ImportError: cannot import name 'NpipeAdapter' from 'docker.transport'

[leungi]

Inspected the source code for docker package and can't find NpipeAdapter.

Installed packages:

# Name                    Version                   Build  Channel
docker-py                 4.0.2                    py37_0  conda-forge
docker-pycreds            0.4.0                      py_0  conda-forge
#
# Name                    Version                   Build  Channel
pywin32                   224                      pypi_0  pypi
pywinpty                  0.5.5                 py37_1000  conda-forge

> stevedore::docker_available(verbose = T)
#> Failed to create docker client with error message:
#>  ImportError: cannot import name 'NpipeAdapter' from 'docker.transport' 
#> (C:\Users\leungi\CONDA~1\envs\azureML\lib\site-packages\docker\transport\__init__.py)

[richfitz]

I could not replicate this locally, but travis is now seeing something related https://travis-ci.org/richfitz/stevedore/builds/577334116

[aornugent]

Hia, same problem on Windows Server:

> stevedore:::httppipe_available(verbose = TRUE)
Failed to load httppipe with error message:
  ImportError: cannot import name 'NpipeAdapter' from 'docker.transport' (C:\PROGRA~3\ANACON~1\lib\site-packages\docker\transport\__init__.py)
[1] FALSE

pip freeze
docker==4.1.0
pypiwin32==223

> sessionInfo()
R version 3.6.1 (2019-07-05)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows Server x64 (build 18362)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] compiler_3.6.1  Matrix_1.2-17   tools_3.6.1     curl_4.2       
 [5] Rcpp_1.0.1      reticulate_1.13 grid_3.6.1      jsonlite_1.6   
 [9] stevedore_0.9.1 lattice_0.20-38

[richfitz]

Looks like this changed name to NpipeHTTPAdapter at 4d7d4084138fa6161ef5f31d410b0d326d41f777, so we may need to do a bit of a version switching check around the import

[richfitz]

This should be fixed now, with a new version (0.9.3) submitted to CRAN

[leungi]

Verified; thanks!

> reticulate::use_python("C:/Users/leungi/AppData/Local/Continuum/miniconda3/python.exe")
> stevedore::docker_available()
Detected API version '1.40' is above max version '1.39'; downgrading
[1] TRUE