Render the dependency graph for your conda environment (needs graphviz!)

render_env.py

import json
import glob
from os.path import join, basename, dirname
from os import getcwd
from sys import argv
# install this with "conda install -c conda-forge python-graphviz"
try:
  import graphviz as gv
except ImportError:
  print("Missing graphviz python module. Install using:")
  print()
  print("conda install -c conda-forge python-graphviz")
  print()
  exit(1)
from subprocess import check_output, CalledProcessError

# get path to conda environment
if len(argv) == 0:
  path = getcwd()
else:
  try:
    path = check_output(["conda", "..activate", "bash"] + argv[1:])
    path = dirname(path).decode('ascii')
  except CalledProcessError:
    exit(1)

fname = 'env-%s' % basename(path)
fmt = "svg"

dg = gv.Digraph(filename=fname, format=fmt)

for json_file in glob.glob(join(path, 'conda-meta', '*.json')):
    print('reading', json_file)
    j = json.load(open(json_file))
    dg.node(j['name'])
    for dep in j.get('depends', []):
        dg.edge(j['name'], dep.split(' ')[0])

dg.render()

print("Wrote {}.{}".format(fname, fmt))