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Bug 1982135 - tito build fails with ImportError: No module named request
Summary: tito build fails with ImportError: No module named request
Keywords:
Status: MODIFIED
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: tito
Version: epel7
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Jakub Kadlčík
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-14 09:56 UTC by Pavol Babinčák
Modified: 2021-07-15 08:24 UTC (History)
2 users (show)

Fixed In Version:
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Type: Bug
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Description Pavol Babinčák 2021-07-14 09:56:05 UTC 
Description of problem:
tito build cannot be used on RHEL 7 machine which has python2 interpreter

Version-Release number of selected component (if applicable):
tito-0.6.18-1.el7

How reproducible:
Always

Steps to Reproduce:
0. $ podman run --rm -ti rhel7 bash   
# yum-config-manager --enable rhel-7-server-optional-rpms > /dev/null
# yum-config-manager --enable rhel-7-server-extras-rpms > /dev/null
# yum --quiet -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
1. Install tito: yum --quiet -y install tito
2. Take any configured project, e.g. tito repo itself: git clone https://github.com/rpm-software-management/tito && cd ./tito
3. Try to create a tarball: tito build --offline --tgz

Actual results:
Creating output directory: /tmp/tito
Traceback (most recent call last):
  File "/usr/bin/tito", line 9, in <module>
    load_entry_point('tito==0.6.18', 'console_scripts', 'tito')()
  File "/usr/lib/python2.7/site-packages/tito/cli.py", line 910, in main
    CLI().main(sys.argv[1:])
  File "/usr/lib/python2.7/site-packages/tito/cli.py", line 209, in main
    return module.main(argv)
  File "/usr/lib/python2.7/site-packages/tito/cli.py", line 391, in main
    builder_class=self.options.builder, **kwargs)
  File "/usr/lib/python2.7/site-packages/tito/common.py", line 161, in create_builder
    "builder"))
  File "/usr/lib/python2.7/site-packages/tito/common.py", line 976, in get_class_by_name
    mod = __import__(module, globals(), locals(), [class_name])
  File "/usr/lib/python2.7/site-packages/tito/builder/__init__.py", line 6, in <module>
    from tito.builder.main import \
  File "/usr/lib/python2.7/site-packages/tito/builder/main.py", line 24, in <module>
    import urllib.request
ImportError: No module named request


Expected results:
No error, e.g.:

Building package [tito-0.6.18-1]
Wrote: /tmp/tito/tito-0.6.18.tar.gz


Additional info:

I believe this bug was introduced with https://github.com/rpm-software-management/tito/commit/5de167e0ff134fa682ccac55f511ce04877c1707 which uses python3-only import.
Comment 1 Jakub Kadlčík 2021-07-14 22:17:43 UTC 
Thank you for the report Pavol and for taking the time to point out the source of the problem.

I had a little difficulty with the reproducer, so I modified it slightly.

$ docker run -it centos:7 bash
# yum install epel-release
# yum install tito 
# git clone https://github.com/rpm-software-management/tito && cd ./tito
# tito build --offline --tgz

The proposed fix is here: https://github.com/rpm-software-management/tito/pull/409
Comment 2 Pavol Babinčák 2021-07-15 08:24:16 UTC 
(In reply to Jakub Kadlčík from comment #1)
> Thank you for the report Pavol and for taking the time to point out the
> source of the problem.

No worries! I guess I should've written that I have run those commands on already subscribed RHEL 8 machine.

I guess you might have run into issue with that - subscription manager is disabled in containers in that case but one could use yum-config-manager to enable repositories.
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