Repository: conda/conda

Issue:
Conda 4.4 --json --dry-run returns a different format
Could be a feature... or a bug. These breaking changes should probably be reserved for major versions? So Bug it is :-p

## Conda 4.4

```
$ conda install rstudio --dry-run --json
{
  "actions": {
    "LINK": [
      "defaults::font-ttf-dejavu-sans-mono-2.37-0", 
      "defaults::font-ttf-inconsolata-2.000-0", 
      "defaults::font-ttf-source-code-pro-2.030-0", 
      "defaults::font-ttf-ubuntu-0.83-0", 
      "defaults::krb5-1.13.2-0", 
      "defaults::libffi-3.2.1-1", 
      "defaults::libgcc-4.8.5-1", 
      "defaults::ncurses-5.9-10", 
      "defaults::pixman-0.34.0-0", 
      "defaults::zeromq-4.1.3-0", 
      "defaults::fonts-continuum-1-0", 
      "defaults::gettext-0.19.8-1", 
      "defaults::gsl-2.2.1-0", 
      "defaults::libssh2-1.8.0-0", 
      "defaults::pandoc-1.19.2.1-0", 
      "defaults::pcre-8.39-1", 
      "defaults::curl-7.54.1-0", 
      "defaults::glib-2.50.2-1", 
      "defaults::fontconfig-2.12.1-3", 
      "defaults::cairo-1.14.8-0", 
      "defaults::harfbuzz-0.9.39-2", 
      "defaults::pango-1.40.3-1", 
      "defaults::r-base-3.4.1-0", 
      "defaults::r-assertthat-0.2.0-r3.4.1_0", 
      "defaults::r-backports-1.1.0-r3.4.1_0", 
      "defaults::r-base64enc-0.1_3-r3.4.1_0", 
      "defaults::r-bh-1.62.0_1-r3.4.1_0", 
      "defaults::r-bindr-0.1-r3.4.1_0", 
      "defaults::r-bitops-1.0_6-r3.4.1_2", 
      "defaults::r-boot-1.3_19-r3.4.1_0", 
      "defaults::r-cluster-2.0.6-r3.4.1_0", 
      "defaults::r-codetools-0.2_15-r3.4.1_0", 
      "defaults::r-colorspace-1.3_2-r3.4.1_0", 
      "defaults::r-crayon-1.3.2-r3.4.1_0", 
      "defaults::r-curl-2.6-r3.4.1_0", 
      "defaults::r-data.table-1.10.4-r3.4.1_0", 
      "defaults::r-dbi-0.6_1-r3.4.1_0", 
      "defaults::r-dichromat-2.0_0-r3.4.1_2", 
      "defaults::r-digest-0.6.12-r3.4.1_0", 
      "defaults::r-foreign-0.8_68-r3.4.1_0", 
      "defaults::r-formatr-1.5-r3.4.1_0", 
      "defaults::r-glue-1.1.1-r3.4.1_0", 
      "defaults::r-gtable-0.2.0-r3.4.1_0", 
      "defaults::r-highr-0.6-r3.4.1_0", 
      "defaults::r-hms-0.3-r3.4.1_0", 
      "defaults::r-iterators-1.0.8-r3.4.1_0", 
      "defaults::r-jsonlite-1.5-r3.4.1_0", 
      "defaults::r-kernsmooth-2.23_15-r3.4.1_0", 
      "defaults::r-labeling-0.3-r3.4.1_2", 
      "defaults::r-lattice-0.20_35-r3.4.1_0", 
      "defaults::r-lazyeval-0.2.0-r3.4.1_0", 
      "defaults::r-magrittr-1.5-r3.4.1_2", 
      "defaults::r-maps-3.2.0-r3.4.1_0", 
      "defaults::r-mass-7.3_47-r3.4.1_0", 
      "defaults::r-mime-0.5-r3.4.1_0", 
      "defaults::r-mnormt-1.5_5-r3.4.1_0", 
      "defaults::r-nloptr-1.0.4-r3.4.1_2", 
      "defaults::r-nnet-7.3_12-r3.4.1_0", 
      "defaults::r-openssl-0.9.6-r3.4.1_0", 
      "defaults::r-packrat-0.4.8_1-r3.4.1_0", 
      "defaults::r-pkgconfig-2.0.1-r3.4.1_0", 
      "defaults::r-plogr-0.1_1-r3.4.1_0", 
      "defaults::r-r6-2.2.1-r3.4.1_0", 
      "defaults::r-randomforest-4.6_12-r3.4.1_0", 
      "defaults::r-rcolorbrewer-1.1_2-r3.4.1_3", 
      "defaults::r-rcpp-0.12.11-r3.4.1_0", 
      "defaults::r-rematch-1.0.1-r3.4.1_0", 
      "defaults::r-repr-0.10-r3.4.1_0", 
      "defaults::r-rjsonio-1.3_0-r3.4.1_2", 
      "defaults::r-rlang-0.1.1-r3.4.1_0", 
      "defaults::r-rpart-4.1_11-r3.4.1_0", 
      "defaults::r-rstudioapi-0.6-r3.4.1_0", 
      "defaults::r-sourcetools-0.1.6-r3.4.1_0", 
      "defaults::r-sparsem-1.77-r3.4.1_0", 
      "defaults::r-spatial-7.3_11-r3.4.1_0", 
      "defaults::r-stringi-1.1.5-r3.4.1_0", 
      "defaults::r-uuid-0.1_2-r3.4.1_0", 
      "defaults::r-xtable-1.8_2-r3.4.1_0", 
      "defaults::r-yaml-2.1.14-r3.4.1_0", 
      "defaults::r-bindrcpp-0.2-r3.4.1_0", 
      "defaults::r-catools-1.17.1-r3.4.1_2", 
      "defaults::r-class-7.3_14-r3.4.1_0", 
      "defaults::r-foreach-1.4.3-r3.4.1_0", 
      "defaults::r-hexbin-1.27.1-r3.4.1_0", 
      "defaults::r-htmltools-0.3.6-r3.4.1_0", 
      "defaults::r-httpuv-1.3.3-r3.4.1_0", 
      "defaults::r-httr-1.2.1-r3.4.1_0", 
      "defaults::r-irdisplay-0.4.4-r3.4.1_0", 
      "defaults::r-markdown-0.8-r3.4.1_0", 
      "defaults::r-matrix-1.2_10-r3.4.1_0", 
      "defaults::r-minqa-1.2.4-r3.4.1_2", 
      "defaults::r-modelmetrics-1.1.0-r3.4.1_0", 
      "defaults::r-munsell-0.4.3-r3.4.1_0", 
      "defaults::r-nlme-3.1_131-r3.4.1_0", 
      "defaults::r-pbdzmq-0.2_6-r3.4.1_0", 
      "defaults::r-pki-0.1_3-r3.4.1_0", 
      "defaults::r-plyr-1.8.4-r3.4.1_0", 
      "defaults::r-rcurl-1.95_4.8-r3.4.1_0", 
      "defaults::r-rprojroot-1.2-r3.4.1_0", 
      "defaults::r-stringr-1.2.0-r3.4.1_0", 
      "defaults::r-tibble-1.3.3-r3.4.1_0", 
      "defaults::r-xml2-1.1.1-r3.4.1_0", 
      "defaults::r-zoo-1.8_0-r3.4.1_0", 
      "defaults::r-cellranger-1.1.0-r3.4.1_0", 
      "defaults::r-dplyr-0.7.0-r3.4.1_0", 
      "defaults::r-evaluate-0.10-r3.4.1_0", 
      "defaults::r-forcats-0.2.0-r3.4.1_0", 
      "defaults::r-glmnet-2.0_10-r3.4.1_0", 
      "defaults::r-htmlwidgets-0.8-r3.4.1_1", 
      "defaults::r-lubridate-1.6.0-r3.4.1_0", 
      "defaults::r-matrixmodels-0.4_1-r3.4.1_0", 
      "defaults::r-mgcv-1.8_17-r3.4.1_0", 
      "defaults::r-pryr-0.1.2-r3.4.1_0", 
      "defaults::r-psych-1.7.5-r3.4.1_0", 
      "defaults::r-purrr-0.2.2.2-r3.4.1_0", 
      "defaults::r-rcppeigen-0.3.3.3.0-r3.4.1_0", 
      "defaults::r-readr-1.1.1-r3.4.1_0", 
      "defaults::r-reshape2-1.4.2-r3.4.1_0", 
      "defaults::r-rsconnect-0.8-r3.4.1_0", 
      "defaults::r-scales-0.4.1-r3.4.1_0", 
      "defaults::r-selectr-0.3_1-r3.4.1_0", 
      "defaults::r-shiny-1.0.3-r3.4.1_0", 
      "defaults::r-survival-2.41_3-r3.4.1_0", 
      "defaults::r-xts-0.9_7-r3.4.1_2", 
      "defaults::r-ggplot2-2.2.1-r3.4.1_0", 
      "defaults::r-haven-1.0.0-r3.4.1_0", 
      "defaults::r-irkernel-0.7.1-r3.4.1_0", 
      "defaults::r-knitr-1.16-r3.4.1_0", 
      "defaults::r-lme4-1.1_13-r3.4.1_0", 
      "defaults::r-quantreg-5.33-r3.4.1_0", 
      "defaults::r-readxl-1.0.0-r3.4.1_0", 
      "defaults::r-recommended-3.4.1-r3.4.1_0", 
      "defaults::r-rvest-0.3.2-r3.4.1_0", 
      "defaults::r-tidyr-0.6.3-r3.4.1_0", 
      "defaults::r-ttr-0.23_1-r3.4.1_0", 
      "defaults::r-broom-0.4.2-r3.4.1_0", 
      "defaults::r-pbkrtest-0.4_7-r3.4.1_0", 
      "defaults::r-quantmod-0.4_9-r3.4.1_0", 
      "defaults::r-rmarkdown-1.5-r3.4.1_0", 
      "defaults::r-car-2.1_4-r3.4.1_0", 
      "defaults::r-gistr-0.4.0-r3.4.1_0", 
      "defaults::r-modelr-0.1.0-r3.4.1_0", 
      "defaults::r-caret-6.0_76-r3.4.1_0", 
      "defaults::r-rbokeh-0.5.0-r3.4.1_0", 
      "defaults::r-tidyverse-1.1.1-r3.4.1_0", 
      "defaults::r-essentials-1.6.0-r3.4.1_0", 
      "defaults::rstudio-1.0.153-1"
    ], 
    "UNLINK": []
  }, 
  "dry_run": true, 
  "prefix": "/Users/gpena-castellanos/anaconda/envs/py36", 
  "success": true
}
```

## Conda 4.3

```
$ conda install rstudio --dry-run --json
{
  "actions": [
    {
      "LINK": [
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "font-ttf-dejavu-sans-mono-2.37-0", 
          "name": "font-ttf-dejavu-sans-mono", 
          "platform": null, 
          "version": "2.37", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "font-ttf-inconsolata-2.000-0", 
          "name": "font-ttf-inconsolata", 
          "platform": null, 
          "version": "2.000", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "font-ttf-source-code-pro-2.030-0", 
          "name": "font-ttf-source-code-pro", 
          "platform": null, 
          "version": "2.030", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "font-ttf-ubuntu-0.83-0", 
          "name": "font-ttf-ubuntu", 
          "platform": null, 
          "version": "0.83", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "krb5-1.13.2-0", 
          "name": "krb5", 
          "platform": null, 
          "version": "1.13.2", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "libffi-3.2.1-1", 
          "name": "libffi", 
          "platform": null, 
          "version": "3.2.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "libgcc-4.8.5-1", 
          "name": "libgcc", 
          "platform": null, 
          "version": "4.8.5", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 10, 
          "build_string": "10", 
          "channel": "defaults", 
          "dist_name": "ncurses-5.9-10", 
          "name": "ncurses", 
          "platform": null, 
          "version": "5.9", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "pixman-0.34.0-0", 
          "name": "pixman", 
          "platform": null, 
          "version": "0.34.0", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "zeromq-4.1.3-0", 
          "name": "zeromq", 
          "platform": null, 
          "version": "4.1.3", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "fonts-continuum-1-0", 
          "name": "fonts-continuum", 
          "platform": null, 
          "version": "1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "gettext-0.19.8-1", 
          "name": "gettext", 
          "platform": null, 
          "version": "0.19.8", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "gsl-2.2.1-0", 
          "name": "gsl", 
          "platform": null, 
          "version": "2.2.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "libssh2-1.8.0-0", 
          "name": "libssh2", 
          "platform": null, 
          "version": "1.8.0", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "pandoc-1.19.2.1-0", 
          "name": "pandoc", 
          "platform": null, 
          "version": "1.19.2.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "pcre-8.39-1", 
          "name": "pcre", 
          "platform": null, 
          "version": "8.39", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "curl-7.54.1-0", 
          "name": "curl", 
          "platform": null, 
          "version": "7.54.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "glib-2.50.2-1", 
          "name": "glib", 
          "platform": null, 
          "version": "2.50.2", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 3, 
          "build_string": "3", 
          "channel": "defaults", 
          "dist_name": "fontconfig-2.12.1-3", 
          "name": "fontconfig", 
          "platform": null, 
          "version": "2.12.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "cairo-1.14.8-0", 
          "name": "cairo", 
          "platform": null, 
          "version": "1.14.8", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 2, 
          "build_string": "2", 
          "channel": "defaults", 
          "dist_name": "harfbuzz-0.9.39-2", 
          "name": "harfbuzz", 
          "platform": null, 
          "version": "0.9.39", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 1, 
          "build_string": "1", 
          "channel": "defaults", 
          "dist_name": "pango-1.40.3-1", 
          "name": "pango", 
          "platform": null, 
          "version": "1.40.3", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "0", 
          "channel": "defaults", 
          "dist_name": "r-base-3.4.1-0", 
          "name": "r-base", 
          "platform": null, 
          "version": "3.4.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-assertthat-0.2.0-r3.4.1_0", 
          "name": "r-assertthat", 
          "platform": null, 
          "version": "0.2.0", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-backports-1.1.0-r3.4.1_0", 
          "name": "r-backports", 
          "platform": null, 
          "version": "1.1.0", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-base64enc-0.1_3-r3.4.1_0", 
          "name": "r-base64enc", 
          "platform": null, 
          "version": "0.1_3", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-bh-1.62.0_1-r3.4.1_0", 
          "name": "r-bh", 
          "platform": null, 
          "version": "1.62.0_1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-bindr-0.1-r3.4.1_0", 
          "name": "r-bindr", 
          "platform": null, 
          "version": "0.1", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 2, 
          "build_string": "r3.4.1_2", 
          "channel": "defaults", 
          "dist_name": "r-bitops-1.0_6-r3.4.1_2", 
          "name": "r-bitops", 
          "platform": null, 
          "version": "1.0_6", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-boot-1.3_19-r3.4.1_0", 
          "name": "r-boot", 
          "platform": null, 
          "version": "1.3_19", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-cluster-2.0.6-r3.4.1_0", 
          "name": "r-cluster", 
          "platform": null, 
          "version": "2.0.6", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-codetools-0.2_15-r3.4.1_0", 
          "name": "r-codetools", 
          "platform": null, 
          "version": "0.2_15", 
          "with_features_depends": null
        }, 
        {
          "base_url": null, 
          "build_number": 0, 
          "build_string": "r3.4.1_0", 
          "channel": "defaults", 
          "dist_name": "r-colorspace-1.3_2-r3.4.1_0", 
          "name": "r-colorspace", 
          "platform": null, 
          "version": "1.3_2", 
          "with_features_depends": null
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      ], 
      "PREFIX": "/Users/gpena-castellanos/anaconda/envs/py36", 
      "SYMLINK_CONDA": [
        "/Users/gpena-castellanos/anaconda"
      ], 
      "op_order": [
        "CHECK_FETCH", 
        "RM_FETCHED", 
        "FETCH", 
        "CHECK_EXTRACT", 
        "RM_EXTRACTED", 
        "EXTRACT", 
        "UNLINK", 
        "LINK", 
        "SYMLINK_CONDA"
      ]
    }
  ], 
  "dry_run": true, 
  "success": true
}
```




Discussion:

Resolving patch:
diff --git a/conda/cli/common.py b/conda/cli/common.py
--- a/conda/cli/common.py
+++ b/conda/cli/common.py
@@ -8,7 +8,6 @@
 from .._vendor.auxlib.ish import dals
 from ..base.constants import PREFIX_MAGIC_FILE, ROOT_ENV_NAME
 from ..base.context import context
-from ..common.compat import itervalues
 from ..models.match_spec import MatchSpec
 
 
@@ -165,19 +164,6 @@ def stdout_json(d):
 
 def stdout_json_success(success=True, **kwargs):
     result = {'success': success}
-
-    # this code reverts json output for plan back to previous behavior
-    #   relied on by Anaconda Navigator and nb_conda
-    unlink_link_transaction = kwargs.pop('unlink_link_transaction', None)
-    if unlink_link_transaction:
-        from .._vendor.toolz.itertoolz import concat
-        actions = kwargs.setdefault('actions', {})
-        actions['LINK'] = tuple(d.dist_str() for d in concat(
-            stp.link_precs for stp in itervalues(unlink_link_transaction.prefix_setups)
-        ))
-        actions['UNLINK'] = tuple(d.dist_str() for d in concat(
-            stp.unlink_precs for stp in itervalues(unlink_link_transaction.prefix_setups)
-        ))
     result.update(kwargs)
     stdout_json(result)
 
diff --git a/conda/cli/install.py b/conda/cli/install.py
--- a/conda/cli/install.py
+++ b/conda/cli/install.py
@@ -261,8 +261,8 @@ def handle_txn(progressive_fetch_extract, unlink_link_transaction, prefix, args,
         common.confirm_yn()
 
     elif context.dry_run:
-        common.stdout_json_success(unlink_link_transaction=unlink_link_transaction, prefix=prefix,
-                                   dry_run=True)
+        actions = unlink_link_transaction.make_legacy_action_groups(progressive_fetch_extract)[0]
+        common.stdout_json_success(prefix=prefix, actions=actions, dry_run=True)
         raise DryRunExit()
 
     try:
@@ -279,4 +279,4 @@ def handle_txn(progressive_fetch_extract, unlink_link_transaction, prefix, args,
 
     if context.json:
         actions = unlink_link_transaction.make_legacy_action_groups(progressive_fetch_extract)[0]
-        common.stdout_json_success(actions=actions)
+        common.stdout_json_success(prefix=prefix, actions=actions)
diff --git a/conda/core/link.py b/conda/core/link.py
--- a/conda/core/link.py
+++ b/conda/core/link.py
@@ -672,6 +672,8 @@ def make_link_actions(transaction_context, package_info, target_prefix, requeste
         ))
 
     def make_legacy_action_groups(self, pfe):
+        # this code reverts json output for plan back to previous behavior
+        #   relied on by Anaconda Navigator and nb_conda
         from ..models.dist import Dist
         legacy_action_groups = []
 
@@ -684,9 +686,9 @@ def make_legacy_action_groups(self, pfe):
 
             actions['PREFIX'] = setup.target_prefix
             for prec in setup.unlink_precs:
-                actions['UNLINK'].append(prec)
+                actions['UNLINK'].append(Dist(prec))
             for prec in setup.link_precs:
-                actions['LINK'].append(prec)
+                actions['LINK'].append(Dist(prec))
 
             legacy_action_groups.append(actions)
 


Test patch:
diff --git a/tests/test_create.py b/tests/test_create.py
--- a/tests/test_create.py
+++ b/tests/test_create.py
@@ -374,9 +374,22 @@ def assert_json_parsable(content):
         try:
             prefix = make_temp_prefix(str(uuid4())[:7])
 
+            stdout, stderr = run_command(Commands.CREATE, prefix, "python=3.5 --json --dry-run", use_exception_handler=True)
+            assert_json_parsable(stdout)
+            assert not stderr
+
+            # regression test for #5825
+            # contents of LINK and UNLINK is expected to have Dist format
+            json_obj = json.loads(stdout)
+            dist_dump = json_obj['actions']['LINK'][0]
+            assert 'dist_name' in dist_dump
+
             stdout, stderr = run_command(Commands.CREATE, prefix, "python=3.5 --json")
             assert_json_parsable(stdout)
             assert not stderr
+            json_obj = json.loads(stdout)
+            dist_dump = json_obj['actions']['LINK'][0]
+            assert 'dist_name' in dist_dump
 
             stdout, stderr = run_command(Commands.INSTALL, prefix, 'flask=0.10 --json')
             assert_json_parsable(stdout)
@@ -404,6 +417,12 @@ def assert_json_parsable(content):
             assert not package_is_installed(prefix, 'flask-0.')
             assert_package_is_installed(prefix, 'python-3')
 
+            # regression test for #5825
+            # contents of LINK and UNLINK is expected to have Dist format
+            json_obj = json.loads(stdout)
+            dist_dump = json_obj['actions']['UNLINK'][0]
+            assert 'dist_name' in dist_dump
+
             stdout, stderr = run_command(Commands.LIST, prefix, '--revisions --json')
             assert not stderr
             json_obj = json.loads(stdout)
@@ -1037,8 +1056,9 @@ def test_create_dry_run_json(self):
         stdout, stderr = run_command(Commands.CREATE, prefix, "flask", "--dry-run", "--json", use_exception_handler=True)
 
         loaded = json.loads(stdout)
-        assert "python" in "\n".join(loaded['actions']['LINK'])
-        assert "flask" in "\n".join(loaded['actions']['LINK'])
+        names = set(d['name'] for d in loaded['actions']['LINK'])
+        assert "python" in names
+        assert "flask" in names
 
     def test_packages_not_found(self):
         with make_temp_env() as prefix: