp/pip-req-tracker-1tz9t5ls'
Removed elb-listener>=3.2.1+25,<4 from https://internal-repository.com/path/elb_listener/3.2.2%2B26/elb_listener-3.2.2%2B26-py3-none-any.whl#md5=blabla (from ecs-deployer==10.1.2->service==1.0.0) to build tracker '/tmp/pip-req-tracker-1tz9t5ls'
And also:
Collecting elb-listener>=3.2.1+25,<4
Created temporary directory: /tmp/pip-unpack-yfnxim_u
File was already downloaded /home/user/path/dist/elb_listener-3.2.3+27-py3-none-any.whl
Added elb-listener>=3.2.1+25,<4 from https://internal-repository.com/path/elb_listener/3.2.3%2B27/elb_listener-3.2.3%2B27-py3-none-any.whl#md5=bar (from ecs-deployer==10.1.2->service==1.0.0) to build tracker '/tmp/pip-req-tracker-1tz9t5ls'
Then when the pip install is called I get this:
ERROR: Cannot install elb-listener 3.2.2+26 (from /opt/elb_listener-3.2.2+26-py3-none-any.whl) and cad-aws-elb-listener-target-group-builder 3.2.3+27 (from /opt/elb_listener-3.2.3+27-py3-none-any.whl) because these package versions have conflicting dependencies.
The conflict is caused by:
The user requested elb-listener 3.2.2+26 (from /opt/elb_listener-3.2.2+26-py3-none-any.whl)
The user requested elb-listener 3.2.3+27 (from /opt/elb_listener-3.2.3+27-py3-none-any.whl)
We use pip 20.2.3 with the option --use-feature=2020-resolver
Is it normal that pip wheel collects several versions of the same package?
If so, can I indicate in any way to either pip wheel to only collect one of the versions or to pip install to only use the latest version?
If not, is there any way to solve this problem? I guess changing the requirement to elb-listener>=3.2.1+27,<4 would solve it, but we don't have direct access to that library and it would take a while for other team to change it.
As per #sinoroc comment, upgrading the python to 3.10 and pip version to 21.2.4 solved this particular issue.
As far as I understood, "local version identifiers" such as 3.2.1+25 are far from usual, apparently they are not meant to be used anywhere public (like PyPI), and that might be the reason for all the trouble here. I am really not sure how well they are supported by Python packaging tools and maybe they confuse the dependency resolution.
Local version identifiers SHOULD NOT be used when publishing upstream projects to a public index server, but MAY be used to identify private builds created directly from the project source. Local version identifiers SHOULD be used by downstream projects when releasing a version that is API compatible with the version of the upstream project identified by the public version identifier, but contains additional changes (such as bug fixes). As the Python Package Index is intended solely for indexing and hosting upstream projects, it MUST NOT allow the use of local version identifiers.
-- "Local version identifiers" section of _PEP 440
I'm having serious trouble with using setup.py to pip install my package which also has dependency links. I have read this answer and this one thoroughly and none of the answers including the accepted ones help.
Here is the setup.py for the package trying to install.
Basically, it reads the requirements.txt to fill install_requires and dependency_links, most of the rest of the code is boilerplate from cookie-cutter. requirements.txt has a private github repo in it which is causing the issues. e.g. git+https://${GITHUB_OAUTH_TOKEN}#github.com/jmerkow/pripy.git#egg=pripy
When I run pip install -r requirements.txt everything works great, it installs the private repository. However, if I try to install using pip install . --process-dependency-links, I get this error:
Could not find a version that satisfies the requirement pripy (from mypackage==<sha>) (from versions: )
No matching distribution found for pripy (from mypackage==<sha>)
If I take off the #egg=xxx from the link in requirements, the private repo package is completely ignored by pip install . but not by pip install -r requirements.txt.
I have confirmed that dependency_links contains 'git+https://<actual-token>#github.com/jmerkow/pripy.git#egg=pripy' and that install_requires includes 'pripy'
How do you get setup to properly Is this a problem with the sub-package? setup.py in that repo is done pretty much the same, except there are no private links.
Ugh, this always happens. I put in all the work to the question, then I figure it out myself.
The issue is two things, first, all dependeny_links need to have a version, second to pull the version from the requirements file properly you need to do some magic on the string.
Comparing to the above setup.py, I changes the way requirements are added to the two lists (updated here). Then add the version to #egg=xxx on the link e.g.
git+https://${GITHUB_OAUTH_TOKEN}#github.com/jmerkow/pripy.git#egg=pripy-0.
Now setup.py will parse that file, take the egg version info, convert it to a pip version (basically replace the first '-' with an '==') for the install_requires, and you're good to go.
Python n00b here trying to install decoder.py via pip.
I see it exists when I search for it
$ pip search decoder.py
decoder.py (1.5XB) - Cross-platform Python module for decoding compressed audio files
But i can't seem to install it.
$ pip install decoder.py
Collecting decoder.py
Could not find a version that satisfies the requirement decoder.py (from versions: )
No matching distribution found for decoder.py
$ pip install decoder.py==1.5XB
Collecting decoder.py==1.5XB
Could not find a version that satisfies the requirement decoder.py==1.5XB (from versions: )
No matching distribution found for decoder.py==1.5XB
Any ideas?
This package doesn't provide any downloadable source code on PyPI.
You can download it from http://www.brailleweb.com/cgi-bin/python.py (this link was provided by authors on pypi, proceed with caution).
Author of decoder.py here. :D
I am sorry for inconvenience. pip was able to grab decoder.py from brailleweb.com before. It was unable to install it though because I didn't provide a setup script. I didn't do it primarily because people might like to choose which external decoders they would like to use and perhaps don't want to install them into their's Python site-packages directory on Windows.
So I settled for manual installation instead. You aren't first who complained about it and that's why next version will have the setup script at least.
The new version is coming out soon. I am sorry to say development is slower than I anticipated but new version will be ready sooner or later. :D
Cheers!
I am working with Scrapy framework to scrap out data from website, but getting the following error in command prompt:
ImportError: cannot import name '_win32stdio'
Traceback is attached as a screenshot.
Kindly revert if require directory structure of my program's directory.
Scrapy can work with Python 3 on windows if you make some minor adjustments:
Copy the _win32stdio and _pollingfile to the appropriate directory under site-packages. Namely, twisted-dir\internet. Download these from https://github.com/twisted/twisted/tree/trunk/twisted/internet
pip install pypiwin32
Granted, this is based on my personal experience. Because the repository will certainly change in the future, readers should beware the age of this answer.
Update: the twisted-win package is no longer required because the appropriate files are now included in the twisted package.
I have gone through the same. I have resolved by updating the twisted package
pip install --upgrade twisted
or
pip uninstall twisted and pip install twisted
get whl of twisted (from below link) according to your os and py version and you are good to go!
https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
I have a program that uses dateutil from the package index. I would like to have setup.py check for for its presence and try to get it using easy_install if it is not there.
The documentation for distutils seems to indicate that this can be done using the requires keyword in setup(), but when I try, it installs on a system without dateutil without giving a warning or installing the required package.
The only thing I could find on google was this blog post about the same issue which did not have any answer either.
Am I using distutils wrong? Do I need to subclass distutils.command.install and do the checking/installing myself?
Automatic downloading of dependencies is a feature introduced by setuptools which is a third-party add-on to distutils, in particular, the install_requires argument it adds. See the setuptools documentation for more information.
Another option is to use requirements.txt file with pip rather than using easy_install as a package installer. pip has now become the recommended installer; see the Python Packaging User Guide for more information.
Update [2015-01]: The previous version of this answer referred to the distribute fork of setuptools. The distribute fork has since been merged back into a newer active setuptools project. distribute is now dead and should no longer be used. setuptools and pip are now very actively maintained and support Python 3.
The argument install_requires in setup function from distutils work for me well, only if I create sdist distributive, like: python setup.py sdist