# Python: Command not found

**URL:** <https://ask.bioexcel.eu/t/python-command-not-found/3384>\
**Category:** HADDOCK\
**Created:** [December 16, 2021, 10:29am UTC](https://ask.bioexcel.eu/t/python-command-not-found/3384 "2021-12-16T10:29:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Warren](https://avatars.discourse-cdn.com/v4/letter/w/97f17d/32.png) [@Warren](https://ask.bioexcel.eu/u/Warren)\
**Post date:** [December 16, 2021, 10:29am UTC](https://ask.bioexcel.eu/t/python-command-not-found/3384/1 "2021-12-16T10:29:41Z")

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hello , all  
I have some trouble in using HADDOCK, when I have install the software with ubuntu 20.04,look after:

bioinfo@bioinfo-System-Product-Name:~/haddock2.4$ csh  
./install.csh config.local  
Setting up QueueSubmit to QueueSubmit\_concat.py  
Now compiling HADDOCK utilities  
cd tools;make

HADDOCK2.4 configured  
to use it source first haddock\_configure.csh/sh

edit those two files to define the location of auxiliary software like profit

but , when I have source the file,the error was:  
% source ./haddock\_configure.csh  
python: Command not found.

and the CNS have finished the installation.

Thank you for your advise.

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<div class="post-metadata">

**Author:** ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)\
**Post date:** [December 16, 2021, 3:36pm UTC](https://ask.bioexcel.eu/t/python-command-not-found/3384/2 "2021-12-16T15:36:10Z")

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Are you running in a csh/tcsh terminal?

Check the path to your python installation (haddock2.4 requires python2.7) and possibly edit it in the haddock\_configure.csh script