导出pip安装的所有的包：

pip freeze > piplist.txt

在新的环境中安装导出的包

pip install -r piplist.txt

astroid==2.3.3

autopep8==1.5

beautifulsoup4==4.9.0

certifi==2020.4.5.1

chardet==3.0.4

Django==2.0

django-shortuuidfield==0.1.3

get==2019.4.13

idna==2.9

isort==4.3.21

lazy-object-proxy==1.4.3

lxml==4.5.0

mccabe==0.6.1

post==2019.4.13

public==2019.4.13

pycodestyle==2.5.0

pylint==2.4.4

pylint-django==2.0.14

pylint-plugin-utils==0.6

PyMySQL==0.9.3

python-memcached==1.59

pytz==2019.3

query-string==2019.4.13

redis==3.4.1

requests==2.23.0

shortuuid==1.0.1

six==1.14.0

soupsieve==2.0

typed-ast==1.4.1

urllib3==1.25.8

wrapt==1.11.2

yapf==0.29.0

appdirs==1.4.3

asn1crypto==0.24.0

catfish==1.4.4

certifi==2018.1.18

chardet==3.0.4

command-not-found==0.3

cryptography==2.1.4

cupshelpers==1.0

defer==1.0.6

distlib==0.3.0

distro-info===0.18ubuntu0.18.04.1

filelock==3.0.12

httplib2==0.9.2

idna==2.6

importlib-metadata==1.5.0

importlib-resources==1.3.1

kazam==1.4.5

keyring==10.6.0

keyrings.alt==3.0

language-selector==0.1

launchpadlib==1.10.6

lazr.restfulclient==0.13.5

lazr.uri==1.0.3

lightdm-gtk-greeter-settings==1.2.2

meld==3.18.0

menulibre==2.2.0

mugshot==0.4.0

netifaces==0.10.4

oauth==1.0.1

olefile==0.45.1

onboard==1.4.1

pbr==5.4.4

pexpect==4.2.1

Pillow==5.1.0

psutil==5.4.2

pycairo==1.16.2

pycrypto==2.6.1

pycups==1.9.73

pycurl==7.43.0.1

pygobject==3.26.1

python-apt==1.6.5+ubuntu0.2

python-dateutil==2.6.1

python-debian==0.1.32

python-debianbts==2.7.2

python-magic==0.4.16

pyxattr==0.6.0

pyxdg==0.25

PyYAML==3.12

reportlab==3.4.0

requests==2.18.4

requests-unixsocket==0.1.5

SecretStorage==2.3.1

sgt-launcher==0.2.4

simplejson==3.13.2

six==1.14.0

stevedore==1.32.0

systemd-python==234

ubuntu-drivers-common==0.0.0

ufw==0.36

unattended-upgrades==0.1

urllib3==1.22

vboxapi==1.0

virtualenv==20.0.10

virtualenv-clone==0.5.3

virtualenvwrapper==4.8.4

wadllib==1.3.2

xcffib==0.5.1

xkit==0.0.0

you-get==0.4.1432

youtube-dl==2020.3.8

zipp==3.1.0

zope.interface==4.3.2