# Mage generateCustomBeat - This backport is for Python 2.7 only

**URL:** <https://discuss.elastic.co/t/mage-generatecustombeat-this-backport-is-for-python-2-7-only/210839>\
**Category:** Beats\
**Tags:** beats-development\
**Created:** [December 6, 2019, 7:18am UTC](https://discuss.elastic.co/t/mage-generatecustombeat-this-backport-is-for-python-2-7-only/210839 "2019-12-06T07:18:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gdcrocx](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gdcrocx/32/41289_2.png) [@gdcrocx](https://discuss.elastic.co/u/gdcrocx)\
**Post date:** [December 6, 2019, 7:18am UTC](https://discuss.elastic.co/t/mage-generatecustombeat-this-backport-is-for-python-2-7-only/210839/1 "2019-12-06T07:18:14Z")

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I am trying to build a new beat for pushing PCAPs to the Elastic Stack. I am seeing issues when generating the beat as it is looking for functools32 in a python 3.6 environment. Should I change it to functools as we are dealing with py3.6 or do we need separate requirements.txt for v2.7 and v3.6?

```
elk@elk-pc:~/go/src/github.com/elastic/beats$ mage generateCustomBeat
2019/12/06 02:01:32 Found Elastic Beats dir at /home/elk/go/src/github.com/elastic/beats
Enter the beat name [examplebeat]: Pcapbeat
Enter your github name [your-github-name]: gdcrocx
Enter the beat path [github.com/gdcrocx/pcapbeat]:
Enter your full name [Firstname Lastname]: George Davis
Enter the beat type [beat]: beat
You have uncommited changes in elastic/beats. Running CopyVendor running in dev mode, elastic/beats will be copied into the vendor directory with cp
ERROR: Command errored out with exit status 1:
 command: /home/elk/go/src/github.com/gdcrocx/pcapbeat/build/python-env/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-hwi8t3ph/functools32/setup.py'"'"'; __file__ ='"'"'/tmp/pip-install-hwi8t3ph/functools32/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)( __file__ );code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__ , '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-hwi8t3ph/functools32/pip-egg-info
     cwd: /tmp/pip-install-hwi8t3ph/functools32/
Complete output (1 lines):
This backport is for Python 2.7 only.
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
make: *** [vendor/github.com/elastic/beats/libbeat/scripts/Makefile:240: python-env] Error 1
Error: running "make update" failed with exit code 2

```

I am using Lubuntu 19.04, go version go1.13.5 linux/amd64

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 3, 2020, 7:18am UTC](https://discuss.elastic.co/t/mage-generatecustombeat-this-backport-is-for-python-2-7-only/210839/2 "2020-01-03T07:18:22Z")

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