How to analyze dependency tree for conda

Question

Is there a tool for analyzing Conda dependencies as we do have in Maven?

ie: In Java projects (maven based) you say mvn dependency:tree and it shows all the dependencies (along with transitive dependencies) in a readable tree format.

I was wondering if we have something in python based project to analyze Conda dependencies.

Any suggestions?

Answer 1

Check out conda-tree.

Usage (based on the conda-tree webpage):

# version
$ conda-tree --version
conda-tree 0.0.4

# packages that no other package depends on
$ conda-tree leaves
['samtools','bcftools',...]

# dependencies of a specific package
$ conda-tree depends samtools
['curl', 'xz', 'libgcc', 'zlib']

# which packages depend on a specific package
$ conda-tree whoneeds xz
['samtools', 'bcftools', 'htslib', 'python']

# dependency cycles
$ conda-tree cycles
pip -> python -> pip
pip -> wheel -> python -> pip

# query a different conda prefix/env
$ conda-tree -p /conda/envs/trinity leaves
['trinity']

# query by name
$ conda-tree -n trinity leaves
['trinity']

For dependencies installed with pip, check out pipdeptree. It will return a dependency tree of the packages (installed with pip. See the documentation)

try:

pipdeptree

Or if you are looking for the leaves only

pipdeptree --freeze  --warn silence | grep -P '^[\w0-9\-=.]+'

See also this answer.