conda create failure--RemoveError: 'futures' is a dependency of conda and cannot be removed from conda's operating environment.

[yuanzhenjie]

Current Behavior : conda create failure
conda create -n faces python=3.7

(base) [root@dl-gpu ~]# conda create -n faces python=3.7
Collecting package metadata: done
Solving environment: done

## Package Plan ##

  environment location: /data/software/anaconda2/envs/faces

  added / updated specs:
    - python=3.7


The following NEW packages will be INSTALLED:

  ca-certificates    pkgs/main/linux-64::ca-certificates-2019.1.23-0
  certifi            pkgs/main/linux-64::certifi-2019.3.9-py37_0
  libedit            pkgs/main/linux-64::libedit-3.1.20181209-hc058e9b_0
  libffi             pkgs/main/linux-64::libffi-3.2.1-hd88cf55_4
  libgcc-ng          pkgs/main/linux-64::libgcc-ng-8.2.0-hdf63c60_1
  libstdcxx-ng       pkgs/main/linux-64::libstdcxx-ng-8.2.0-hdf63c60_1
  ncurses            pkgs/main/linux-64::ncurses-6.1-he6710b0_1
  openssl            pkgs/main/linux-64::openssl-1.1.1b-h7b6447c_1
  pip                pkgs/main/linux-64::pip-19.0.3-py37_0
  python             pkgs/main/linux-64::python-3.7.2-h0371630_0
  readline           pkgs/main/linux-64::readline-7.0-h7b6447c_5
  setuptools         pkgs/main/linux-64::setuptools-40.8.0-py37_0
  sqlite             pkgs/main/linux-64::sqlite-3.27.2-h7b6447c_0
  tk                 pkgs/main/linux-64::tk-8.6.8-hbc83047_0
  wheel              pkgs/main/linux-64::wheel-0.33.1-py37_0
  xz                 pkgs/main/linux-64::xz-5.2.4-h14c3975_4
  zlib               pkgs/main/linux-64::zlib-1.2.11-h7b6447c_3


Proceed ([y]/n)? y

Preparing transaction: done
Verifying transaction: failed

RemoveError: 'futures' is a dependency of conda and cannot be removed from
conda's operating environment.

conda info:

     active environment : base
    active env location : /data/software/anaconda2
            shell level : 1
       user config file : /root/.condarc
 populated config files : /root/.condarc
          conda version : 4.6.8
    conda-build version : 3.11.0
         python version : 2.7.15.final.0
       base environment : /data/software/anaconda2  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/free/linux-64
                          https://repo.anaconda.com/pkgs/free/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /data/software/anaconda2/pkgs
                          /root/.conda/pkgs
       envs directories : /data/software/anaconda2/envs
                          /root/.conda/envs
               platform : linux-64
             user-agent : conda/4.6.8 requests/2.21.0 CPython/2.7.15 Linux/3.10.0-229.el7.x86_64 centos/7.1.1503 glibc/2.22
                UID:GID : 0:0
             netrc file : None
           offline mode : False

(base) [root@dl-gpu ~]# conda config --show-sources
==> /root/.condarc <==
channels:
  - defaults
show_channel_urls: True

Environment variable:

# packages in environment at /data/software/anaconda2:
#
# Name                    Version                   Build  Channel
futures                   3.2.0                    pypi_0    pypi

I try the follow failed solution

pip uninstall futures

but rise another issue:

(base) [root@dl-gpu ~]# conda install futures
Traceback (most recent call last):
  File "/data/software/anaconda2/bin/conda", line 13, in <module>
    sys.exit(main())
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/cli/main.py", line 116, in main
    from ..exceptions import conda_exception_handler
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/exceptions.py", line 24, in <module>
    from .common.io import dashlist, timeout
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/common/io.py", line 7, in <module>
    from concurrent.futures import ThreadPoolExecutor, _base, as_completed
ImportError: No module named concurrent.futures

(base) [root@dl-gpu ~]# conda create -n facetest python=3.7
Traceback (most recent call last):
  File "/data/software/anaconda2/bin/conda", line 13, in <module>
    sys.exit(main())
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/cli/main.py", line 116, in main
    from ..exceptions import conda_exception_handler
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/exceptions.py", line 24, in <module>
    from .common.io import dashlist, timeout
  File "/data/software/anaconda2/lib/python2.7/site-packages/conda/common/io.py", line 7, in <module>
    from concurrent.futures import ThreadPoolExecutor, _base, as_completed
ImportError: No module named concurrent.futures

How I fixed it?

[yuanzhenjie]

My worried are the same as his.
Just conda update conda https://github.com/conda/conda/issues/8149#issuecomment-463193757
It will update python of base(conda) to 3.7 and update same pkg to base 3.7 .

The following packages will be UPDATED:

  cffi                         pkgs/free::cffi-1.7.0-py27_0 --> pkgs/main::cffi-1.12.2-py36h2e261b9_1
  cryptography                         2.4.1-py27h1ba5d50_0 --> 2.6.1-py36h1ba5d50_0
  pycparser                pkgs/free::pycparser-2.14-py27_1 --> pkgs/main::pycparser-2.19-py36_0
  pyopenssl              pkgs/free::pyopenssl-16.2.0-py27_0 --> pkgs/main::pyopenssl-19.0.0-py36_0
  python                                  2.7.15-h9bab390_4 --> 3.6.7-h0371630_0
  ruamel_yaml         pkgs/free::ruamel_yaml-0.11.14-py27_0 --> pkgs/main::ruamel_yaml-0.11.14-py36ha2fb22d_2
  six                          pkgs/free::six-1.10.0-py27_0 --> pkgs/main::six-1.12.0-py36_0
  wheel                      pkgs/free::wheel-0.29.0-py27_0 --> pkgs/main::wheel-0.33.1-py36_0

The following packages will be DOWNGRADED:

  asn1crypto                                  0.24.0-py27_0 --> 0.24.0-py36_0
  certifi                                   2019.3.9-py27_0 --> 2019.3.9-py36_0
  chardet                                      3.0.4-py27_1 --> 3.0.4-py36_1
  conda                                        4.6.8-py27_0 --> 4.6.8-py36_0
  idna                                           2.8-py27_0 --> 2.8-py36_0
  pycosat                              0.6.3-py27ha4109ae_0 --> 0.6.3-py36h14c3975_0
  pysocks                                      1.6.8-py27_0 --> 1.6.8-py36_0
  requests                                    2.21.0-py27_0 --> 2.21.0-py36_0
  setuptools                                  40.8.0-py27_0 --> 40.8.0-py36_0
  urllib3                                     1.24.1-py27_0 --> 1.24.1-py36_0

But I have other environments, so don`t want to do this
It is similar to this one. #8149

[yuanzhenjie]

Only updated to 3.7?

[github-actions]

Hi there, thank you for your contribution!

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