Rudder plugins » Centreon

Hello,

I'm having an issue on a CentOS 8 server running Rudder 6 when trying to install the centreon plugin :
/opt/rudder/bin/rudder-pkg install-file /root/rudder-plugin-centreon-6.0-1.2.rpkg
Installing /root/rudder-plugin-centreon-6.0-1.2.rpkg
The binary python-requests was not found on the system, you must install it before installing rudder-plugin-centreon

When i check if python requests is installed it seems OK :
pip3 list
DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.
asn1crypto (0.24.0)
cffi (1.11.5)
chardet (3.0.4)
configobj (5.0.6)
cryptography (2.3)
decorator (4.2.1)
gpg (1.10.0)
html5lib (0.999999999)
idna (2.5)
iniparse (0.4)
lxml (4.2.3)
mod-wsgi (4.6.4)
netifaces (0.10.6)
pciutils (2.3.6)
perf (0.1)
pip (9.0.3)
ply (3.9)
pycparser (2.14)
pygobject (3.28.3)
pyOpenSSL (18.0.0)
PySocks (1.6.8)
python-dateutil (2.6.1)
python-dmidecode (3.12.2)
python-linux-procfs (0.6)
pyudev (0.21.0)
requests (2.20.0)
rhnlib (2.8.6)
rpm (4.14.2)
schedutils (0.6)
sepolicy (1.1)
setools (4.2.0)
setuptools (39.2.0)
six (1.11.0)
slip (0.6.4)
slip.dbus (0.6.4)
syspurpose (1.23.8)
urllib3 (1.23)
webencodings (0.5.1)

Thank you for your help.