(Windows uses the PATH environment variable to find DLLs, and apparently conda expects this to be set in order to run properly — it happens when you "activate" the Conda environment in normal usage.)
Also fix a test failure due to the --lock argument being dropped from the latest conda release (conda/conda#8310).
Attempt to fix AppVeyor failure as describe here: https://github.com/JuliaPy/Conda.jl/pull/162#issuecomment-567961168
(Windows uses the
PATHenvironment variable to find DLLs, and apparentlycondaexpects this to be set in order to run properly — it happens when you "activate" the Conda environment in normal usage.)Also fix a test failure due to the
--lockargument being dropped from the latest conda release (conda/conda#8310).