Question posted in 
I created a virtual environment using command virtualenv env on my terminal. On using pip freeze > requirements.txt after activating the virtual environment, I was a bunch of packages preinstalled.
Here is requirements.txt:
appdirs==1.4.3
CacheControl==0.12.6
certifi==2019.11.28
chardet==3.0.4
colorama==0.4.3
contextlib2==0.6.0
distlib==0.3.0
distro==1.4.0
html5lib==1.0.1
idna==2.8
ipaddr==2.2.0
lockfile==0.12.2
msgpack==0.6.2
packaging==20.3
pep517==0.8.2
progress==1.5
pyparsing==2.4.6
pytoml==0.1.21
requests==2.22.0
retrying==1.3.3
six==1.14.0
urllib3==1.25.8
webencodings==0.5.1
I haven’t installed them and then, why are they there? I don’t want any obsolete packages in the project which takes space and time.
Output on virtualenv env command:
created virtual environment CPython3.7.5.final.0-64 in 297ms
creator CPython3Posix(dest=/home/techmirtz/projects/Django/apps/polls/env, clear=False, global=False)
seeder FromAppData(download=False, pkg_resources=latest, requests=latest, setuptools=latest, wheel=latest, CacheControl=latest, chardet=latest, webencodings=latest, certifi=latest, distlib=latest, idna=latest, colorama=latest, distro=latest, progress=latest, msgpack=latest, pep517=latest, appdirs=latest, urllib3=latest, pip=latest, html5lib=latest, pyparsing=latest, contextlib2=latest, six=latest, lockfile=latest, packaging=latest, pytoml=latest, retrying=latest, ipaddr=latest, via=copy, app_data_dir=/home/techmirtz/.local/share/virtualenv/seed-app-data/v1.0.1.debian)
activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
Also, I activated virtual environment by source env/bin/activate.
Then, I tried conda list:
# packages in environment at /home/techmirtz/anaconda3:
#
# Name Version Build Channel
_anaconda_depends 2019.03 py37_0
_ipyw_jlab_nb_ext_conf 0.1.0 py37_0
_libgcc_mutex 0.1 main
alabaster 0.7.12 py37_0
anaconda custom py37_1
anaconda-client 1.7.2 py37_0
anaconda-navigator 1.9.7 py37_0
anaconda-project 0.8.3 py_0
anyqt 0.0.10 py37_0
asn1crypto 0.24.0 py37_0
astroid 2.2.5 py37_0
astropy 3.2.1 py37h7b6447c_0
atomicwrites 1.3.0 py37_1
attrs 19.1.0 py37_1
babel 2.7.0 py_0
backcall 0.1.0 py37_0
backports 1.0 py_2
backports.functools_lru_cache 1.5 py_2
backports.os 0.1.1 py37_0
backports.shutil_get_terminal_size 1.0.0 py37_2
backports.tempfile 1.0 py_1
backports.weakref 1.0.post1 py_1
beautifulsoup4 4.7.1 py37_1
bitarray 0.9.3 py37h7b6447c_0
bkcharts 0.2 py37_0
blas 1.0 mkl
bleach 3.1.0 py37_0
blosc 1.16.3 hd408876_0
bokeh 1.2.0 py37_0
boto 2.49.0 py37_0
bottleneck 1.2.1 py37h035aef0_1
bzip2 1.0.8 h7b6447c_0
ca-certificates 2020.1.1 0
cairo 1.14.12 h8948797_3
certifi 2020.4.5.1 py37_0
cffi 1.12.3 py37h2e261b9_0
chardet 3.0.4 py37_1
click 7.0 py37_0
cloudpickle 1.2.1 py_0
clyent 1.2.2 py37_1
colorama 0.4.1 py37_0
conda 4.8.3 py37_0
conda-build 3.18.8 py37_0
conda-env 2.6.0 1
conda-package-handling 1.3.11 py37_0
conda-verify 3.4.2 py_1
contextlib2 0.5.5 py37_0
cryptography 2.7 py37h1ba5d50_0
curl 7.65.2 hbc83047_0
cycler 0.10.0 py37_0
cython 0.29.12 py37he6710b0_0
cytoolz 0.10.0 py37h7b6447c_0
dask 2.1.0 py_0
dask-core 2.1.0 py_0
dbus 1.13.6 h746ee38_0
decorator 4.4.0 py37_1
defusedxml 0.6.0 py_0
distributed 2.1.0 py_0
docutils 0.14 py37_0
entrypoints 0.3 py37_0
et_xmlfile 1.0.1 py37_0
expat 2.2.6 he6710b0_0
fastcache 1.1.0 py37h7b6447c_0
filelock 3.0.12 py_0
flask 1.1.1 py_0
fontconfig 2.13.0 h9420a91_0
freetype 2.9.1 h8a8886c_1
fribidi 1.0.5 h7b6447c_0
future 0.17.1 py37_0
get_terminal_size 1.0.0 haa9412d_0
gevent 1.4.0 py37h7b6447c_0
glib 2.56.2 hd408876_0
glob2 0.7 py_0
gmp 6.1.2 h6c8ec71_1
gmpy2 2.0.8 py37h10f8cd9_2
graphite2 1.3.13 h23475e2_0
graphviz 2.40.1 h21bd128_2 anaconda
greenlet 0.4.15 py37h7b6447c_0
gst-plugins-base 1.14.0 hbbd80ab_1
gstreamer 1.14.0 hb453b48_1
h5py 2.9.0 py37h7918eee_0
harfbuzz 1.8.8 hffaf4a1_0
hdf5 1.10.4 hb1b8bf9_0
heapdict 1.0.0 py37_2
html5lib 1.0.1 py37_0
icu 58.2 h9c2bf20_1
idna 2.8 py37_0
imageio 2.5.0 py37_0
imagesize 1.1.0 py37_0
importlib_metadata 0.17 py37_1
intel-openmp 2019.4 243
ipykernel 5.1.1 py37h39e3cac_0
ipython 7.6.1 py37h39e3cac_0
ipython_genutils 0.2.0 py37_0
ipywidgets 7.5.0 py_0
isort 4.3.21 py37_0
itsdangerous 1.1.0 py37_0
jbig 2.1 hdba287a_0
jdcal 1.4.1 py_0
jedi 0.13.3 py37_0
jeepney 0.4 py37_0
jinja2 2.10.1 py37_0
joblib 0.13.2 py37_0
jpeg 9b h024ee3a_2
json5 0.8.4 py_0
jsonschema 3.0.1 py37_0
jupyter 1.0.0 py37_7
jupyter_client 5.3.1 py_0
jupyter_console 6.0.0 py37_0
jupyter_core 4.5.0 py_0
jupyterlab 1.0.2 py37hf63ae98_0
jupyterlab_server 1.0.0 py_0
keyring 18.0.0 py37_0
kiwisolver 1.1.0 py37he6710b0_0
krb5 1.16.1 h173b8e3_7
lazy-object-proxy 1.4.1 py37h7b6447c_0
libarchive 3.3.3 h5d8350f_5
libcurl 7.65.2 h20c2e04_0
libedit 3.1.20181209 hc058e9b_0
libffi 3.2.1 hd88cf55_4
libgcc-ng 9.1.0 hdf63c60_0
libgfortran-ng 7.3.0 hdf63c60_0
liblief 0.9.0 h7725739_2
libpng 1.6.37 hbc83047_0
libsodium 1.0.16 h1bed415_0
libssh2 1.8.2 h1ba5d50_0
libstdcxx-ng 9.1.0 hdf63c60_0
libtiff 4.0.10 h2733197_2
libtool 2.4.6 h7b6447c_5
libuuid 1.0.3 h1bed415_2
libxcb 1.13 h1bed415_1
libxml2 2.9.9 hea5a465_1
libxslt 1.1.33 h7d1a2b0_0
llvmlite 0.29.0 py37hd408876_0
locket 0.2.0 py37_1
lxml 4.3.4 py37hefd8a0e_0
lz4-c 1.8.1.2 h14c3975_0
lzo 2.10 h49e0be7_2
markupsafe 1.1.1 py37h7b6447c_0
matplotlib 3.1.0 py37h5429711_0
mccabe 0.6.1 py37_1
mistune 0.8.4 py37h7b6447c_0
mkl 2019.4 243
mkl-service 2.0.2 py37h7b6447c_0
mkl_fft 1.0.12 py37ha843d7b_0
mkl_random 1.0.2 py37hd81dba3_0
mock 3.0.5 py37_0
more-itertools 7.0.0 py37_0
mpc 1.1.0 h10f8cd9_1
mpfr 4.0.1 hdf1c602_3
mpmath 1.1.0 py37_0
msgpack-python 0.6.1 py37hfd86e86_1
multipledispatch 0.6.0 py37_0
navigator-updater 0.2.1 py37_0
nbconvert 5.5.0 py_0
nbformat 4.4.0 py37_0
ncurses 6.1 he6710b0_1
networkx 2.3 py_0
nltk 3.4.4 py37_0
nose 1.3.7 py37_2
notebook 6.0.0 py37_0
numba 0.44.1 py37h962f231_0
numexpr 2.6.9 py37h9e4a6bb_0
numpy 1.16.4 py37h7e9f1db_0
numpy-base 1.16.4 py37hde5b4d6_0
numpydoc 0.9.1 py_0
olefile 0.46 py37_0
openpyxl 2.6.2 py_0
openssl 1.1.1g h7b6447c_0
packaging 19.0 py37_0
pandas 0.24.2 py37he6710b0_0
pandoc 2.2.3.2 0
pandocfilters 1.4.2 py37_1
pango 1.42.4 h049681c_0
parso 0.5.0 py_0
partd 1.0.0 py_0
patchelf 0.9 he6710b0_3
path.py 12.0.1 py_0
pathlib2 2.3.4 py37_0
patsy 0.5.1 py37_0
pcre 8.43 he6710b0_0
pep8 1.7.1 py37_0
pexpect 4.7.0 py37_0
pickleshare 0.7.5 py37_0
pillow 6.1.0 py37h34e0f95_0
pip 19.1.1 py37_0
pixman 0.38.0 h7b6447c_0
pkginfo 1.5.0.1 py37_0
pluggy 0.12.0 py_0
ply 3.11 py37_0
prometheus_client 0.7.1 py_0
prompt_toolkit 2.0.9 py37_0
psutil 5.6.3 py37h7b6447c_0
ptyprocess 0.6.0 py37_0
py 1.8.0 py37_0
py-lief 0.9.0 py37h7725739_2
pycodestyle 2.5.0 py37_0
pycosat 0.6.3 py37h14c3975_0
pycparser 2.19 py37_0
pycrypto 2.6.1 py37h14c3975_9
pycurl 7.43.0.3 py37h1ba5d50_0
pyflakes 2.1.1 py37_0
pygments 2.4.2 py_0
pylint 2.3.1 py37_0
pyodbc 4.0.26 py37he6710b0_0
pyopenssl 19.0.0 py37_0
pyparsing 2.4.0 py_0
pyqt 5.9.2 py37h05f1152_2
pyqtgraph 0.10.0 py37h28b3542_3
pyrsistent 0.14.11 py37h7b6447c_0
pysocks 1.7.0 py37_0
pytables 3.5.2 py37h71ec239_1
pytest 5.0.1 py37_0
pytest-arraydiff 0.3 py37h39e3cac_0
pytest-astropy 0.5.0 py37_0
pytest-doctestplus 0.3.0 py37_0
pytest-openfiles 0.3.2 py37_0
pytest-remotedata 0.3.1 py37_0
python 3.7.3 h0371630_0
python-dateutil 2.8.0 py37_0
python-graphviz 0.10.1 py_0
python-libarchive-c 2.8 py37_11
pytz 2019.1 py_0
pywavelets 1.0.3 py37hdd07704_1
pyyaml 5.1.1 py37h7b6447c_0
pyzmq 18.0.0 py37he6710b0_0
qt 5.9.7 h5867ecd_1
qtawesome 0.5.7 py37_1
qtconsole 4.5.1 py_0
qtpy 1.8.0 py_0
readline 7.0 h7b6447c_5
requests 2.22.0 py37_0
rope 0.14.0 py_0
ruamel_yaml 0.15.46 py37h14c3975_0
scikit-image 0.15.0 py37he6710b0_0
scikit-learn 0.21.2 py37hd81dba3_0
scipy 1.3.0 py37h7c811a0_0
seaborn 0.9.0 py37_0
secretstorage 3.1.1 py37_0
send2trash 1.5.0 py37_0
setuptools 41.0.1 py37_0
simplegeneric 0.8.1 py37_2
singledispatch 3.4.0.3 py37_0
sip 4.19.8 py37hf484d3e_0
six 1.12.0 py37_0
snappy 1.1.7 hbae5bb6_3
snowballstemmer 1.9.0 py_0
sortedcollections 1.1.2 py37_0
sortedcontainers 2.1.0 py37_0
soupsieve 1.8 py37_0
sphinx 2.1.2 py_0
sphinxcontrib 1.0 py37_1
sphinxcontrib-applehelp 1.0.1 py_0
sphinxcontrib-devhelp 1.0.1 py_0
sphinxcontrib-htmlhelp 1.0.2 py_0
sphinxcontrib-jsmath 1.0.1 py_0
sphinxcontrib-qthelp 1.0.2 py_0
sphinxcontrib-serializinghtml 1.1.3 py_0
sphinxcontrib-websupport 1.1.2 py_0
spyder 3.3.6 py37_0
spyder-kernels 0.5.1 py37_0
sqlalchemy 1.3.5 py37h7b6447c_0
sqlite 3.29.0 h7b6447c_0
statsmodels 0.10.0 py37hdd07704_0
sympy 1.4 py37_0
tbb 2019.4 hfd86e86_0
tblib 1.4.0 py_0
terminado 0.8.2 py37_0
testpath 0.4.2 py37_0
tk 8.6.8 hbc83047_0
toolz 0.10.0 py_0
tornado 6.0.3 py37h7b6447c_0
tqdm 4.32.1 py_0
traitlets 4.3.2 py37_0
unicodecsv 0.14.1 py37_0
unixodbc 2.3.7 h14c3975_0
urllib3 1.24.2 py37_0
wcwidth 0.1.7 py37_0
webencodings 0.5.1 py37_1
werkzeug 0.15.4 py_0
wheel 0.33.4 py37_0
widgetsnbextension 3.5.0 py37_0
wrapt 1.11.2 py37h7b6447c_0
wurlitzer 1.0.2 py37_0
xlrd 1.2.0 py37_0
xlsxwriter 1.1.8 py_0
xlwt 1.3.0 py37_0
xz 5.2.4 h14c3975_4
yaml 0.1.7 had09818_2
zeromq 4.3.1 he6710b0_3
zict 1.0.0 py_0
zipp 0.5.1 py_0
zlib 1.2.11 h7b6447c_3
zstd 1.3.7 h0b5b093_0
2
Answers
I was struggling with the same problem. New virtual environments had many unwanted packages installed, even though some of these are things that I do not even have installed with my system python or any virtual environment. At first I assumed that this must be some local configuration bug, but the list of packages installed is complete identical to the ones that you listed, so it seems more likely that this is a bug in the
virtualenvpackage itself.When I create a new virtualenv it contains the following libraries no matter what:
I wanted to know why these packages were being installed so that I could disable them, and while looking I found that these packages are all in the folder
~/.local/share/virtualenv/seed-app-data/v1.0.1.debian/3.8/wheelsUnfortunately, just removing this folder doesn’t work. It’s regenerated with the same content, so something else upstream is responsible for the bug. This seems likely to be a packaging error by Ubuntu or something like that.
I am on Ubuntu 20.04 with this version of virtualenv:
python3-virtualenv/focal,focal,now 20.0.17-1 all– I never had the issue while on previous versions of Ubuntu. if you have a similar platform that would help confirm the hypothesis.If you need a workaround, I found that the following method for creating virtual environments still works without including all the unwanted packages:
python3 -m venv path/to/venv(You’ll need to run
sudo apt-get install python3-venvfirst for this to work)In my case, I had the same problem, created a virtual environment, and exactly appeared the same pre-installed packages within it.
Data of my system:
Python 3.8.5
Linux Mint 20.1
Note: I do not have
pipinstalled globally on my system, only within virtual environments.The solution that worked for me:
virtualenvinstalledvirtualenvbut not withpython3-virtualenv. Instead, I useThe virtualenv will be installed, and the necessary dependencies of Python3 and its appropriate versions.
Now, when I create a virtual environment this is totally empty.
^ u^)b