# \[SOLVED\] Virtualenv : command not found

**URL:** <https://community.letsencrypt.org/t/solved-virtualenv-command-not-found/2127>\
**Category:** Help\
**Created:** [October 25, 2015, 11:05pm UTC](https://community.letsencrypt.org/t/solved-virtualenv-command-not-found/2127 "2015-10-25T23:05:47Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![eva2000](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/eva2000/32/289_2.png) [@eva2000](https://community.letsencrypt.org/u/eva2000)\
**Post date:** [October 26, 2015, 12:00am UTC](https://community.letsencrypt.org/t/solved-virtualenv-command-not-found/2127/3 "2015-10-26T00:00:48Z")

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> [@kilone](#):
>
> Hello,I have a centos6 and i try the following command to install client :
> 
> git clone [https://github.com/letsencrypt/letsencryptcd](https://github.com/letsencrypt/letsencryptcd) letsencrypt./letsencrypt-auto
> 
> and i get the following error : virtualenv : command not found.

fyi you also need python 2.7 instead of centos 6's default python 2.6 see [[SOLVED]Error installing the client CentOS 6.7 - #2 by eva2000](https://community.letsencrypt.org/t/solved-error-installing-the-client-centos-6-7/2078/2)

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