pip를 사용하여 Python용 정규식을 설치하는 방법은 무엇입니까?

CentOS에 Python 정규식을 설치하는 방법은 무엇입니까?

[nsaunders@rolly ~]$ 
[nsaunders@rolly ~]$ pip3 install re
Collecting re
  Could not find a version that satisfies the requirement re (from versions: )
No matching distribution found for re
[nsaunders@rolly ~]$ 
[nsaunders@rolly ~]$ 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)
bcc (0.8.0)
blivet (3.1.0)
Brlapi (0.6.7)
cffi (1.11.5)
chardet (3.0.4)
chrome-gnome-shell (0.0.0)
configobj (5.0.6)
coverage (4.5.1)
cryptography (2.3)
cupshelpers (1.0)
dbus-python (1.2.4)
decorator (4.2.1)
gpg (1.10.0)
html5lib (0.999999999)
idna (2.5)
iniparse (0.4)
initial-setup (0.3.62.1)
iotop (0.6)
isc (2.0)
jsonpointer (1.10)
kmod (0.1)
langtable (0.0.38)
libvirt-python (4.5.0)
lxml (4.2.3)
netaddr (0.7.19)
netifaces (0.10.6)
ntplib (0.3.3)
ordered-set (2.0.2)
pciutils (2.3.6)
pcp (4.1)
perf (0.1)
pid (2.1.1)
pip (9.0.3)
ply (3.9)
productmd (1.11)
psycopg2 (2.7.5)
pwquality (1.4.0)
pycairo (1.16.3)
pycparser (2.14)
pycups (1.9.72)
pycurl (7.43.0.2)
pydbus (0.6.0)
pygobject (3.28.3)
pykickstart (3.16.7)
pyOpenSSL (18.0.0)
pyparted (3.11.0)
PySocks (1.6.8)
python-augeas (0.5.0)
python-dateutil (2.6.1)
python-dmidecode (3.12.2)
python-linux-procfs (0.6)
python-meh (0.47.2)
pytz (2017.2)
pyudev (0.21.0)
pyxdg (0.25)
PyYAML (3.12)
requests (2.20.0)
requests-file (1.4.3)
requests-ftp (0.3.1)
rhnlib (2.8.6)
rpm (4.14.2)
rtslib-fb (2.1.69)
schedutils (0.6)
selinux (2.9)
sepolicy (1.1)
setools (4.2.2)
setroubleshoot (1.1)
setuptools (39.2.0)
simpleline (1.1)
six (1.11.0)
slip (0.6.4)
slip.dbus (0.6.4)
sos (3.7)
SSSDConfig (2.2.0)
syspurpose (1.25.17)
systemd-python (234)
urllib3 (1.24.2)
webencodings (0.5.1)
[nsaunders@rolly ~]$ 
[nsaunders@rolly ~]$ lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description:    CentOS Linux release 8.1.1911 (Core) 
Release:    8.1.1911
Codename:   Core
[nsaunders@rolly ~]$