Conda run fails when running a python file containing input (reading from stdin)

[DonJayamanne]

Current Behavior

• Create a python file as follows:

import time
x = input("Hello")
print(x)

• Assume you have a conda environment named env01
• Conda version 4.7.12 on Mac
• Run in terminal as follows conda run -n=env01 python two.py
• The output isn't displayed due to Provide a way to run conda run w/o buffering stdout (and output in general) #9412
  • Hit Enter and the output is displayed.
• Thats fine.
• Update to conda 4.8.1
• Run in terminal as follows conda run -n=env01 python two.py

ERROR conda.cli.main_run:execute(30): Subprocess for 'conda run ['python', 'two.py']' command failed.  (See above for error)
Hello
Traceback (most recent call last):
  File "two.py", line 2, in <module>
    x = input("Hello")
EOFError: EOF when reading a line

Steps to Reproduce

Expected Behavior

Running python files with input should work when using conda run.
It used to work in conda version 4.7.12 and doesn't anymore in 4.8.1

Environment Information

`conda info`

     active environment : None
            shell level : 0
       user config file : /Users/donjayamanne/.condarc
 populated config files : /Users/donjayamanne/.condarc
          conda version : 4.8.1
    conda-build version : not installed
         python version : 3.7.4.final.0
       virtual packages : __osx=10.15.2
       base environment : /Users/donjayamanne/miniconda3  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/osx-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/osx-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /Users/donjayamanne/miniconda3/pkgs
                          /Users/donjayamanne/.conda/pkgs
       envs directories : /Users/donjayamanne/miniconda3/envs
                          /Users/donjayamanne/.conda/envs
               platform : osx-64
             user-agent : conda/4.8.1 requests/2.22.0 CPython/3.7.4 Darwin/19.2.0 OSX/10.15.2
                UID:GID : 501:20
             netrc file : None
           offline mode : False

`conda config --show-sources`

==> /Users/donjayamanne/.condarc <==
auto_activate_base: False

`conda list --show-channel-urls`

# packages in environment at /Users/donjayamanne/miniconda3:
#
# Name                    Version                   Build  Channel
asn1crypto                1.2.0                    py37_0    defaults
ca-certificates           2019.11.27                    0    defaults
certifi                   2019.11.28               py37_0    defaults
cffi                      1.13.2           py37hb5b8e2f_0    defaults
chardet                   3.0.4                 py37_1003    defaults
conda                     4.8.1                    py37_0    defaults
conda-package-handling    1.6.0            py37h1de35cc_0    defaults
cryptography              2.8              py37ha12b0ac_0    defaults
idna                      2.8                      py37_0    defaults
libcxx                    4.0.1                hcfea43d_1    defaults
libcxxabi                 4.0.1                hcfea43d_1    defaults
libedit                   3.1.20181209         hb402a30_0    defaults
libffi                    3.2.1                h475c297_4    defaults
ncurses                   6.1                  h0a44026_1    defaults
openssl                   1.1.1d               h1de35cc_3    defaults
pip                       19.3.1                   py37_0    defaults
pycosat                   0.6.3            py37h1de35cc_0    defaults
pycparser                 2.19                     py37_0    defaults
pyopenssl                 19.1.0                   py37_0    defaults
pysocks                   1.7.1                    py37_0    defaults
python                    3.7.4                h359304d_1    defaults
python.app                2                        py37_9    defaults
readline                  7.0                  h1de35cc_5    defaults
requests                  2.22.0                   py37_1    defaults
ruamel_yaml               0.15.87          py37h1de35cc_0    defaults
setuptools                44.0.0                   py37_0    defaults
six                       1.13.0                   py37_0    defaults
sqlite                    3.30.1               ha441bb4_0    defaults
tk                        8.6.8                ha441bb4_0    defaults
tqdm                      4.40.2                     py_0    defaults
urllib3                   1.25.7                   py37_0    defaults
wheel                     0.33.6                   py37_0    defaults
xz                        5.2.4                h1de35cc_4    defaults
yaml                      0.1.7                hc338f04_2    defaults
zlib                      1.2.11               h1de35cc_3    defaults

[technic]

I can confirm.

[zhc7]

I'm having the same issue

[jonashaag]

Also have this issue

[IvanPalm]

Same here. Having that issue while running a docker image. Any solution to that?

[odelalleau]

Same here. Having that issue while running a docker image. Any solution to that?

Potential workaround: conda run --no-capture-output

[kenodegard]

Confirming this issue is resolved by using the --no-capture-output argument.