当我键入python并点击tab时，将显示以下包
python python3 python3.6m python3m
python2 python3.6 python3.6m-config python3m-config
python2.7 python3.6-config python3-config
当我键入pip list时，将显示以下包
absl-py 0.8.0
apturl 0.5.2
asn1crypto 0.24.0
astor 0.8.0
astroid 2.2.5
attrs 19.1.0
backcall 0.1.0
bleach 3.1.0
Brlapi 0.6.6
certifi 2018.1.18
chardet 3.0.4
command-not-found 0.3
cryptography 2.1.4
cupshelpers 1.0
cycler 0.10.0
decorator 4.4.0
defer 1.0.6
defusedxml 0.6.0
distro-info 0.18ubuntu0.18.04.1
entrypoints 0.3
gast 0.2.2
google-pasta 0.1.7
grpcio 1.23.0
h5py 2.9.0
httplib2 0.9.2
idna 2.6
ipykernel 5.1.2
ipython 7.8.0
ipython-genutils 0.2.0
ipywidgets 7.5.1
isort 4.3.21
jedi 0.15.1
Jinja2 2.10.1
joblib 0.14.0
jsonschema 3.0.2
jupyter 1.0.0
jupyter-client 5.3.3
jupyter-console 6.0.0
jupyter-core 4.5.0
Keras-Applications 1.0.8
Keras-Preprocessing 1.1.0
keyring 10.6.0
keyrings.alt 3.0
kiwisolver 1.1.0
language-selector 0.1
launchpadlib 1.10.6
lazr.restfulclient 0.13.5
lazr.uri 1.0.3
lazy-object-proxy 1.4.2
louis 3.5.0
macaroonbakery 1.1.3
Markdown 3.1.1
MarkupSafe 1.1.1
matplotlib 3.1.1
mccabe 0.6.1
mistune 0.8.4
nbconvert 5.6.0
nbformat 4.4.0
netifaces 0.10.4
nltk 3.4.5
notebook 6.0.1
numpy 1.17.2
oauth 1.0.1
oauthlib 3.1.0
olefile 0.45.1
pandas 0.25.1
pandocfilters 1.4.2
parso 0.5.1
pexpect 4.2.1
pickleshare 0.7.5
Pillow 5.1.0
pip 19.3.1
prometheus-client 0.7.1
prompt-toolkit 2.0.9
protobuf 3.9.1
ptyprocess 0.6.0
pycairo 1.16.2
pycrypto 2.6.1
pycups 1.9.73
Pygments 2.4.2
pygobject 3.26.1
pylint 2.3.1
pymacaroons 0.13.0
PyNaCl 1.1.2
pyparsing 2.4.2
pyRFC3339 1.0
pyrsistent 0.15.4
PySocks 1.7.1
python-apt 1.6.4
python-dateutil 2.6.1
python-debian 0.1.32
pytz 2018.3
pyxdg 0.25
PyYAML 3.12
pyzmq 18.1.0
qtconsole 4.5.5
reportlab 3.4.0
requests 2.18.4
requests-oauthlib 1.3.0
requests-unixsocket 0.1.5
scikit-learn 0.21.3
scipy 1.3.1
SecretStorage 2.3.1
Send2Trash 1.5.0
setuptools 41.2.0
simplejson 3.13.2
six 1.11.0
sklearn 0.0
swampy 3.0.1
system-service 0.3
systemd-python 234
tb-nightly 1.14.0a20190603
tensorflow 2.0.0b1
termcolor 1.1.0
terminado 0.8.2
testpath 0.4.2
textblob 0.15.3
tf-estimator-nightly 1.14.0.dev2019060501
tornado 6.0.3
traitlets 4.3.2
tweepy 3.8.0
typed-ast 1.4.0
ubuntu-drivers-common 0.0.0
ufw 0.36
unattended-upgrades 0.1
urllib3 1.22
virtualenv 16.7.5
wadllib 1.3.2
wcwidth 0.1.7
webencodings 0.5.1
Werkzeug 0.15.6
wheel 0.30.0
widgetsnbextension 3.5.1
wrapt 1.11.2
xkit 0.0.0
zope.interface 4.3.2
我想删除所有的软件包，但保留那些对操作系统很重要的软件包
如果我创建一个Ubuntu18.04容器，安装python、python3并列出一个pip列表，这些就是我得到的包。因此，从理论上讲，您可以删除除以下软件包以外的所有软件包：
$ docker run -it --rm ubuntu:18.04 bash
# inside the docker container:
$ apt update
$ apt install python python-pip python3 python3-pip
$ pip list
asn1crypto (0.24.0)
cryptography (2.1.4)
enum34 (1.1.6)
idna (2.6)
ipaddress (1.0.17)
keyring (10.6.0)
keyrings.alt (3.0)
pip (9.0.1)
pycrypto (2.6.1)
pygobject (3.26.1)
pyxdg (0.25)
SecretStorage (2.3.1)
setuptools (39.0.1)
six (1.11.0)
wheel (0.30.0)
$ pip3 list
asn1crypto (0.24.0)
cryptography (2.1.4)
idna (2.6)
keyring (10.6.0)
keyrings.alt (3.0)
pip (9.0.1)
pycrypto (2.6.1)
pygobject (3.26.1)
pyxdg (0.25)
SecretStorage (2.3.1)
setuptools (39.0.1)
six (1.11.0)
wheel (0.30.0)
