{
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  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "c821b77e-5db8-433c-8b39-151991d40c4a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "17 17\n"
     ]
    }
   ],
   "source": [
    "!conda env export > all_packages.yml\n",
    "!conda env export --from-history > explicit_packages.yml\n",
    "\n",
    "import yaml\n",
    "\n",
    "# Load the explicitly installed packages from history\n",
    "with open(\"explicit_packages.yml\", 'r') as f:\n",
    "    explicit = yaml.safe_load(f)\n",
    "explicit_names = explicit[\"dependencies\"] + [\"datashader\"]\n",
    "\n",
    "# Load all the packages with their versions\n",
    "with open(\"all_packages.yml\", 'r') as f:\n",
    "    all_pkgs = yaml.safe_load(f)\n",
    "\n",
    "# Filter the packages to keep only explicit ones with their versions\n",
    "final_deps = [pkg.rsplit(\"=\", 1)[0] for pkg in all_pkgs['dependencies'] if pkg.split(\"=\")[0] in explicit_names]\n",
    "\n",
    "# Update the dependencies\n",
    "explicit['dependencies'] = final_deps\n",
    "del explicit[\"prefix\"]\n",
    "\n",
    "# Save the combined result\n",
    "with open(\"environment.yml\", 'w') as f:\n",
    "    yaml.safe_dump(explicit, f)\n",
    "\n",
    "print(len(explicit_names), len(final_deps))"
   ]
  }
 ],
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