# Problems with python builds

**URL:** <https://travis-ci.community/t/problems-with-python-builds/12845>\
**Category:** Travis CI Discussions & Feedback\
**Tags:** python\
**Created:** [March 22, 2022, 8:23pm UTC](https://travis-ci.community/t/problems-with-python-builds/12845 "2022-03-22T20:23:58Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tam-Lin](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/tam-lin/32/7816_2.png) [@Tam-Lin](https://travis-ci.community/u/Tam-Lin)\
**Post date:** [March 22, 2022, 8:23pm UTC](https://travis-ci.community/t/problems-with-python-builds/12845/1 "2022-03-22T20:23:58Z")

</div>

I have a problem with building a python 3.7 project; nothing has actually changed in the python code since the last successful build, and other releases are building without a problem. It appears to be blowing up invoking tox at all:

> **[Travis CI - Test and Deploy with Confidence](https://app.travis-ci.com/github/Tam-Lin/zoslogs/jobs/564109345)**
>
> Travis CI enables your team to test and ship your apps with confidence. Easily sync your projects with Travis CI and you'll be testing your code in minutes.

---

<div class="post-metadata">

**Author:** ![mustafaergul](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/mustafaergul/32/7814_2.png) [@mustafaergul](https://travis-ci.community/u/mustafaergul)\
**Post date:** [March 25, 2022, 8:03am UTC](https://travis-ci.community/t/problems-with-python-builds/12845/2 "2022-03-25T08:03:40Z")

</div>

Hey,

Using the constant pip version might be helpful in your case;

`python -m pip install pip==21.3.1`

This command could be added to the `before_install` phase.

Thanks,

Mustafa  
Travis CI Staff